Safety of household and similar appliances - Particular requirements for mains operated shredders and chippers

This European Standard specifies safety requirements and their verification for the design and construction of hand fed, shredders/chippers with integral electric motor, not exceeding 250 V single phase, with or without vacuum assisted collection which are designed to reduce organic material to smaller pieces and are used in a stationary position by an operator standing on the ground. This standard applies to shredders/chippers with feed intake openings or segments, in this standard referred to as feed safety openings that in total will fit into a square of 250 mm x 250 mm. NOTE For the requirements for the measurement of the square of 250 mm x 250 mm are given in clause 20.101.1 of this standard. In this European Standard shredders and chippers are referred to collectively as machine(s). This European Standard does not cover requirements for – machines powered by combustion engines; NOTE 1 Combustion engine driven machines are covered by EN 13683. – machines driven by an external power source or by battery power; – machines with powered discharge intended to broadcast material or load vehicles; – machines with mechanically powered feed intake or attachments; – wood chippers for agricultural, lawn and park and forestry use; NOTE 2 Wood chippers are covered by EN 13525. – machines powered from a 3 phase supply. This European Standard deals with all significant hazards presented by shredders/chippers when they are used as intended and under conditions of misuse which are reasonably foreseeable. EMC and environmental aspects, except noise, have not been considered in this European Standard. This European Standard is not applicable to machines which are manufactured before the date of publication of this document by CENELEC.

Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke - Besondere Anforderungen für netzbetriebene Schredder, Häcksler und Zerkleinerer

Sécurité des appareils électrodomestiques et analogues - Règles particulières pour les broyeurs et déchiqueteurs fonctionnant sur le réseau

Varnost električnih gospodinjskih in podobnih aparatov - Posebne zahteve za omrežno napajane drobilnike in sekalnike

Standard EN 50434 določa varnostne zahteve in njihovo preverjanje za načrtovanje ter konstrukcijo drobilnikov/sekalnikov z ročnim podajanjem in z vgrajenim električnim motorjem, katerih nazivna napetost ne presega 250 V pri eni fazi, z zbiranjem z vakuumom ali brez njega, ki so zasnovani za zmanjšanje organskih materialov na manjše koščke in se uporabljajo v stacionarnem položaju, z operaterjem, ki stoji na tleh. Ta standard velja za drobilnike/sekalnike s segmenti ali odprtinami za polnjenje, ki so v tem standardu poimenovane varnostne odprtine za polnjenje, ki skupaj ustrezajo kvadratu 250 mm x250 mm. V tem evropskem standardu se drobilnikom in sekalnikom skupaj reče stroji. Ta evropski standard ne obravnava zahtev za – stroje, ki jih napajajo motorji z zgorevanjem. OPOMBA 1: Stroji z motorji z zgorevanjem so obravnavani v standardu EN 13683; – stroje, ki jih poganja zunanji vir napajanja ali baterija; – stroje z motornim praznjenjem, ki so namenjeni raztresu materiala ali tovornim vozilom; – stroje z mehansko gnanim polnjenjem ali pritrditvami; – sekalnike lesa za uporabo v kmetijstvu, za trate, parke in gozdove; – stroje, ki se napajajo prek trifaznega napajanja. Ta evropski standard opisuje vsa večja tveganja, ki jih predstavljajo drobilniki/sekalniki, kadar se uporabljajo v skladu z njihovim namenom in pod pogoji razumno predvidene nepravilne uporabe. Elektromagnetna združljivost in okoljski vidiki z izjemo hrupa niso obravnavani v tem evropskem standardu. Ta evropski standard se ne uporablja za stroje, izdelane pred datumom, ko je CENELEC objavil ta dokument.

General Information

Status
Published
Publication Date
05-Jun-2014
Withdrawal Date
30-Mar-2017
Current Stage
9093 - Decision to confirm - Review Enquiry
Start Date
16-Oct-2019
Completion Date
23-Sep-2025

Relations

Effective Date
25-Feb-2025

Overview

EN 50434:2014 - published by CENELEC (CLC) - specifies safety requirements and test methods for mains‑operated household and similar shredders and chippers. It applies to hand‑fed, stationary shredders/chippers with an integral electric motor (single‑phase, not exceeding 250 V) and feed safety openings that fit within a 250 mm × 250 mm square. The standard addresses mechanical, electrical and operational hazards arising during normal use and reasonably foreseeable misuse. EMC and environmental aspects (except noise) are not covered.

Key topics and requirements

EN 50434 supplements EN 60335‑1:2012 (Household and similar electrical appliances - General requirements) and aligns with the Machinery Directive 2006/42/EC. Major technical areas covered include:

  • Scope and classification of shredders/chippers (stationary, hand‑fed, integral motor)
  • Feed safety openings and measurement rules (250 × 250 mm criterion)
  • Mechanical hazards: guarding, stability, mechanical strength, thrown‑object protection and safe distances from shredding means
  • Electrical safety: protection against access to live parts, leakage current, electric strength, transient overvoltages, starting/stopping and overload protection
  • Operational safety: marking and instructions, safe starting procedures, endurance and abnormal operation tests
  • Noise: measurement methods and noise test code (engineering method, Grade 2)
  • Construction and components: internal wiring, terminals, earthing, creepage/clearance, resistance to heat/fire and corrosion
  • Annexes: safety signs, test enclosure specification, target panel details, sample safety instructions and noise measurement coordinates

Note: EN 50434 excludes combustion‑engine machines, battery or externally powered units, mechanically powered feeds, three‑phase supply machines, machines with powered discharge for broadcasting/loading, and forestry/agricultural wood chippers (covered by other standards such as EN 13683 and EN 13525).

