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ISO 3456:1975
New product
ISO 3456:1975 Aircraft - Lever-operated manual switches (Class 3) - Performance requirements
standard by International Organization for Standardization, 12/01/1975
More info
Full Description
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.