GE SR469‑P5‑HI‑A20‑E Motor Management Relay

Technical Specifications

Model: SR469‑P5‑HI‑A20‑E

Brand: GE Multilin (GE Vernova)

Product Type: Intelligent Motor Management Protection Relay

Applicable System: Medium‑large three‑phase induction & synchronous motor protection system

CT Secondary Input: 5A phase current transformer input(P5)

Control Power: 70‑265VAC / 90‑300VDC universal high‑range power supply(HI), 48‑62Hz

Analog Output: 4‑channel configurable 4‑20mA analog output(A20)

Temperature Sensor: Support 3‑wire RTD Pt100, Ni100, Ni120, Cu10 temperature detection

Communication Interface: RS485 Modbus RTU, front‑panel RS232 local programming port

Display: Enhanced LCD front‑panel(E), 40‑character multi‑line liquid‑crystal display

Mounting Mode: Panel flush mounting

Front‑panel Protection Grade: IP40

Relay Output: Multi‑group programmable relay trip & alarm outputs

Recording Function: Event log, fault waveform capture, motor running‑data recording

Power Consumption: Typical 15W

Operating Temperature:‑40℃ ~ +60℃, non‑condensing

Humidity:5%‑95% non‑condensing

Weight:1.36kg

Dimension:176mm ×112mm ×76mm

Application: Power plant auxiliary motor, water‑treatment plant, oil‑gas industry, steel‑plant, compressor, pump and fan motor protection

Product Function Description

SR469‑P5‑HI‑A20‑E belongs to GE Multilin 469 series motor management relay, specially designed for medium‑and‑large industrial three‑phase motors. This relay integrates complete protection, measurement, control and data recording functions. It implements thermal‑model‑based thermal overload protection, stall protection, short‑circuit protection, ground‑fault protection, phase‑unbalance & phase‑loss protection, under‑voltage/over‑voltage protection and RTD over‑temperature protection for motors.

It can real‑time collect current, voltage, power, energy, temperature and other operating parameters. Built‑in event record and fault waveform‑capture function can store fault‑related data, which helps engineers quickly locate fault causes and reduce equipment downtime. The A20 configuration provides four configurable 4‑20mA analog outputs for transmitting key motor‑operating data to upper‑level DCS system. Enhanced front‑panel supports local parameter setting, status viewing and fault diagnosis. It supports Modbus RTU communication to realize remote monitoring and parameter configuration by host system

Product Details

Panel‑mount compact integrated structure, enhanced human‑machine operation front‑panel. Industrial hardware design adapts to complex industrial site environment. This legacy protection relay has been discontinued by original manufacturer, mainly used for old‑equipment overhaul and spare‑part replacement. Please confirm CT ratio, power‑supply range and communication parameters before commissioning. Strict ESD protection shall be adopted during installation.