Crouzet Monitor - Relay Output PWRA220A

The PWRA220A is a DIN-rail mounting phase control relay for three-phase power monitoring, detecting phase sequence errors and loss of any phase, even with induced voltages up to 95% of nominal. It features an SPDT 10 A AgCdO relay output with 250 VAC/DC switching capability, 220 VA resistive load rating, and a mechanical life of 30 million operations. Operating voltage is 3 × 220 VAC at 60 Hz with ±15% tolerance, consuming 3 VA. The device includes an LED status indicator, adjustable alarm threshold between 5% and 15% phase asymmetry, and a response time of 100 ms for phase loss. It operates from −10°C to +60°C and weighs 200 g. UL listed and CSA recognized for the 220 VAC version.