Siemens 3WJ ACB Accessories – Electronic Trip Unit Signal
Module – 3WJ9111-0AH11
The Siemens 3WJ9111-0AH11 is a position signalling
switch module accessory designed for SENTRON 3WJ Air Circuit Breakers
(ACB). It provides accurate breaker position status indication,
including Connected, Test, and Disconnected positions, ensuring safe
monitoring and control of the breaker operation in low-voltage switchgear
systems.
This accessory is essential for industrial power
distribution, commercial switchboards, data centers, and critical
infrastructure applications, where real-time breaker status feedback is
required for safe and reliable operation.
It enhances system safety by ensuring that operators and
control systems always receive correct status signals before switching or
maintenance operations.
🔹 Key Features
|
Parameter |
Specification |
|
Product Series |
Siemens SENTRON 3WJ |
|
Part Number |
3WJ9111-0AH11 |
|
Product Type |
ACB Accessory (Position Signalling Switch Module) |
|
Application |
Air Circuit Breaker status indication |
|
Compatible System |
Siemens 3WJ ACB |
|
Function |
Position monitoring (Connected / Test / Disconnected) |
|
Contact Configuration |
Multiple position contacts (3-position indication) |
|
Mounting Type |
Plug-in modular accessory |
|
Material / Design |
Industrial-grade switchgear component |
|
Standards |
IEC 60947 |
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