Applications and who uses it

EN 50434 is primarily used by:

  • Manufacturers and designers of domestic/amenity shredders and chippers to design compliant, safe products
  • Test laboratories and conformity assessors conducting safety and noise testing for CE marking
  • Product safety and compliance engineers responsible for technical files and risk assessments
  • Regulators, importers and retailers verifying conformity to EU safety and machinery requirements
  • Technical writers preparing user manuals, safety labels and instructions aligned with annex guidance

Practical uses include product development, type testing, risk reduction measures, creation of safety instructions/labels and supporting conformity with EU Directives.

Related standards

  • EN 60335‑1:2012 (household electrical appliance general requirements)
  • EN ISO 12100 (risk assessment)
  • EN ISO 13857 (safety distances)
  • EN 13683 / EN 13525 (for combustion‑engine and forestry chippers respectively)

Keywords: EN 50434:2014, shredders and chippers safety, household appliance standards, feed safety opening, CENELEC, noise test code, product compliance, CE marking.

Frequently Asked Questions

EN 50434:2014 is a standard published by CLC. Its full title is "Safety of household and similar appliances - Particular requirements for mains operated shredders and chippers". This standard covers: This European Standard specifies safety requirements and their verification for the design and construction of hand fed, shredders/chippers with integral electric motor, not exceeding 250 V single phase, with or without vacuum assisted collection which are designed to reduce organic material to smaller pieces and are used in a stationary position by an operator standing on the ground. This standard applies to shredders/chippers with feed intake openings or segments, in this standard referred to as feed safety openings that in total will fit into a square of 250 mm x 250 mm. NOTE For the requirements for the measurement of the square of 250 mm x 250 mm are given in clause 20.101.1 of this standard. In this European Standard shredders and chippers are referred to collectively as machine(s). This European Standard does not cover requirements for – machines powered by combustion engines; NOTE 1 Combustion engine driven machines are covered by EN 13683. – machines driven by an external power source or by battery power; – machines with powered discharge intended to broadcast material or load vehicles; – machines with mechanically powered feed intake or attachments; – wood chippers for agricultural, lawn and park and forestry use; NOTE 2 Wood chippers are covered by EN 13525. – machines powered from a 3 phase supply. This European Standard deals with all significant hazards presented by shredders/chippers when they are used as intended and under conditions of misuse which are reasonably foreseeable. EMC and environmental aspects, except noise, have not been considered in this European Standard. This European Standard is not applicable to machines which are manufactured before the date of publication of this document by CENELEC.

This European Standard specifies safety requirements and their verification for the design and construction of hand fed, shredders/chippers with integral electric motor, not exceeding 250 V single phase, with or without vacuum assisted collection which are designed to reduce organic material to smaller pieces and are used in a stationary position by an operator standing on the ground. This standard applies to shredders/chippers with feed intake openings or segments, in this standard referred to as feed safety openings that in total will fit into a square of 250 mm x 250 mm. NOTE For the requirements for the measurement of the square of 250 mm x 250 mm are given in clause 20.101.1 of this standard. In this European Standard shredders and chippers are referred to collectively as machine(s). This European Standard does not cover requirements for – machines powered by combustion engines; NOTE 1 Combustion engine driven machines are covered by EN 13683. – machines driven by an external power source or by battery power; – machines with powered discharge intended to broadcast material or load vehicles; – machines with mechanically powered feed intake or attachments; – wood chippers for agricultural, lawn and park and forestry use; NOTE 2 Wood chippers are covered by EN 13525. – machines powered from a 3 phase supply. This European Standard deals with all significant hazards presented by shredders/chippers when they are used as intended and under conditions of misuse which are reasonably foreseeable. EMC and environmental aspects, except noise, have not been considered in this European Standard. This European Standard is not applicable to machines which are manufactured before the date of publication of this document by CENELEC.

EN 50434:2014 is classified under the following ICS (International Classification for Standards) categories: 65.060.70 - Horticultural equipment. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 50434:2014 has the following relationships with other standards: It is inter standard links to EN IEC 62841-4-8:2025. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN 50434:2014 is associated with the following European legislation: EU Directives/Regulations: 2006/42/EC, 98/37/EC; Standardization Mandates: M/396. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

