Contactor, AC-3 50 A, 22 kW / 400 V 2 S + 2 Ö AC 48 V, 50/60 Hz 4-pole Size S2 Screw connection 1 S + 1 Ö integrated SIRIUS 3RT25 contactor for pole-changing with hoist motors or for switching two separate loads The 3RT25 contactors are part of the SIRIUS modular system with its optimally matched products. They impress with their high performance, compact design and high contact reliability. They can be combined with other components in the load feeder in a variety of ways. Many of the device combinations are factory tested. The contactors offer the optimum connection to the control system for every application (parallel, via ASi or IO-Link). Integrated auxiliary switches reduce the complexity of your set-up. The front connections enable simple wiring. The 3RT25 contactors are climate-proof and approved worldwide (e.g. IEC and UL/CSA) and are available in various sizes and in a wide power range with AC and DC actuation. In addition to screw connection technology, the devices are also available with spring-cage connection for fast, maintenance-free and vibration-proof connection.The comprehensive range of accessories, such as auxiliary switches, auxiliary releases, etc., is standardised for all sizes.Simple, efficient, always up-to-date - the SIRIUS modular system.