The Siemens 3RT1054 contactor from the SIRIUS 3RT1 series is a high-capacity industrial switching device engineered for demanding motor control and power distribution applications. It is designed to handle 55kW motors at 400V (AC-3 duty), making it suitable for heavy-duty industrial operations.
With a rated operational current of approximately 115A (AC-3), this contactor ensures efficient and stable switching of large motors, compressors, pumps, and industrial machinery.
The contactor features a 110–127V AC control coil, ensuring reliable actuation and compatibility with standard control circuits. It is configured as a 3-pole (3NO) contactor and typically includes 2NO + 2NC auxiliary contacts, allowing flexible integration into automation and protection systems.
Built with Siemens SIRIUS technology, the device offers high mechanical durability and long electrical life, making it ideal for frequent switching applications. Its Size S6 frame and robust construction allow easy installation in industrial panels and switchgear assemblies.
This contactor is widely used across industries such as manufacturing, HVAC, infrastructure, and power distribution systems where high reliability and performance are critical.
