The Omron G3PA-420B-VD DC12-24 is a solid state relay (SSR) purpose-built for heater control, switching loads from 200 to 480 VAC (50/60 Hz) with a control input of 12 to 24 VDC. The output ON voltage drop is 1.8 V (RMS) max, which is typical for a zero-crossing SSR and means minimal heat dissipation in the semiconductor when the load is on.
Application fit
Rated for heater loads, the G3PA-420B-VD DC12-24 is designed to handle the inrush current of cold resistive elements without derating. The 200-480 VAC range covers common single-phase and three-phase heater circuits in industrial ovens, packaging seal bars, and plastic welding equipment. The 12-24 VDC control input is compatible with standard PLC digital outputs and temperature controller alarm relays. Dimensions of 11.4 cm x 2.25 cm x 9.9 cm allow DIN-rail mounting in a standard panel layout.