You can purchase EN 50434:2014 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CLC standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-april-2015
9DUQRVWHOHNWULþQLKJRVSRGLQMVNLKLQSRGREQLKDSDUDWRY3RVHEQH]DKWHYH]D
RPUHåQRQDSDMDQHGURELOQLNHLQVHNDOQLNH
Safety of household and similar appliances - Particular requirements for mains operated
shredders and chippers
Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke - Besondere
Anforderungen für netzbetriebene Schredder, Häcksler und Zerkleinerer
Sécurité des appareils électrodomestiques et analogues - Règles particulières pour les
broyeurs et déchiqueteurs fonctionnant sur le réseau
Ta slovenski standard je istoveten z: EN 50434:2014
ICS:
65.060.70 Vrtnarska oprema Horticultural equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50434
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2014
ICS 65.060.70
English Version
Safety of household and similar appliances - Particular
requirements for mains operated shredders and chippers
Sécurité des appareils électrodomestiques et analogues - Sicherheit elektrischer Geräte für den Hausgebrauch und
Règles particulières pour les broyeurs et déchiqueteurs ähnliche Zwecke - Besondere Anforderungen für
fonctionnant sur le réseau netzbetriebene Schredder, Häcksler und Zerkleinerer
This European Standard was approved by CENELEC on 2014-03-31. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50434:2014 E
Contents
Introduction . 6
1 Scope . 7
2 Normative references. 7
3 Terms and Definitions. 8
4 General requirements .11
5 General conditions for the tests .11
6 Classification .11
7 Marking and instructions .11
8 Protection against access to live parts.14
9 Starting of motor-operated appliances .14
10 Power input and current .15
11 Heating .15
12 Void .15
13 Leakage current and electric strength at operating temperature .15
14 Transient overvoltages .15
15 Moisture resistance.15
16 Leakage current and electric strength .16
17 Overload protection of transformers and associated circuits .16
18 Endurance .16
19 Abnormal operations .16
20 Stability and mechanical hazards .16
21 Mechanical strength.32
22 Construction .32
23 Internal wiring .33
24 Components .33
25 Supply connection and external flexible cables and cords .33
26 Terminals for external conductors .33
27 Provision for earthing .34
28 Screws and connections .34
29 Creepage distances, clearances and distances through insulation .34
30 Resistance to heat, fire and tracking .34
31 Resistance to rusting .34
32 Radiation, toxicity and similar hazards.34
Annexes .35
Annex AA (normative) Safety signs .35
Annex BB (informative) Methods of combining round, square and slot shapes ≤ 50 mm
complying with safety distance ≥ 20 mm .39
Annex CC (normative) Test enclosure .42
Annex DD (normative) Target panels - Specification for corrugated fibreboard .45

- 3 - EN 50434:2014
Annex EE (informative) Safety instructions for shredders/chippers .47
Annex FF (normative) Noise test code – Engineering method (Grade 2) .50
Annex GG (informative) Example of a material and construction fulfilling the requirements
for an artificial surface .58
Annex ZZ (informative) Coverage of Essential Requirements of EU Directives .60
Bibliography .60
Figures
Figure 1 - Examples of typical shredders/chippers . 10
Figure 2 - Distance from feed safety opening to shredding means . 22
Figure 3 - Examples of discharge chute distance requirements . 25
Figure 4 - Thrown object test fixture - General layout . 28
Figure 5 - Kraft paper target panel placement . 29
Figure AA.1 - "Read operator's manual" . 35
Figure AA.2 - "Danger - Rotating blades. Keep hands and feet out of openings while machine is
running" . 35
Figure AA.3 - "Keep bystanders away" . 36
Figure AA.4 - "Wear hearing protection" . 36
Figure AA.5 - "Wear eye protection" . 36
Figure AA.6 - "Wear eye and hearing protection" . 36
Figure AA.7 - "Switch off and remove plug from mains before adjusting, cleaning or if the cord
is entangled or damaged" . 37
Figure AA.8 - "Wait until all machine components have completely stopped before touching
them" . 37
Figure AA.9 - "Do not use as a step" . 38
Figures BB.1 - BB.3 - Opening sizes ≤ 45 mm . 39
Figures BB.4 - BB.7 - Opening sizes > 45 ≤ 50 mm . 40
Figure BB.8 - Opening sizes ≤ 50 mm, pinch point ≤ 26 mm . 41
Figure CC.1 - Test enclosure walls and base (not to scale) . 43
Figure CC.2 - Nail plan of test fixture base if 500 mm squares are used . 44
Figure DD.1 - Test fixture for corrugated fibreboard penetration test . 46
Figure FF.1 - Microphone positions on the hemisphere (see Table FF.1) . 52
Figure FF.2 - Microphone position for measurement of emission sound pressure level and
location of machine with respect to the microphone co-ordinate system . 54
Figure GG.1 - Sketch of the measurement surface covered with an artificial surface (not to
scale) .589
Tables
Table 1 - Safety distances of shredding means from feed safety openings . 16
Table FF.1 - Co-ordinates of microphone positions . 52
Table FF.2 - Absorption coefficients . 54

Foreword
This document (EN 50434:2014) has been prepared by WG 5, "Gardening appliances", of the
Technical Committee CENELEC TC 116, "Safety of motor-operated electric tools".
The following dates are fixed:

• latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2015-03-31
national standard or by endorsement

• latest date by which the national standards conflicting
(dow) 2017-03-31
with the EN have to be withdrawn

– alignment to the European Machinery Directive 2006/42/EC;
– alignment to EN 60335-1:2012.
This European Standard is to be used in conjunction with EN 60335-1:2012 “Household and similar
electrical appliances – Safety – Part 1: General requirements”.
When Part 1 is mentioned in this standard, it refers to EN 60335-1:2012.
This European Standard supplements or modifies the corresponding clauses in Part 1, so as to
convert that publication into the European Standard “Safety requirements for shredders/chippers”.
Where a particular subclause of Part 1 is not mentioned in this standard, that subclause applies as far
as is relevant. Where this standard states “addition”, “modification” or “replacement”, the relevant text
in Part 1 is to be adapted accordingly.
Compliance with the relevant clauses of Part 1 together with this European Standard provides one
means of conforming to the specified essential health and safety requirements of the Directive.
This European Standard follows the overall requirements of EN ISO 12100:2010.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive.
For the relationship with EU Directive 2006/42/EC, see informative Annex ZZ, which is an integral part
of this document.
Warning: Other requirements arising from other EU Directives can be applicable to the products
falling within the scope of this European Standard.
The following numbering system is used:
– subclauses that are numbered starting from 101 are additional to those in Part 1;
– additional annexes are lettered AA, BB, etc.
NOTE In this European Standard the following print types are used:
- requirements proper: in roman type;
- test specifications: in italic type;
- explanatory matter: in smaller roman type.
Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the adjective and the associated
noun are also in bold.
- 5 - EN 50434:2014
Introduction
This document is a type C standard as stated in EN ISO 12100:2010.
The machinery concerned and the extent to which hazards, hazardous situations and events are
covered is as indicated in the scope of this document.
When provisions of this type C standard are different from those which are stated in type A or B
standards, the provisions of this type C standard take precedence over the other standards, for
machines which have been built and designed to the provisions of this type C standard.

