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BS EN 3774-006:2023 2024

BS EN 3774-006:2023 2024

$102.76

Aerospace series. Circuit breakers, three-poles, temperature compensated, rated currents 1 A to 25 A – 6,3 blade terminal. Product standard

Published By Publication Date Number of Pages
BSI 2024 18
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This document 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 āˆ’55 Ā°C and 125 Ā°C for ratings ā‰¤ 15 A and āˆ’55 Ā°C to 90 Ā°C for ratings > 15 A and 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
2 undefined
6 1 Scope
2 Normative references
3 Terms and definitions
4 Dimensions and mass
4.1 Dimensional characteristics
9 4.2 Electrical diagram
4.3 Mass
4.4 Panel mounting
10 5 Characteristics (see EN 3774-001 for the panel mounting)
5.1 Material, surface treatment
5.2 Mechanical characteristics
5.2.1 Fasteners
5.2.2 Recommended tightening torque of attaching nut for installation
5.2.3 Tensile load of terminals
5.2.4 Resistance to vibrations
5.2.4.1 Combined test: ambient temperature at 70 Ā°C and vibrations
5.2.4.2 Combined test: ambient temperature at 85 Ā°C, altitude and vibrations
5.2.5 Resistance to shocks
11 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
5.4 Electrical characteristics
5.4.1 Nominal voltage of operational circuits
5.4.2 Voltage drop at In and low current
12 5.4.3 Minimum and maximum tripping thresholds
5.4.4 Overload trip
13 5.4.5 Short-circuit values
5.4.6 No-load and load endurance
14 5.4.7 Dielectric rigidity
5.4.8 Insulation resistance
6 Designation
6.1 Product designation
15 6.2 Procurement designation
7 Rated current code
8 Delivery hardware codes
16 9 Marking
10 Technical specification

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BS EN 3774-006:2023 2024
$102.76