GE SR469‑P5‑HI‑A20 Motor Management Relay

Technical Specifications

Model: SR469‑P5‑HI‑A20

Brand: GE Multilin (GE Vernova)

Product Type: Intelligent Motor Management Protection Relay

Applicable System: Medium‑large three‑phase induction motor and 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 winding‑bearing temperature detection

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

Display: Standard multi‑line LCD liquid‑crystal display with keypad

Mounting Mode: Panel flush mounting

Front‑panel Protection Grade: IP40

Digital Input: 9‑channel opto‑isolated programmable digital input

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

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

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, fan medium‑large motor protection

Product Function Description

SR469‑P5‑HI‑A20 belongs to GE Multilin 469 series motor management relay, designed for medium‑and‑large industrial three‑phase motors。

This relay integrates complete protection, measurement, control and data‑recording functions. It realizes thermal‑model‑based thermal overload protection, locked‑rotor stall protection, short‑circuit protection, ground‑fault protection, phase‑unbalance & phase‑loss protection, over‑voltage/under‑voltage protection and RTD winding‑bearing over‑temperature protection for motors。

It can real‑time collect current, voltage, power, energy, temperature and other operating parameters. Built‑in event log and fault waveform‑capture function store fault‑related data, which helps maintenance 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. Standard LCD 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. It can be configured and maintained via GE EnerVista 469 software。

Product Details

Panel‑mount compact integrated structure, standard human‑machine operation front‑panel. Industrial‑grade hardware design adapts to complex industrial‑site environment. This legacy motor‑management 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.