Carlo Gavazzi RA4825-D12FS18 Solid State Relay

RA4825-D12FS18 is a Carlo Gavazzi solid-state relay (one-pole, SPST-NO) in the RA48 family that provides a 25 A load current for AC control with zero-cross switching to reduce EMI. It switches a load rated for 42 to 530 VAC (1200 Vp) and accepts a DC control signal of 3 to 32 V, enabling interface with standard PLC outputs or automation controllers. The device is designed for panel-mount installation with screw-terminal connections and delivers a compact footprint suitable for compact control panels. This model operates as a 1 Form A (SPST-NO) relay, intended for single-phase AC switching, with the input and output isolated for safe integration into automation circuits. With typical body dimensions around 44.5 mm wide by 57.8 mm tall and about 24.5 mm deep, it can be paired with appropriate heatsinking when driving near the upper end of its 25 A rating. Applications include switching AC heaters, control of fans or pumps in industrial automation, and other load-control tasks where solid-state reliability and fast switching are advantageous.