Siemens SENTRON 3WL10 - Page 108

Accessories
3.2 Electromechanical accessories
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
106 Manual, 10/2018, L1V30499596002-01
Position signaling switch PSS for guide frame
The position auxiliary contacts are used in the withdrawable breaker and signal whether the
circuit breaker is in the racking position DISCONNECT, Test, or CONNECT.
Breaker position
Auxiliary contacts
Main circuit connection
CONNECT: Inserted
Connected
Connected
TEST: Test position Connected Isolated
DISCON (DISCONNECT): Re-
moved
Disconnected Isolated
The position signaling switches are always installed in the guide frame. However, the user
can modify 24 V digital signals in the device configuration to meet the requirements for small
loads, e.g. for PLC connection.
Configuration
Position auxiliary contacts - PSS
6 auxiliary contacts
Standard contact 400 V
•
Contact for digital signal 24 V
•
Standard contact
Contact for digital signal
Type Changeover contact Changeover contact
Smallest load
100 mA at 24 V
1 mA at 5 V
Breaking capacity DC
24 V
—
0.1 A
125 V
0.3 A at 0 ms
—
250 V
0.15 A at 0 ms
—
AC 250 V
5 A at cosφ 1
—
5 A at cosφ 0.7
—
5 A at cosφ 0.3
—
400 V
3 A at cosφ 1
—
2 A at cosφ 0.7
—
1 A at cosφ 0.3
—
Signaling diagram of the position signaling switch PSS: