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Norm

ISO 3456:1975

Issue date: 1975 12 01

Aircraft — Lever-operated manual switches (Class 3) — Performance requirements

Specifies the values for single- and triple-hole mounting of these switches for use in nominal 28 V d. c. and 115/200 V three-phase, 400 Hz a. c. systems. They are enviro...
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Valid
Publisher:
International Organization for Standardization
Format:
Digital | 6 Pages
Language:
English
ICS
49.060
Topics
Electric & lighting engineering, Aircraft and space vehicle engineering - Electric equipment, Aerospace electric equipment and systems

Specifies the values for single- and triple-hole mounting of these switches for use in nominal 28 V d. c. and 115/200 V three-phase, 400 Hz a. c. systems. They are environmentally sealed and suitable for higher altitude and temperature conditions than are Class 2 switches which are sealed only at the lever entry. They do not have the positive action features of the Class 1 and Class 2 switches specified in ISO 1466.