Siemens SIRIUS 3RT Contactor, 400 V Coil, 3-Pole, 21 A, 18.5 kW, 1 NO, 690 V

The Siemens power contactor is engineered for high-performance applications, delivering exceptional reliability and efficiency in demanding environments. With a three-pole design, it accommodates operational voltages up to 690 V, making it suitable for various industrial needs. The unit features advanced insulation and surge voltage resistance, ensuring robust performance under stress. Designed with multiple operational currents and switching capacities, it excels in handling various motor types. Built for durability, this contactor offers a mechanical service life of up to 10 million cycles, providing peace of mind for continuous operation. Its compact dimensions and versatile mounting options further enhance its fit into any system architecture, making it a staple in modern automation solutions.

Suitable for temperatures from -25 °C to +60 °C
Mechanical service life up to 10 million cycles
Efficient power loss management under rated conditions
Spring-loaded terminals for reliable connections