IS 9174 : 1979 Dimensions for Single-hole Mounted Lever-operated Switches for Aircraft

1 Scope

1.1 This standard specifies the overall dimensions for two classes of singlehole mounting (class 1 and class 2) lever operated switches for use in 28 V dcand 115/200 V ac, 3-phase, 400 HZ systems in aircraft. Class 1 switches aresealed and are suitable for higher altitudes and temperature conditions. Class 2switches are sealed only at the lever entry.

2 References

IS 2 : 1960  Rules for rounding off numerical values