1 Scope
Replacement:
This European Standard specifies safety requirements and their verification for the design and
construction of hand fed, shredders/chippers with integral electric motor, not exceeding 250 V single
phase, with or without vacuum assisted collection which are designed to reduce organic material to
smaller pieces and are used in a stationary position by an operator standing on the ground. This
standard applies to shredders/chippers with feed intake openings or segments, in this standard
referred to as feed safety openings that in total will fit into a square of 250 mm x 250 mm.
NOTE For the requirements for the measurement of the square of 250 mm x 250 mm are given in clause 20.101.1 of this
standard.
In this European Standard shredders and chippers are referred to collectively as machine(s).
This European Standard does not cover requirements for
– machines powered by combustion engines;
NOTE 1 Combustion engine driven machines are covered by EN 13683.
– machines driven by an external power source or by battery power;
– machines with powered discharge intended to broadcast material or load vehicles;
– machines with mechanically powered feed intake or attachments;
– wood chippers for agricultural, lawn and park and forestry use;
NOTE 2 Wood chippers are covered by EN 13525.
– machines powered from a 3 phase supply.
This European Standard deals with all significant hazards presented by shredders/chippers when
they are used as intended and under conditions of misuse which are reasonably foreseeable.
EMC and environmental aspects, except noise, have not been considered in this European Standard.
This European Standard is not applicable to machines which are manufactured before the date of
publication of this document by CENELEC.
2 Normative references
This clause of Part 1 is applicable except as follows:
Addition:
EN ISO 354:2003, Acoustics — Measurement of sound absorption in a reverberation room
(ISO 354:2003)
EN ISO 3744:2010, Acoustics — Determination of sound power levels and sound energy levels of
noise sources using sound pressure — Engineering methods for an essentially free field over a
reflecting plane (ISO 3744:2010)

- 7 - EN 50434:2014
EN ISO 4871:2009, Acoustics — Declaration and verification of noise emission values of machinery
and equipment (ISO 4871:1996)
EN ISO 11201:2010, Acoustics — Noise emitted by machinery and equipment — Determination of
emission sound pressure levels at a work station and at other specified positions in an essentially free
field over a reflecting plane with negligible environmental corrections (ISO 11201:2010)
EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and
risk reduction (ISO 12100:2010)
EN ISO 13849-1:2008, Safety of machinery — Safety-related parts of control systems — Part 1:
General principles for design (ISO 13849-1:2006)
EN ISO 13857:2008, Safety of machinery — Safety distances to prevent hazard zones being reached
by upper and lower limbs (ISO 13857:2008)
3 Terms and definitions
This clause of Part 1 is applicable except as follows:
3.1.9 Replacement:
3.1.9
normal operation
any use of the machine which is specified by the manufacturer, and which is consistent with such
activities as reducing organic material, starting, and stopping
Addition:
3.101
discharge chute
extension of the opening through which the shredded or chipped material is discharged
3.102
discharge zone
any space wherein material is intended to be ejected from the machine
3.103
feed safety opening
opening through which material is passed located at the relevant safety distance from the shredding
means. This may be the same as the feed intake opening in Clause 3.104 or at some point between
the feed intake opening and the shredding means
3.104
feed intake opening
opening through which material is inserted to be fed to the cutting mechanism. A feed intake opening
can become feed safety opening(s) if the relevant safety distance from the shredding means is met
3.105
normal use
normal operation, plus routine maintenance, servicing, cleaning, transporting, attaching or removing
accessories, and making adjustments as determined by the manufacturer's instructions
3.106
material discharge deflector
fixed or movable component designed to direct the flow of processed material discharging from the
machine
3.107
maximum operating speed
highest power source speed obtainable with the shredding means engaged
3.108
operator presence control
control designed so that it will automatically interrupt power to a drive when the operator’s actuating
force is removed
3.109
power source
motor which provides linear or rotational movement
3.110
screen (grid)
perforated piece or bar(s) located between the shredding means and discharge chute or opening of
the machine to assist in reducing organic materials to smaller pieces
3.111
shredder/chipper
machine designed for use in a stationary position having a shredding means for the purpose of
reducing organic materials to smaller pieces. See Figures 1a) and 1b)
3.112
shredding means
mechanism consisting of one or more cutting means with or without a screen (grid), designed to
reduce the size of organic material to smaller pieces

a)
Key
1 feed intake opening
2 discharge chute
- 9 - EN 50434:2014
b)
Key
1 feed intake opening
2 discharge chute
Figure 1 - Examples of typical shredders/chippers
4 General requirements
This clause of Part 1 is applicable.
5 General conditions for the tests
This clause of Part 1 is applicable except as follows:
5.2 Addition:
A new machine shall be used for each of the tests of Clause 21.
6 Classification
This clause of Part 1 is applicable except as follows:
6.1 Replacement:
The machines shall be one of the following classes with respect to protection against electric shock:
class I or class II.
Compliance is checked by inspection and by the relevant tests.
6.2 Addition:
Machines shall be at least IPX4.
7 Marking and instructions
This clause of Part 1 is applicable except as follows:

