GE Multilin 369-HI-R-M-0-0-0-0 Motor Management Relay

GE Multilin 369-HI-R-M-0-0-0-0 is a high integrity motor management relay for three-phase industrial motors. It integrates comprehensive motor protection, real-time electrical metering, RTD temperature monitoring and event recording, providing full protection against overload, phase loss, ground fault and locked rotor faults.

This relay supports isolated RS-485 Modbus RTU and local RS232 configuration port, with waveform capture and sequence of event logging functions. It adopts wide range HI control power supply, and is UL, CSA, CE certified. Widely used as spare parts for MCC motor control centers, power plants and chemical process motor control cabinets.

Main Specifications

1. Brand: GE Multilin; Model: 369-HI-R-M-0-0-0-0; Type: Motor Management Protection Relay
2. Compatible Application: 3-phase industrial motors, MCC motor control center panels
3. Core Functions: Motor fault protection, electrical metering, RTD temperature monitoring, SOE & waveform capture
4. Power Supply: HI range 50~300VDC / 60~265VAC; CT input: 1A or 5A secondary
5. Communication: Isolated RS485 Modbus RTU, RS232 local configuration port; 12 RTD inputs
6. Operating Temperature: -20℃ ~ +70℃; Front panel mounting, LCD local display
7. Supply Status: Original GE spare relay for motor control cabinet maintenance

Core Functions

1. Provide multi-dimensional motor protection including overload, locked rotor, phase imbalance, phase loss and ground fault trip protection.
2. 12 channels RTD temperature input monitors stator and bearing temperature to prevent motor overheating damage.
3. True RMS electrical measurement collects current, voltage, power and energy data for SCADA system remote monitoring.
4. Built-in SOE event logging and waveform capture, record fault waveform and time stamp for post-fault analysis.
5. Isolated Modbus RTU communication uploads motor status and alarm data to DCS or SCADA host system.
6. Local LCD display and keypad support on-site parameter setting, status viewing and manual test operation.

Application Scenarios

1. Motor protection and monitoring unit for MCC motor control centers in power, water treatment and chemical plants.
2. Fault relay replacement and routine maintenance of existing GE Multilin 369 series motor control panels.
3. Motor control and protection system renovation and upgrade for industrial production and heavy machinery equipment.
4. Emergency replacement for relay failure to restore motor overload, ground fault and temperature protection functions.
5. Spare parts stocking for maintenance teams operating GE motor protection and SCADA monitoring systems.
6. Aftermarket spare supply for motor control cabinet overhaul and industrial motor automation transformation projects.

FAQ

1. Q: Can GE 369-HI-R-M-0-0-0-0 be used for single-phase motor protection?
   A: It is designed for three-phase motor protection, not suitable for single-phase motor application scenarios.
2. Q: What are typical relay failure symptoms?
   A: LCD no display, Modbus communication offline, false motor trip, no fault waveform capture, RTD reading abnormal.
3. Q: How to complete commissioning and diagnosis?
   A: Check control power and CT/RTD wiring, set motor protection parameters, perform trip test and verify Modbus data upload.