Siemens Sirius 3RF21 Semiconductor Relay 24 - 230 V AC

Switches at zero crossing for resistive loads. Functionality can extended using function modules. Touch-safe without accessories (IP20 protection class). High-power thyristors with high reverse voltage. Industrial connection technology for quick and convenient connection. DCB technology for optimised heat transfer. Compact, with control connectors. Approvals: IEC, UL/CSA, CE.