SS-EN-3774-004 Aerospace series - Circuit breakers, three-pole, temperature compensated, rated currents 1 A to 25 A - Part 004: UNC thread terminals - Product standard

SS-EN-3774-004 - 2014 EDITION - CURRENT
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This European Standard specifies the characteristics of three-pole circuit breakers, temperature compensated with a rated current from 1 A to 25 A, used in aircraft on-board circuits at a temperature between - 55 °C and 125 °C for ratings ≤ 15 A and - 55 °C to 90 °C for ratings > 15 A and at an altitude of 22 000 m max. These circuit breakers are operated by a push-pull type single pushbutton (actuator), with delayed action 'trip-free' tripping. They will continue to function up to the short-circuit current.

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49.060 (Aerospace electric equipment and systems Including Avionics)

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Designation Name

SS-EN 3774-004:2014

Revision Level




Publication Date

Aug. 3, 2014



Page Count


International Equivalent

EN 3774-004:2014(IDT)