7.1 Addition:
Add the following new indents:
- business name and full address of the manufacturer and, where applicable his authorized
representative;
- year of construction;
- designation of the machine,
designation of machine may be achieved by a combination of letters and/or numbers provided
this code is explained by giving the explicit designation such as “shredders” or “chipper” etc. in
the instructions supplied with the machine;
NOTE 1 An example of such code is “A123B”.
- designation of series or type,
allowing the technical identification of the product. This may be achieved by a combination of
letters and/or numbers and may be combined with the designation of machine;
NOTE 2 The term “designation of series or type” is also known as model number.
- serial number, if any;
- mandatory markings;
NOTE 3 For machines and their related products intended to be put on the market in the EEA, CE-marking as defined in
the applicable European Directive(s), e.g. the Machinery Directive.
- machines operated continuously shall be marked with rated power in Watts or rated current in
Amperes;
- machines rated intermittently according to 11.5 shall be marked with rated power in Watts or
rated current in Amperes and the duty cycle in parenthesis (P40). This shall be explained in the
instruction manual;
NOTE 4  As an example 1 800 W (P40).
- guards designed to be opened or removed shall have a sign warning of the relevant hazard
visible on the machine both when the guard is closed and when it is opened or removed;
- controls which may give rise to a hazard (e.g. operator presence control and/or on/off switch)
when operated shall be marked or so placed as to indicate clearly which part of the machine they
control;
- where replaceable during normal use, the shredding means shall be marked to identify the part
number(s) and the manufacturer, importer or supplier;
- when a guard or container is so positioned or shaped that it could be misused as a step, there
shall be a warning marking “Do not us as a step” or an equivalent safety sign, an example is
given in Figure AA.9.
Marking giving warning information shall be easily legible and located as close as practicable to the
relevant hazard.
The substance of the following warnings shall be placed in a prominent position on the machine. If a
pictogram is used it shall be that shown in Annex AA. It shall be in contrasting colours to the base
material. If it is embossed, stamped or cast colours are not required. Markings or symbols giving
cautionary information shall be located close to the hazard:
– DANGER - Rotating blades. Keep hands and feet out of openings while machine is running;
– Read the user instructions;
- 11 - EN 50434:2014
– Keep bystanders away;
– WARNING Switch off and remove plug from mains before adjusting, cleaning or if the cord is
damaged.
As appropriate to the machine design:
– Wear eye and/or ear protection;
– Wait until all machine components have completely stopped before touching them.
Compliance shall be checked by inspection.
7.9 This clause of Part 1 is not applicable.
7.12 Replacement:
An instruction manual shall be supplied with the machine, giving operating, servicing, maintenance
and safety instructions that comply as appropriate with EN ISO 12100:2010, Clause 4. The words
‘Original instructions’ shall appear on the language version(s) verified by the manufacturer or his
authorised representative. Where no ‘Original instructions’ exist in the official language(s) of the
country where the machine is to be used, a translation into that/those language(s) shall be provided by
the manufacturer or his authorised representative or by the person bringing the machine into the
language area in question. The translations shall bear the words ‘Translation of the original
instructions’, and they shall be accompanied by a copy of the ‘Original instructions’.
This instruction manual shall include:
a) a repeat of those warnings required to be marked on the machine together with further
explanation, where appropriate. Where safety signs are used in the marking on the machine, their
function shall be explained;
b) a warning to never allow children, persons with reduced physical, sensory or mental capabilities or
lack of experience and knowledge or people unfamiliar with these instructions to use the machine,
local regulations may restrict the age of the operator;
c) a warning to never operate the machine while people, especially children, or pets are nearby;
d) a general description of the machine, the intended use, instructions for the proper use of the
machine including advice on what the machine should be used for, how to use it for the intended
purpose(s) and any reasonably foreseeable misuse thereof;
e) warnings concerning ways - that experience has shown might occur - in which the machinery shall
not be used;
f) instructions for the proper assembly and disassembly of the machine for use, if the machine is not
supplied in a completely assembled form;
g) instructions for proper adjustment and any necessary user maintenance of the machine, including
timescales and a warning of the danger of moving hazardous parts;
h) instructions for the recommended replacement or repair of, or service attention to critical
components. Where parts are consumable, the spare part shall be clearly identified, e.g. by the
use of a part number or other means;
i) instructions on the operation of all controls;
j) information how to start the machine safely;
k) instructions for the operating position and the correct and safe operation of the machine such as
moving, safe positioning, handling, clearing blockages and keeping the discharge chute clear of
processed material for use, preparation, maintenance and storage of the machine;
l) an advice to not overreach and to keep the balance at all times, to always be sure of the footing
on slopes and to walk, never run;

