GE SR465‑P5‑HI‑A20 Motor Management Relay

Technical Specifications

Model: SR465‑P5‑HI‑A20

Brand: GE Multilin (GE Vernova)

Product Type: Digital 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: Multi‑channel configurable 4‑20mA analog output(A20)

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

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

Display: Standard LCD liquid‑crystal display panel

Mounting Mode: Panel flush mounting

Front‑panel Protection Grade: IP40

Relay Output: Multiple groups programmable trip & alarm relay outputs

Recording Function: Event log, fault data recording, motor operating‑parameter statistics

Power Consumption: Typical 14W

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

Humidity:5%‑95% non‑condensing

Weight:1.32kg

Dimension:176mm ×112mm ×76mm

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

Product Function Description

SR465‑P5‑HI‑A20 belongs to GE Multilin 465 series digital motor management relay, which is designed for medium‑and‑large industrial three‑phase motors. This relay integrates complete protection, measurement, control and data statistics functions. It provides thermal‑model 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 and temperature operating data. Built‑in event log and fault‑recording function store fault‑related information, helping maintenance personnel quickly analyze fault causes and reduce equipment downtime. The A20 configuration provides configurable 4‑20mA analog output channels, which upload motor key operating data to upper‑level DCS control system. Standard front‑panel supports local parameter setting, status inspection and fault query. It adopts Modbus RTU communication to realize remote monitoring and remote parameter configuration by host system.

Product Details

Compact panel‑mount integrated structure, standard LCD human‑machine operation 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.