20553-81 is a 5-amp general-purpose plug-in relay from the 160 Series featuring a 3PDT (triple-pole double-throw) contact configuration with a flanged cover and quick-connect terminals. The relay is equipped with Class F coil insulation rated for 155°C total temperature and a coil molded in Rynite® PET for environmental protection. It supports multiple AC coil voltages (24 VAC, 120 VAC, 240 VAC) and DC coil voltages (12 VDC, 24 VDC, 110 VDC), with typical operate and release times of approximately 15 milliseconds. The relay is designed for industrial machine control, energy management systems, and control panels, offering reliable switching performance across a wide operating ambient temperature range of -45°C to 55°C for AC operation.