Power contactor, AC-3e/AC-3, 9 A, 4 kW / 400 V, 3-pole, DC 24 V, 0.85-1.85* US, with integrated diode, auxiliary contacts: 1 NC, spring-loaded terminal, size: S00, cannot be expanded with auxiliary switch _ Coupling contactor SIRIUS 3RT2 for switching motors and auxiliary and control circuits, specially designed for direct connection to electronic controls. The 3RT2 contactors are part of the SIRIUS modular system with its optimally coordinated products. They impress with their high performance combined with a compact design and high contact reliability. They can be combined in many ways with other components in the load feeder. Many of the device combinations are factory-tested. Integrated auxiliary switches reduce the complexity of your setup. The front connections enable easy wiring. The 3RT2 contactors are climate-resistant, approved worldwide (e.g. IEC and UL/CSA) and IE3/IE4 ready. In addition to screw connection technology, the devices are also available with spring-loaded connections for a quick, maintenance-free and vibration-proof connection. Simple, efficient, always up-to-date - the SIRIUS modular system.