BS EN 2665-004:2013

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Aerospace series. Circuit breakers, three-pole, temperature compensated, rated current 20 A to 50 A – UNC thread terminals. Product standard

Published By	Publication Date	Number of Pages
BSI	2013	16

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Description

This European Standard specifies the characteristics of three -pole circuit breakers, temperature compensated with a rated current from 20 A to 50 A, used in aircraft on-board circuits at a temperature between – 55 °C and 90 °C at an altitude of 15 000 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.

PDF Catalog

PDF Pages	PDF Title
5	Foreword
6	1 Scope 2 Normative references 3 Terms and definitions 4 Dimensions and mass 4.1 Dimensional characteristics
8	4.2 Electrical diagram 4.3 Mass 4.4 Panel mounting 5 Characteristics 5.1 Material, surface treatment 5.2 Mechanical characteristics 5.2.1 Fasteners
9	5.2.2 Recommended tightening torque of attaching nut for installation 5.2.3 Recommended tightening torque of connection hardware for installation 5.2.4 Resistance to vibrations 5.2.4.1 Combined test: ambient temperature at 70 C and vibrations 5.2.4.2 Combined test: ambient temperature at 85 C, altitude and vibrations 5.2.5 Resistance to shocks 5.2.6 Mechanical endurance 5.3 Environment characteristics 5.3.1 Humidity 5.3.2 Corrosion 5.3.3 Contaminating liquids 5.3.4 Overvoltage caused by lightning
10	5.4 Electrical characteristics 5.4.1 Nominal voltage of operational circuits 5.4.2 Voltage drop at (n 5.4.3 Minimum and maximum tripping thresholds
11	5.4.4 Overload trip 5.4.5 Short-circuit values
12	5.4.6 No-load and load endurance 5.4.7 Dielectric rigidity 5.4.8 Insulation resistance
13	6 Designation 7 Rated current code 8 Delivery codes
14	9 Marking 10 Technical specification

Additional information

Status	Definitive
Pages	16
Publication Date	2013-12-31
ISBN	978 0 580 83444 8
Standard Number	BS EN 2665-004:2013
Title	Aerospace series. Circuit breakers, three-pole, temperature compensated, rated current 20 A to 50 A – UNC thread terminals. Product standard
Identical National Standard Of	EN 2665-004:2013
Replaces	BS EN 2665-004:1999
Descriptors	Dimensional tolerances, Electrical connections, Circuit-breakers, Lock washers, Tri-pole circuit-breakers, Hardness, Washers, Designations, Dimensions, Unified screw threads, Screws (bolts), Weight (mass), Rated current, Switchgear, Electric terminals, Short-circuit currents, Tensile strength, Aircraft components, Performance, Electrical equipment
Publisher	BSI
Committee	ACE/6
ICS Codes	49.060 - Aerospace electric equipment and systems

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BS EN 2665-004:2013

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