SIST EN 2665-003:2002

Aerospace series - Circuit breakers, three-pole, temperature compensated, rated currents 20 A to 50 A - Part 003: Metric thread terminals - Product standard

This standard specifies the required characteristics for three-pole, temperature compensated circuit breakers, rated currents from 20 A to 50 A, metric thread terminals, for use in aircraft electrical systems, at temperatures between - 55°C and 90°C and at a maximum altitude of Z = 15 000 m. It shall be used together with EN 2665-001. These circuit breakers are intended for use in aircraft with electrical supplies in accordance with EN 2282.

Luft- und Raumfahrt - Schutzschalter, dreipolig, temperaturkompensiert, Nennströme von 20 A bis 50 A - Teil 003: Metrisches Klemmengewinde - Produktnorm

Diese Norm legt die Anforderungen an temperaturkompensierte, dreipolige Schutzschalter mit Nennströmen von 20 A bis 50 A und metrischem Klemmengewinde für den Einsatz in elektrischen Bordnetzen im Temperaturbereich zwischen - 55°C und 90°C bis zu einer Höhe von Z = 15 000 m fest. Sie ist in Verbindung mit EN 2665-001 anzuwenden. Diese Schutzschalter sind zum Einsatz in Luftfahrzeugen mit elektrischer Stromversorgung nach EN 2282 bestimmt.

Série aérospatiale - Disjoncteurs tripolaires compensés en température, intensités nominales 20 A a 50 A - Partie 003: Bornes a filetage métrique - Norme de produit

La présente norme spécifie les caractéristiques requises des disjoncteurs tripolaires compensés en température, d'intensités nominales 20 A à 50 A, bornes à filetage métrique, utilisés dans les circuits électriques d'aéronefs, à des températures comprises entre - 55°C et 90°C et à une altitude maximale Z = 15 000 m. Elle doit être utilisée conjointement avec EN 2665-001. Ces disjoncteurs sont prévus pour être utilisés avec des alimentations électriques définies par EN 2282.

Aerospace series - Circuit breakers, three-pole, temperature compensated, rated currents 20 A to 50 A - Part 003: Metric thread terminals - Product standard

General Information

• Status: Published
• Publication Date: 31-Dec-2001
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jan-2002
• Due Date: 01-Jan-2002
• Completion Date: 01-Jan-2002
• Ref Project: EN 2665-003:1999 - Aerospace series - Circuit breakers, three-pole, temperature compensated, rated currents 20 A to 50 A - Part 003: Metric thread terminals - Product standard

Overview

SIST EN 2665-003:2002 is a critical aerospace standard that defines the product requirements for three-pole, temperature compensated circuit breakers with rated currents ranging from 20 A to 50 A. These circuit breakers feature metric thread terminals and are specifically designed for use in aircraft electrical systems operating under extreme environmental conditions. The standard ensures reliable performance at temperatures from -55°C to 90°C and at altitudes up to 15,000 meters.

Issued by CEN (European Committee for Standardization), SIST EN 2665-003:2002 complements EN 2665-001 and must be used together with it. This standard supports the electrical supply requirements outlined in EN 2282, ensuring consistency and safety in aerospace electrical components.

Key Topics

• Three-pole circuit breakers: Designed for three-phase aircraft electrical systems providing reliable overload and fault protection.
• Temperature compensation: Circuit breakers maintain optimal performance despite wide temperature fluctuations typical in aircraft environments.
• Rated current range: Covers devices rated between 20 A and 50 A, suitable for various onboard electrical loads.
• Metric thread terminals: Standardized terminal connections use metric threads for secure, durable electrical connections.
• Environmental operating conditions: Certified for use at temperatures from -55°C to 90°C and altitudes reaching 15,000 meters, ensuring safety and reliability in high-altitude aviation.
• Compatibility: Intended for use in aircraft electrical systems compliant with EN 2282, promoting interoperability and standardization across aerospace systems.

Applications

SIST EN 2665-003:2002 circuit breakers are integral components in aircraft electrical distribution and protection systems. Key applications include:

• Power distribution panels for commercial and military aircraft.
• Electrical protection for avionics and critical onboard systems.
• High-reliability electrical switching devices within aerospace equipment.
• Retrofit and new-design aircraft electrical installations requiring compliance with international safety standards.

Their ability to perform under extreme temperature ranges and high altitudes makes these circuit breakers suitable for use in commercial airliners, helicopters, and other aeronautical vehicles operating in diverse environmental conditions.

Related Standards

• EN 2665-001: General requirements and characteristics for aerospace circuit breakers, used in conjunction with EN 2665-003.
• EN 2282: Defines electrical power supply standards for aircraft systems, ensuring compatibility with the circuit breakers specified in EN 2665-003.
• Other Aerospace Electrical Standards: EN 2665 series forms part of a broader set of standards ensuring electrical safety, reliability, and interoperability within aerospace systems.

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Keywords: EN 2665-003, aerospace circuit breakers, three-pole circuit breaker, temperature compensated circuit breakers, metric thread terminals, aircraft electrical systems, aviation electrical standards, high altitude circuit breakers, aerospace electrical components, CEN standards.

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2002
Aerospace series - Circuit breakers, three-pole, temperature compensated, rated
currents 20 A to 50 A - Part 003: Metric thread terminals - Product standard
Aerospace series - Circuit breakers, three-pole, temperature compensated, rated
currents 20 A to 50 A - Part 003: Metric thread terminals - Product standard
Luft- und Raumfahrt - Schutzschalter, dreipolig, temperaturkompensiert, Nennströme von
20 A bis 50 A - Teil 003: Metrisches Klemmengewinde - Produktnorm
Série aérospatiale - Disjoncteurs tripolaires compensés en température, intensités
nominales 20 A a 50 A - Partie 003: Bornes a filetage métrique - Norme de produit
Ta slovenski standard je istoveten z: EN 2665-003:1999
ICS:
49.060 /HWDOVNDLQYHVROMVND Aerospace electric
HOHNWU
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