DPR175A

DPR175A is a 3-phase voltage monitoring relay. It is a high-performance voltage and phase monitoring relay designed to protect industrial machinery, motors, and pumps against premature equipment failure caused by unbalanced voltages or single phasing, regardless of any regenerative voltages, on three-phase systems. The relay monitors phase sequence, under voltage, over voltage and phase loss for three-phase three-wire 230VAC nominal (170 to 290VAC supply voltage range) operation and is designed for direct compatibility with most 3 phase 3 wire Wye or delta systems. It comes standard in a slim, space-saving 17.5mm DIN housing with a 5amp SPDT relay output contact configuration. It is easily configured via front knobs for under voltage, over voltage and trip delay. It is also used in applications such as OEM equipment, motor protection applications, pump protection applications, industrial machinery.

• 3-phase-3 wire input, DIN rail mount
• Monitors, phase sequence, undervoltage, overvoltage
• Trip delay (T) is -0.2 to 10sec, slim, space saving design
• Accuracy is ±0.5% of F.S. (F.S. = full scale), auto reset on removal of fault condition
• SPDT (1C/O) output contact, N/O:5A, N/C:3A at 250VAC contact rating
• Undervoltage range from 170 to 224VAC, over voltage from 236 to 290VAC
• Trip delay is 0.2 to 10sec, 400msec power ON delay
• 8VA max power consumption, 170 to 290VAC operating voltage
• IP50 for faceplate, IP40 for housing, IP20 for terminals protection
• Operating temperature range from 0°C to 50°C