The Omron G7J-4A-B-W1-AC200/240 is an enclosed power relay from the G7J Series, bracket-mounted with screw terminals. Its 4PST-NO contact form carries 25 A at 240 V AC on the normally-open poles, while the NC poles are rated 8 A at the same voltage — a split that matters if you're using the NC leg for a safety interlock or auxiliary drop-out signal. The coil pulls in on 200/240 V AC; there's no DC coil variant in this housing, so verify your control voltage before wiring.
Bracket mounting bolts directly to a panel. Screw terminals accept up to 10 wires. Dielectric strength is 4,000 V AC between coil and contacts, and 2,000 V AC between same-polarity contacts. The manual push-to-test button cycles contacts without energizing the coil.