Solid-state contactor 3-phase 3RF3 AC 53 / 7.4 A / 40 °C 48-480 V / 110-230 V AC reversing circuit instantaneous switching screw connection Solid-state reversing contactor SIRIUS 3RF34 for switching motors for frequent reversing, e.g. in conveyor technology. The devices switch wear-free and silently and are therefore ideal for noise-sensitive areas (offices, hospitals). The reversing contactors have an integrated lock. They are extremely reliable even at high switching frequencies. Since the heat sink is already integrated, they can be used directly in the control cabinet. The compact design saves space on the top-hat rail. The devices are approved worldwide (e.g. IEC and UL/CSA). The solid-state reversing contactors are available in two widths for different outputs. They are designed for AC or DC operation and are equipped with screw connections.Connection modules and adapters as well as identification plates are available as accessories.Simple, efficient, always up-to-date - the SIRIUS modular system.