Aerospace series. Circuit breakers, single-pole, temperature compensated, rated current 20 A to 50 A - Technical specification1 Scope This standard specifies the single pole temperature compensated circuit breakers with signal contacts, polarized or not, rated from 20 A to 50 A and used in aircraft on board circuits. It describes specific environmental, electrical and mechanical characteristics and the stringency of tests to be applied according to test methods of EN 3841100. These circuit breakers are intended for use in aircraft with electrical supplies in accordance with

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2 -7 test 13a 13b Insertion and withdrawal forces -13-2 -7 test 13b 13c withdrawn   -7 test 13c 13d withdrawn   -7 test 13d 13e Polarizing and keying method 13-5 -7 test 13e           Part 14: Sealing tests     14a (Vacant)     14b Sealing -Fine air leakage -14-2 -7 test 14b 14c (Vacant)     14d Immersion- Waterproof -14-4 -7 test 14d 14e Immersion at low air pressure -14–5 -7 test 14e 14f Interfacial sealing -14-6 -7 test 14f 14g Impacting water -14-7 none           Part 15: Connector tests (mechanical)     15a Contact retention in insert -15-1 -8 test 15a 15b Insert retention in housing (axial) -15-2 -8 test 15b 15c Insert retention in housing (torsional) -15-3 -8 test 15c 15d Contact insertion

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