m) a warning not to touch moving hazardous parts before the machine is disconnected from the
mains and the moving hazardous parts have come to a complete stop;
n) an advice on the use, length and type of extension cords to be used (not lighter than required by
Clause 25.7);
o) if a collecting facility is provided with the machine, instructions for when and how to attach and
detach the collection device to and from the machine;
p) information about the residual risks that remain despite the inherent safe design measures,
safeguarding and complementary protective measures adopted;
q) instructions to always wear substantial footwear and long trousers while operating the machine;
r) instructions to disconnect the supply (e.g. remove the plug from the mains or remove the disabling
device)
- whenever the machine is left by the user;
- before clearing a blockage;
- before checking, cleaning or working on the machine;
- after striking a foreign object to inspect the machine for damage;
- if the machine starts to vibrate abnormally, for immediately check;
s) instructions when, where and how to inspect the machine, the supply and extension cord for signs
of damage or ageing and, if permitted, how to make repairs;
t) a warning never to operate the machine with defective guards or shields, or without safety
devices, or if the cord is damaged or worn;
u) an advice not to connect a damaged cord to the supply or touch a damaged cord before it is
disconnected from the supply for the reason that damaged cords can lead to contact with live
parts;
v) an advice to keep extension cords away from moving hazardous parts to avoid damages to the
cords which can lead to contact with live parts;
w) the operating method to be followed in the event of accident or breakdown;
x) instructions how to disconnect the machine from the mains, if the cord becomes damaged or
entangled during use;
y) recommendations
- to connect the machine only to a supply circuit protected by a residual current device (RCD) with
a tripping current of not more than 30 mA,
- to avoid using the machine in bad weather conditions especially when there is a risk of lightning;
z) an explanation of the term (P40) if applicable;
aa) information about airborne noise emissions of the machine according to Annex FF, this includes:
- the A- weighted emission sound pressure level emitted by the machinery, where this exceeds
70 dB(A), where this level does not exceed 70 dB(A), this fact shall be indicated.
- the peak C-weighted instantaneous sound pressure value at machinery, where this exceeds
63 Pa (130 dB in relation to 20 μPa);
- the A-weighted sound power level emitted by the machinery, if the A-weighted emission sound
pressure level exceeds 80 dB(A)
- the uncertainties surrounding the determined noise emission values according to Annex FF.
bb) instructions how to proceed in case of abnormal vibrations;
cc) mass in kilograms.
NOTE Examples of safety instructions are given Annex EE.
Compliance shall be checked by inspection.
7.12.1 This clause of Part 1 is applicable.

- 13 - EN 50434:2014
7.12.5 to 7.12.6 These clauses of Part 1 are applicable.
8 Protection against access to live parts
This clause of Part 1 is applicable.
9 Starting of motor-operated appliances
Motors shall start under all normal voltage conditions that may occur in use.
Centrifugal and other automatic starting switches shall operate reliably and without contact chattering.
Compliance is checked by starting the machine three times, at no load, at a voltage equal to
0,85 times rated voltage or the lower limit of the rated voltage range, with any control device set at
maximum speed.
For the test the shredding means shall be adjusted according to the instruction manual.
The machine shall operate in such a way that safety is not affected.
10 Power input and current
This clause of Part 1 is not applicable.
11 Heating
This clause of Part 1 is applicable.
11.5 Replacement:
Machines shall be tested according to their marking. If the machine is marked with rated power input
or rated current followed by the term (P40) it shall be operated intermittently. All other machines shall
be tested continuously.
Machines marked (P40) are operated intermittently until stabilization or for 30 cycles, whichever is
achieved first, each cycle comprising a period of operation of 40 s at rated power input and a period
of 60 s with the machine at no load. The temperature is measured at the end of a load period.
All other machines are operated continuously. The temperature is measured when the machine has
reached stabilization.
The machine is loaded by means of a brake adjuster so as to attain rated input or rated current.
The machine shall be operated at rated voltage and rated current or rated power input until
stabilization. The torque being applied shall be measured. When tested by 0,94 and 1,06 times rated
voltage the previously determined torque shall be maintained.
12 Void
13 Leakage current and electric strength at operating temperature
This clause of Part 1 is applicable.

14 Transient overvoltages
This clause of Part 1 is applicable.
15 Moisture resistance
This clause of Part 1 is applicable except as follows:
15.1.2 Addition:
Machines with an appliance inlet or cable coupler shall be tested with the appropriate mating
connector in place. Air filters shall not be removed.
15.1.2 Modification:
The machine shall be rotated during the test along its vertical axis. The rate of rotation shall be
1,2 ± 0,2 revolutions per minute.
16 Leakage current and electric strength
This clause of Part 1 is applicable.
17 Overload protection of transformers and associated circuits
This clause of Part 1 is applicable.
18 Endurance
This clause of Part 1 is not applicable.
19 Abnormal operations
This clause of Part 1 is applicable except as follows:
19.9 Replacement:
This clause of Part 1 is not applicable.
20 Stability and mechanical hazards
This clause of Part 1 is applicable except as follows:
20.2 Replacement:
To prevent unexpected operation which may result in a hazard, only non-self-resetting thermal cut-
outs or voltage-maintained non-self-resetting thermal cut-outs are allowed.
Compliance shall be checked by inspection.

- 15 - EN 50434:2014
Addition:
20.101 Access to power driven components
20.101.1 Feed intake openings
The feed intake openings or feed safety openings shall in total fit into a square of
250 mm x 250 mm measured at the plane of the opening(s).
Compliance is checked by inspection and measurement.
20.101.1.1 Combinations of feed intake openings
Combinations of slots, squares, and/or rounds with opening sizes up to and including 45 mm shall
create a pinch point of less or equal 30 mm and with a length of at least 20 mm (see Annex BB,
Figures BB.1 to BB.3).
Combinations with opening sizes greater than 45 mm and up to and including 50 mm shall create a
pinch point of less or equal 26 mm and with a length of at least 20 mm (see Annex BB, Figures BB.4
to BB.8).
Where the length of at least 20 mm has to be decreased, the length shall have sufficient dimension to
prevent breakage increasing the width of the pinch point during use. The created pinch point shall be
less or equal 20 mm for all combinations with opening sizes up to and including 50 mm.
Each shape shall be considered separately for its opening size and the safety distance of at least
200 mm shall be fulfilled (see Table 1 and Annex BB, Figures BB.1 to BB.8).
NOTE Safety distances for combinations with opening sizes greater than 50 mm are covered by Table 1.
Compliance is checked by inspection and measurement.

