Schneider REL52039 Easergy P3U20 Protection Relay Unit

Feature & Principle

This numerical relay collects CT and PT signals, executes overload, overcurrent, earth fault and breaker failure protection functions. It can trigger trip output when fault occurs, record fault waveforms, exchange data with SCADA system via RS485 Modbus RTU, and realize local parameter setting and alarm viewing through front panel HMI.

Specifications

Model: REL52039 (P3U20-6AAA2ABAA) Brand: Schneider Electric Series: Easergy P3 Auxiliary power: 48~230V AC/DC DI voltage: 110~230V I/O: 10 digital inputs, 5 digital outputs Communication: RS485 Modbus RTU Current input: 4L ring lug type Voltage input: 1U Mounting: Panel flush mount Certification: IEC60255, CE

Components & Diagnostics

CPU acquisition board, input/output module, power supply unit, local display HMI, RS485 communication interface. Common faults: measurement deviation, self-test alarm, RS485 communication interruption, DI/DO channel failure.

Product Brief

REL52039 feeder protection IED, Schneider substation automation spare widely used for industrial and utility medium voltage feeder protection cabinet renovation and maintenance.