The Siemens 3RT2047-1A contactor from the advanced SIRIUS 3RT2 series is a heavy-duty industrial switching device engineered for high-performance motor control and power distribution applications.
Designed for AC-3 duty up to 110A, this contactor is suitable for controlling motors up to 55kW at 400V, making it ideal for demanding applications such as compressors, pumps, conveyors, and large industrial machinery.
It features a 110V AC control coil, ensuring reliable switching performance in standard industrial control circuits. The contactor is built as a 3-pole configuration and typically comes with 1NO + 1NC auxiliary contacts, enabling flexible integration into control, interlocking, and signaling systems.
Constructed with Siemens SIRIUS technology, the 3RT2 series offers enhanced electrical endurance, compact design, and improved efficiency compared to older 3RT1 models. The Size S3 frame ensures easy installation in control panels, while maintaining high reliability under frequent switching conditions.
This contactor is widely used across industries such as manufacturing, HVAC, infrastructure, and automation systems where consistent and safe motor control is critical.