Table 1 - Safety distances of shredding means from feed safety openings
Feed safety opening Distance - Feed safety opening to shredding means
W mm D mm
Slot Square Round
d
W ≤ 30 D ≥ 200 D ≥ 200 D ≥ 200
a or b d
30 < W ≤ 50 D ≥ 850 D ≥ 200 D ≥ 200
b or c b or c b or c
50 < W ≤ 250 D ≥ 850 D ≥ 850 D ≥ 850
a
D is reduced to ≥ 200 mm if the longest side of the slot is ≤ 50 mm.
b
(i) Where the height (h) is < 1 200 mm and (α) ≤ 40°, D shall be 850 mm measured as the shortest distance to
the shredding means (see Figures 2a and 2b).
(ii) Where the height (h) is < 1 200 mm and 90° ≥ (α) > 40°, D shall be measured as the shortest distance from
the outer edge of the feed intake opening to the shredding means subject to the following conditions (see
Figure 2c):
 L + 150 (2 + sin α) ≥ 850 mm; and
 L ≥ 550 mm.
c
(i) Where the height (h) is ≥ 1 200 mm, and (α) ≤ 40°, D shall be measured as a chain measurement, subject to
the following two conditions (see Figures 2d, 2e and 2f):
 d + d … + d ≥ [ 850 - ½ (h - 1 200) ] mm; and
1 2 n
 L ≥ 550 mm.
(ii) Where the height (h) is ≥ 1 200 mm and 90° ≥ (α) > 40°, D shall be measured as a chain measurement,
subject to the following two conditions (see Figures 2g and 2h):
 d + d … + d ≥ [ L + 150 (2 + sin α) ] - ½ (h - 1 200) mm; and
1 2 n
 L ≥ 550 mm.
d
Where a round opening of ≤ 40 mm is used without combination or overlap with any other shape, D shall be
≥ 120 mm.
- 17 - EN 50434:2014
Dimensions in mm
- 19 - EN 50434:2014
- 21 - EN 50434:2014
Key
h height of lowest point of feed intake opening from ground
L minimum distance from the highest point of the shredding means to (W)
P point on the feed intake with distance ≥ 1200 mm from the ground. P is starting
point for the chain measurement from the feed intake opening to the highest
point of the shredding means
W feed safety opening
α angle between a vertical line through the centre of the shredding means and a
straight line from the point of the shredding means nearest to the opening to
the highest point on the lower side of the inside of the feed inlet
Figure 2 - Distance from feed safety opening to shredding means

20.102 Discharge chutes
Except as stated in Clause 20.103, the discharge chute shall be designed so as to prevent direct
access to and accidental contact with the shredding means. Compliance shall be achieved according
to one of the following:
1) where the highest edge of the discharge opening is less or equal than 350 mm from the
ground, the highest edge of the discharge chute opening shall extend at least 3 mm below the
lowest part of the cutting means and the requirements of a) and/or b) shall be fulfilled:
a) where the distance of the lowest edge of the discharge chute is less than or equal to 30 mm
from the ground (see Figures 3a) and 3b) dimension ), any point of the outer edge of the
guard to the cutting means shall be at least 230 mm, measured as the shortest distance;
b) where the distance of the lowest edge of the discharge chute is greater than 30 mm from the
ground (see Figures 3a) and 3b) dimension ), any point of the outer edge of the guard to the
cutting means shall be at least 550 mm, measured as the shortest distance;
NOTE 1 These shortest distances can be achieved by chain measurement.
2) an operator presence control shall be provided and no point of the discharge chute is more
than 350 mm from the ground. The highest edge of the discharge chute opening shall extend
at least 3 mm below the lowest part of the cutting means, and the minimum distance from any
point on the outer edge of the discharge chute to the cutting means shall be 230 mm (see
Figures 3a) and 3b));
NOTE 2 These shortest distances can be achieved by chain measurement.
3) a tilt switch which stops the shredding means when the machine passes its point of stability
shall be provided and no point of the discharge chute is more than 350 mm from the ground.
The highest edge of the discharge chute opening shall extend at least 3 mm below the lowest
part of the cutting means, and the minimum distance from any point on the outer edge of the
discharge chute to the cutting means shall be 230 mm (see Figures 3a) and 3b));
NOTE 3 These shortest distances can be achieved by chain measurement.
4) where the highest edge of the discharge opening is greater than 350 mm from the ground, and
the opening size is not more than 120 mm x 120 mm, the highest edge of the discharge chute
opening shall extend at least 3 mm below the lowest part of the cutting means and the safety
distance shall conform to the principles set out in EN ISO 13857:2008, Clause 4.2.4.1, or
Clause 4.2.4.3 together with Table 4 as appropriate;
5) where the highest edge of the discharge opening is greater than 350 mm from the ground, and
the opening size is larger than 120 mm x 120 mm, the highest edge of the discharge chute
shall extend at least 3 mm below the lowest part of the cutting means and the safety distance
shall be at least 850 mm. The maximum discharge opening size shall be 250 mm x 250 mm;
6) the highest edge of the discharge chute opening shall extend at least 3 mm below the lowest
part of the cutting means and it shall not be possible to come into contact with the shredding
means by using the test probe B of EN 61032:1998. The tip of the probe shall be inserted a
maximum of 850 mm inside the discharge opening towards the shredding means, measured
from the most unfavourable point on the discharge opening, with a force of not more than
20 N;
7) the discharge chute terminates in a collector, which is interlocked so that the access to the
shredding means is prevented while the machine is running and it shall not be possible to
come into contact with the shredding means using the test probe B of EN 61032:1998. If the
collector contains openings, the tip of the probe shall be inserted a maximum of 850 mm
inside these openings towards the shredding means, measured from the most unfavourable
point on the discharge opening, with a force of not more than 20 N.
Compliance shall be checked by inspection and measurement with the machine on a smooth
horizontal surface.
- 23 - EN 50434:2014
Dimensions in mm
Figure 3a)
Figure 3b)
Key
1 shredding means
2 ground surface
3 discharge direction
A , A , A , …, A points on discharge
1 2 3 n
If A , A is ≤ 30 mm above the ground surface there shall be a safety
1 2
distance of ≥ 230 mm to the cutting means, see 20.102 1) a)
If A3, …, An is > 30 mm above the ground there shall be a safety
distance of ≥ 550 mm to cutting means, see 20.102 1) b)
Figure 3 - Examples of discharge chute distance requirements

