Schneider P139-569040F4-314-421-653-461-947 Micom P139 Feeder Protection Relay Unit

Feature & Principle

This numerical protection relay collects current and voltage signals from CT/PT, executes overcurrent, earth fault, overvoltage, undervoltage protection logic. It realizes circuit breaker trip/close control, electrical parameter measurement, fault event recording, and upload data via IEC60870-5-103, Modbus communication to SCADA system.

Specifications

Model: P139-569040F4-314-421-653-461-947 Brand: Schneider Electric Series: Micom P139 Power supply: 80~250V AC/DC Communication protocol: IEC60870-5-103, Modbus Mounting: Panel flush mounting Display: Local LCD screen + operation keys Certification: IEC, CE, SIL

Components & Diagnostics

Signal acquisition board, main CPU board, LCD display module, relay output contact, communication interface. Common faults: signal sampling abnormal, communication disconnection, relay contact burnout, parameter loss.

Product Brief

P139 feeder protection relay, Schneider power automation spare widely used for industrial substation, municipal power distribution network medium voltage feeder protection.