Siemens 3WJ ACB
Accessories – Electronic Trip Unit Cover – 3WJ9111-0AG04
The Siemens 3WJ9111-0AG04 is an auxiliary switch
block accessory designed for SENTRON 3WJ Air Circuit Breakers (ACB).
It is used in conjunction with the electronic trip unit (ETU) system,
providing reliable signal transmission for breaker status indication and
control functions.
This accessory plays a key role in monitoring and control
of ACB operations, ensuring accurate feedback of breaker positions and
helping maintain safe and efficient operation in LT switchboards, industrial
power distribution systems, and critical infrastructure panels.
Built with Siemens precision engineering, it ensures high reliability, safe electrical isolation, and long operational life in demanding electrical environments.
Key Features
| Parameter | Specification |
|---|---|
| Product Series | Siemens SENTRON 3VJ |
| Part Number | 3VJ1216-7EB42-0AA0 |
| Product Type | MCCB (Molded Case Circuit Breaker) |
| Number of Poles | 4 Pole |
| Rated Current (In) | 160A |
| Trip Unit Type | Thermal Magnetic (ATFM) |
| Overload Protection | Adjustable (128–160A) |
| Short Circuit Protection | Fixed Magnetic |
| Breaking Capacity (Icu) | 55kA at 415V AC |
| Frame Size | 3VJ12 / 250A Class |
| Rated Operational Voltage | 415V AC |
| Mounting Type | Fixed Mounting |
| Connection Type | Screw Terminal |
| Standard Compliance | IEC 60947-2 |
| Frequency | 50/60 Hz |
| Application | LT Panels, PCC Panels, MCC Systems, Feeder Protection, Industrial Power Distribution |
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