IEC PAS 61811-55:2000

Electromechanical all-or-nothing relays - Part 55: Blank detail specification - Electromechanical all-or-nothing telecom relays of assessed quality - Two change-over contacts, 11 mm x 7,5 mm (max.) base

General Information

• Status: Replaced
• Publication Date: 14-Nov-2000
• ICS: 29.120.70 - Relays
• Technical Committee: TC 94 - Electrical relays
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 27-Feb-2002

Relations

• Replaced By: IEC 61811-55:2002 - Electromechanical all-or-nothing relays - Part 55: Blank detail specification - Electromechanical all-or-nothing telecom relays of assessed quality - Two change-over contacts, 11 mm x 7,5 mm (max.) base
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC/PAS 61811-55
Edition 1.0
2000-11
QC 160505
Electromechanical all-or-nothing relays –
Part 55:
Blank detail specification –
Electromechanical all-or-nothing telecom relays
of assessed quality – Two change-over contacts,
11 mm ×××× 7,5 mm (max.) base
PUBLI C LY AVAI LABLE SPECI F I CATI O N
IN TER N A TION AL Reference number
E L E C T R OT E CHNI CA L
IEC/PAS 61811-55
C O MMI S S I O N
IEC/PAS 61811-55
Edition 1.0
2000-11
QC 160505
Electromechanical all-or-nothing relays –
Part 55:
Blank detail specification –
Electromechanical all-or-nothing telecom relays
of assessed quality – Two change-over contacts,
11 mm ×××× 7,5 mm (max.) base
PUBLI C LY AVAI LABLE SPECI F I CATI O N
IN TER N A TION AL Reference number
E L E C T R OT E CHNI CA L
IEC/PAS 61811-55
C O MMI S S I O N
– 2 – Copyright  2000:IEC
CONTENTS
Page
FOREWORD .3

Clause
1 General. 4

1.1 Scope . 4

1.2 References . 4

1.3 Front page of detail specification . 6

2 Characteristic values of the relay. 8
2.1 General data. 8
2.2 Construction of IECQ type designation (ordering information) . 8
2.3 Coil data . 9
2.4 Contact data . 9
2.5 Mounting. 10
2.6 Environmental data. 10
2.7 Package of relays for automatic handling (if applicable). 11
3 Qualification approval procedures . 11
4 Quality conformance inspection. 11
4.1 Formation of inspection lots. 11
4.2 Intervals between tests . 11
5 Marking and documentation . 11
5.1  Marking of the relay. 11
5.2  Marking of the package . 12
5.3  Documentation . 12
6 Annexes. 12
7 Tests. 12
7.1 Standard conditions for testing. 12
7.2 Mounting of test specimens during the test . 12
7.3 General conditions for testing . 12
8 Ordering information . 12

9 Relay reliability – Failure rate data [optional] . 12
Table 1 – Dielectric test voltages. 8
Table 2 – Coil data. 9
Table 3 – Loads, contact-circuit resistance limits, switching cycles and frequencies for
electrical endurance and overload tests . 9
Table 4 – Quality conformance inspection . 13
Table 5 – Qualification approval . 27
Table 6 – Industrial qualification . 29

Copyright  2000:IEC – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
ELETROMECHANICAL ALL-OR-NOTHING RELAYS –

Part 55: Blank detail specification –

Electromechanical all-or-nothing telecom relays of assessed quality –

Two change-over contacts, 11 mm ×× 7,5 mm (max.) base
××
FOREWORD
A PAS is a technical specification not fulfilling the requirements for a standard, but made available to
the public.
IEC-PAS 61811-55 has been processed by IEC technical committee 94: All-or-nothing electrical relays.
The text of this PAS is based on the This PAS was approved for
following document: publication by the P-members of the
committee concerned as indicated in
the following document:
Draft PAS Report on voting
94/108/PAS 94/109/RVD
Following publication of this PAS, the technical committee or subcommittee concerned will investigate
the possibility of transforming the PAS into an International Standard.
The QC number that appears on the front cover of this publication is the specification number in the IEC
Quality Assessment System for Electronic Components (IECQ).
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization
for Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form

of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this PAS may be the subject of patent rights.
The IEC shall not be held responsible for identifying any or all such patent rights.

– 4 – Copyright  2000:IEC
ELECTROMECHANICAL ALL-OR-NOTHING RELAYS –

Part 55: Blank detail specification –

Electromechanical all-or-nothing telecom relays of

assessed quality –
Two change-over contacts, 11 mm × 7,5 mm (max.) base

1 General
1.1 Scope
This part of IEC 61811 is a blank detail specification applicable to electromechanical all-or-
nothing telecom relays of assessed quality. Relays according to this standard are provided for
the operation in telecommunication applications. However, as electromechanical all-or-nothing
relays they are also suitable for particular industrial and other applications.
This standard selects from IEC 61810-7 and other sources the appropriate methods of test to
be used in detail specifications derived from this specification, and contains basic test
schedules to be used in the preparation of such specifications in accordance with
IEC 61811-1.
Detailed test schedules are contained in the detail specifications supplementary to this
specification.
1.2 References
IEC 60068-1:1988, Environmental testing – Part 1: General and guidance
Amendment No. 1 (1992)
IEC 60068-2-17:1994, Environmental testing – Part 2: Tests: Test Q: Sealing
IEC 60068-2-20:1979, Environmental testing – Part 2: Tests: Test T: Soldering
Amendment No. 2 (1987)
IEC 60068-2-47:1982, Environmental testing – Part 2: Tests: Test: Mounting of components,
equipment and other articles for dynamic tests including shock (Ea), bump (Eb), vibration (Fc
and Fd) and steady-state acceleration (Ga) and guidance
IEC 60255-14:1981, Electrical relays – Part 14: Endurance test for electrical relay contacts –
Preferred values for contact loads