- 25 - EN 50434:2014
20.103 Guards
20.103.1 Attachment
Guards allowing access to the shredding means shall be interlocked at least according
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

Loading comments...

The article discusses the safety requirements and verification for the design and construction of hand-fed shredders and chippers. These machines are used to reduce organic material into smaller pieces and are operated by an individual standing on the ground. The standard applies to shredders/chippers with feed intake openings that fit within a square of 250mm x 250mm. It is important to note that the standard does not cover machines powered by combustion engines, machines driven by external power sources or battery power, machines with powered discharge for broadcast or loading vehicles, machines with mechanically powered feed intake or attachments, wood chippers for agricultural, lawn, and park use, and machines powered from a 3 phase supply. This European Standard addresses significant hazards associated with shredders/chippers when used as intended and under reasonably foreseeable misuse conditions. However, it does not consider EMC and environmental aspects, except for noise. Machines manufactured prior to the publication of this document are not subject to this standard.

この記事は、EN 50434:2014という欧州規格における家庭用および類似の家電製品の安全について説明しています。この規格は、手で給餌されるシュレッダー/チッパーについての安全要件とその検証方法を指定しています。これらの機械は、有機材料を小さな断片に減らし、運転者が地面に立って静止した位置で使用されます。この規格は、250mm x 250mmの四角形に収まる給餌口またはセグメントを持つシュレッダー/チッパーに適用されます。この規格では、シュレッダーとチッパーを合わせて「機械」と呼称しています。この規格は、以下の機械には適用されません。- 内燃エンジンで駆動される機械、注1: 内燃エンジン駆動機はEN 13683でカバーされています。- 外部電源またはバッテリー駆動の機械、放送や車両への積み込みを目的とした駆動式排出装置を持つ機械、機械的に駆動する給餌口またはアタッチメントを持つ機械、農業、芝生や公園、林業用のウッドチッパー、注2: ウッドチッパーはEN 13525でカバーされています。- 3相供給で駆動される機械。この規格は、シュレッダー/チッパーが使用目的に従って正しく、予測可能な誤用の条件下で使用された場合に発生する重大な危険に関連するものを扱います。しかし、この規格は、ノイズを除き、EMCや環境の側面については考慮されていません。この規格は、本文書がCENELECによって公開された日付の前に製造された機械には適用されません。

이 기사는 가정 및 유사 가전제품의 안전에 관한 유럽 표준인 EN 50434:2014에 대해 설명하고 있습니다. 이 표준은 기계가지고 손으로 직접 식물 잔해를 작게 만드는 쇄비와 가지고 있는 소수 상호적인 전기 모터(단일 상 250V 미만)로 구동되며, 진공을 사용하여 쓰레기를 수집하는 고정된 위치에서 운영되는 경우의 안전 요구 사항과 이를 확인하기 위하여 설계 및 건축 작업에 대한 요구 사항을 명시합니다. 이 표준은 총 250mm × 250mm의 네모 안에 맞을 수 있는 피진 입력 개구부 또는 세그먼트에 대해 적용됩니다. 쇄비와 가지는 기계로 함께 기계라고 지칭됩니다. 이 유럽 표준은 – 연소 엔진에 의해 구동되는 기계, 참고 1: 연소 엔진 구동 기계는 EN 13683에 의해 다루어집니다. – 외부 전원원에 의해 구동되거나 충전 방식으로 구동되는 기계, – 재료를 분산하는 데 사용되거나 차량을 적재하는 데 사용되는 파워드 배출을 가진 기계, – 기계에 기계적인 원동력을 가진 피진 입력 또는 부착물이 있는 기계, – 농업, 잔디 및 공원 및 산림용으로 사용되는 나무 칩커, 참고 2: 나무 칩커는 EN 13525에서 다루어집니다. – 3상 전원으로 구동되는 기계들의 요구 사항을 다루지 않습니다. 이 유럽 표준은 쇄비와 가지가 의도된 대로 사용되고 합리적으로 예견 가능한 오용 조건에서 발생하는 중대한 위험을 다룹니다. 이 유럽 표준에는 EMC 및 환경 측면, 소음을 제외한 다른 측면은 고려되지 않았습니다. 이 문서가 CENELEC에 의해 게시된 날짜 이전에 제작된 기계에는 이 유럽 표준이 적용되지 않습니다.