Product Analysis: 3RV1901-1E
The Siemens 3RV1901-1E is a **Transverse Auxiliary Switch** block designed for the SIRIUS 3RV1 and 3RV2 motor starter protectors (circuit breakers). Unlike lateral switches, this block mounts on the front face of the breaker, saving valuable width on the DIN rail.
Specifications
| Contacts | 1 NO + 1 NC |
| Mounting Position | Front (Transverse) |
| Connection | Screw Terminals |
Usage
The **3RV1901-1E** provides status feedback (Open/Closed) to the PLC or control logic. It trips simultaneously with the main contacts. Essential for monitoring critical motor circuits in automation panels.