IEC 60695-2-2:1991, Fire hazard testing – Part 2: Test methods – Section 2: Needle-flame test
IEC 61709:1996, Electronic components – Reliability – Reference conditions for failure rates
and stress models for conversion
IEC 61810-7:1997, Electromechanical all-or-nothing relays – Part 7: Test and measurement
procedures
IEC 61811-1:1999, Electromechanical non-specified time all-or-nothing relays of assessed
quality – Part 1: Generic specification
IEC 61811-50:1997, Electromechanical all-or-nothing relays – Part 50: Sectional specification –
Electromechanical all-or-nothing telecom relays of assessed quality

Copyright  2000:IEC – 5 –
QC 001002-1:1998, IEC Quality Assessment System for Electronic Components (IECQ) –
Rules of Procedure – Part 1: Administration

QC 001002-2:1998, IEC Quality Assessment System for Electronic Components (IECQ) –
Rules of Procedure – Part 2: Documentation

QC 001002-3:1998, IEC Quality Assessment System for Electronic Components (IECQ) –
Rules of Procedure – Part 3: Approval procedures

QC 001005:1996, Register of Firms, Products and Services approved under the IECQ System,
including ISO 9000
CECC 00802:1990, Guidance document: CECC Standard method for the specification of
surface mounting components (SMDs) of assessed quality
(National authorized institutions will complete this clause by making reference to any
documents or specifications directly referred to in their national equivalent of this standard.)

– 6 – Copyright  2000:IEC
1.3 Front page of detail specification

The layout of the front page of detail specification is as follows.

(1) QC xxxxxx (2)
Issue:
Page 1 of
Electronic components of assessed (3) (4)

quality in accordance with:
IEC 61810-7: 1997
IEC 61811-1: 1999
IEC 61811-50: 200X
Detail specification for electromechanical all-or-nothing telecom relays of assessed quality,

two change-over contacts, with 11 mm x 7,5 mm (max.) base

Type: . two change-over contacts (5)

Construction: dual-in-line, with 11 mm × 7,5 mm (max.) base (6)
plastic sealed case, overall height of 6 mm max.
for assembling techniques of printed circuit boards using mounting
holes and soldering or for surface mounting technology (as applicable)
max. 11 max. 7,5
(7) Application: (8)
Relays according to this standard are provided for the
Dimensions in mm
operation in telecommunication applications. However, as
printed circuit board relays they are suitable also for
Recommended
control or switching functions in particular industrial and
pad layout other applications.
3,2 2,2 2,2
5,08
max.1 max.1
Through-hole type
max.1 max.1
max. 11 max. 7,5
3,2 2,22,2
max. 8,5
3,2 2,22,2
max.1 max.1
max. 11 max. 7,5
max.1
max.1
3,2 2,22,2
min. 2,8
3,2 2,22,2
Coplanarity of SMT leads 0,1 mm max
Surface mounting types
Monostable Latching
(Deenergized condition) (Reset condition)
1+ 2 3 4
1+ 2 3 4
8- 7 6 8- 7 6 5
Wiring diagram - Bottom view
Note – Drawings are examples ; the maximum
outer dimensions, the wiring diagram of coil

relay, the terminal arrangement and the same
orientation of all rectangular terminals are
mandatory.
Coil data (9)
Rated voltages: 1,5 . 12 V d.c.
Rated power: 140 / 100 mW
Contact data (10)
Change-over break-before-make contacts
Rated contact voltage: 120 V d.c. / 125 V a.c.
Rated contact current: 1 A max
Rated contact power: 30 W / 30 VA
Limiting continuous current: 1 A max
Component climatic category according to IEC 60068-1: 25/70/21 (11)
Temperature range – operating ambient temperature: –25 °C to +70 °C
– storage temperature: –40 °C to +85 °C
Information about manufacturers who have components qualified according to this detail specification is available in the
current QC 001005.
max. 6 max. 3,8 max. 6
max. 6
min.4
min.2,5
max. 7,5 max. 9,4
Copyright  2000:IEC – 7 –
Key to front page
The numbers between brackets of the front page correspond to the following indications which
should be given.
Identification of the detail specification

(1) The name of the national standards organization under whose authority the detail

specification is published and, if applicable, the organization from which the detail

specification is available.
(2) The IECQ symbol and the number allotted to the completed detail specification by the

IECQ secretariat.
(3) The number and the year of availability of the IEC standard concerning test and
measurement procedures for electromechanical all-or-nothing relays and/or sectional
specification; also national reference, if different.
(4) If d
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