Siemens 3RF2370-3AA06 3 Pole AC Power Contactor

Siemens 3RF2370-3AA06 is a Siemens Indus.Sector solid-state contactor (3RF2 family) designed for DIN-rail mounting in control panels. This 1-pole SPST device switches single‑phase AC loads up to 70 A, with a nominal AC voltage range of 48–600 V and a blocking voltage of 1200 V, making it suitable for demanding automation tasks. The control coil is DC-driven across 4–30 V (typical 24 V DC), enabling compact, low‑power input from standard industrial DC supplies. Power connections use ring‑lug terminals for secure wiring, and the module is intended for mounting on standard 35 mm DIN rails. In hot operating state, the device dissipates approximately 83 W per pole at rated current, reflecting the heat generated when switching high‑current loads. This 3RF2 semiconductor relay family delivers fast, quiet switching with solid‑state reliability for applications such as machine controls, conveyors, heaters, and other automation panels where compact, dependable solid‑state switching is preferred over traditional relays. The 3RF2370-3AA06 is well suited for panel builders and system integrators seeking robust DC‑coil control of single‑phase AC circuits in industrial environments.