Siemens Sirius 3RF2 Solid-State Contactor

Solid-state contactor 1-phase 3RF2 AC 51 / 20 A / 40°C 48-460 V / 4-30 V DC screw terminal semiconductor contactor SIRIUS 3RF23 for switching resistive/inductive loads, e.g., of heating elements or valves in a bottling plant. Units are wear-free and silent, making them ideal for noise-sensitive areas (offices, hospitals). They are also extremely reliable at high switching frequencies. As the heat sink is already integrated, they can be used directly in the control panel. The compact design saves space on the DIN rail. Solid-state contactors can also be expanded for a wide range of applications by simply clicking on standardized 3RF29 function modules. Units are approved for worldwide use (e.g., IEC and UL/CSA). Solid-state contactors are available as single-phase or three-phase units. They are available for various nominal power and operating voltages. They are designed for AC or DC operation and available with screw, spring, or ring lug terminals. Besides the 3RF29 function modules, control plugs and terminal covers are also available as accessories. Simple, efficient, and always up-to-date - SIRIUS modular system.