Accessories
4.4 Accessory auxiliary switches and signaling switches
3WA1 air circuit breaker
274 Equipment Manual, 02/2023, 92310000002-06
4.4.6 Position signaling switch module for guide frame
4.4.6.1 Description
The position signaling switch modules (PSS COM) basically signal the current position of
the 3WA circuit breaker in the guide frame:
• CONNECT: Connected position
• TEST: Test position (main connections disconnected, auxiliary contacts connected)
• DISCONNECT: Disconnected position (main connections disconnected, auxiliary
contacts disconnected)
• ABSENT: Circuit breaker is not present in the guide frame, only for the PSS COM
version
One PSS and one PSS COM signaling switch can be used at a time. They can be ordered
from the factory preassembled or can be retrofit by the customer.
The position signaling switches are available in the following versions:
• PSS321 and PSS600 position signaling switch modules
1)
• PSS111 COM and PSS400 COM position signaling switch modules (for
communication-capable circuit breakers)
2)
1)
PSS600 position signaling switch module available from Q1/2023
2)
PSS400 COM position signaling switch module available from Q1/2023
PSS321 and PSS600 position signaling switch modules
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