The Omron G3PE-525B DC12-24 is a single-phase solid-state relay from the G3PE series, switching loads from 180 to 528 VAC using a 9.6 to 30 VDC control input that draws just 7 mA. The switching element is a phototriac, so expect zero-contact bounce and a 1 msec response time — fast enough for cycling heater banks or motor starters where mechanical relays would wear out. Heat sink is included, which saves panel space and eliminates a separate sizing step.
Mounts on DIN rail or panel surface via the screw terminals. Body is 0.88 in wide — about one standard DIN module — so it fits tight rail rows. The status indicator is equipped, which helps commissioning: you see the control state without a meter.