GE Multilin 369-LO-R-0-0-E-0-E 369 series motor management protection relay

I. Product Basic Information
Model: 369-LO-R-0-0-E-0-E
Brand: GE Vernova (formerly GE Multilin)
Category: 369 Series Motor Management Protection Relay (MMR, Motor Management Relay)
Life Cycle: The original factory has discontinued production. The replacement model is 859 Motor Protection Device GE Vernova
Usage: Comprehensive protection for three-phase medium and low voltage motors, temperature measurement, metering, fault recording, start-stop control, suitable for scenarios such as water pumps, fans, compressors, variable frequency motors, underground pumps, etc.

Interpretation of Segment Model Codes (369-LO-R-0-0-E-0-E)
Segment Format: 369 – Power Supply Specification – Output Type – RTD Channel – Metering Package – Communication Protocol – Coating/Additional Diagnosis – Panel Enhancement Table
Segmented code Code Detailed meaning
369 369 Product series: Multi-functional motor integrated protection relay
LO LO Low-voltage control power supply: 20~48V AC / 20~60V DC
R R With standard relay trip/alarm output (passive relay contacts)
Bit 1 0 0 No RTD temperature measurement module, does not support motor winding / bearing temperature monitoring
Bit 2 0 0 Does not include advanced metering options, only basic current voltage acquisition, no power / energy metering
E E Communication protocol: Modbus RTU (RS485) Standard E=Modbus
Bit 3 0 0 No three-proof protective coating (Coating=0 = Uncoated)
End with E E Enhanced diagnostic panel: with large screen display, motor health report, waveform capture, event recording function
Summary of core configuration of this model
Low-voltage AC/DC power supply, relay output, no RTD temperature measurement, no advanced metering, Modbus communication, no three-proof coating, with enhanced diagnostic display panel.

Core hardware and protection functions
1. Electrical specifications
CT secondary current input: 1A / 5A universal
Frequency adaptation: 20~100Hz, compatible with variable frequency drive motors
Communication interface: Front panel isolated RS232 (debugging), back panel multi-channel RS485 Modbus RTU
Recording capabilities: Fault recording, startup current curve, event log, trip history, parameter modification traceability
Protection standard: IEC/ANSI industrial protection standard, maximum usage altitude 2000m, humidity ≤ 95% no condensation
2. Standard protection logic (all built-in)
Overload, stall, start-up timeout, three-phase current imbalance, phase failure, grounding fault, short circuit, undervoltage / overvoltage, phase sequence error, reverse power, thermal accumulation protection (FlexCurve custom thermal curve + 15 standard curves)
3. Control functions
Motor start/stop logic, two-speed motor control, soft start coordination logic, fault interlock, customizable programmable logic (PLC logic function)

Application and spare parts description
Discontinued replacement: The entire 369 series has been discontinued production. New projects use GE Vernova 859 series motor protectors, fully covering functions and hardware upgrade
Spare parts channel: Only industrial spare parts suppliers have disassembled / brand new inventory, often used for replacement of old equipment in power plants, chemical plants, water plants
Companion software: EnerVista 369 configuration software, used for parameter download, fault waveform reading, motor health analysis
Manual number: GEK-106288R (Complete operation manual for 369 series)

Common differences in the same series comparison
369-HI: High-voltage power supply (40~265VAC / 50~300VDC), distinguished from this model LO low-voltage
Middle section M: With 12 RTD temperature measurement; 0 = No temperature measurement
Middle section F: Advanced energy metering; 0 = No metering
End with 0: Basic panel; E: Enhanced diagnostic large-screen panel