This standard was last reviewed and confirmed in 2023. Therefore this version remains current.
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.
Status: PublishedPublication date: 1975-12
Edition: 1Number of pages: 6
Technical Committee: ISO/TC 20/SC 1 Aerospace electrical requirements
- ICS :
- 49.060 Aerospace electric equipment and systems
This standard contributes to the following Sustainable Development Goal:
Buy this standard
|std 1 40|
|std 2 40||Paper|
A standard is reviewed every 5 years
Stage: 90.93 (Confirmed)
Got a question?
Check out our FAQs
+41 22 749 08 88
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)
Keep up to date with ISO
Sign up to our newsletter for the latest news, views and product information.