Industrial electromagnetic relays are essential in power automation, signaling controls, safety systems, and control and electric drives systems. They come in contact configurations like DPDT, 3PDT, and 4PDT, with built-in LED light indicator. They support DC coil voltages from 5VDC to 220V DC and AC coil voltages from 6VAC to 240V AC at 50/60 Hz. They are approved for railroad applications, compatible with Din Rail Plug in Sockets, and comply with UL and CSA standards.