ISO 3456:1975

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

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ISO 3456:1975

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

PUBLISH DATE 1975
ISO 3456:1975

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.

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