GE Multilin 369‑A200 Motor Management Digital Protection Relay

The GE Multilin 369‑A200 is a digital motor management relay designed for three‑phase medium and low voltage motors. It integrates comprehensive motor protection, electrical metering, temperature monitoring and event recording functions to prevent motor burnout caused by overload, unbalance, ground fault and overheating.

This panel‑mounted relay is equipped with a local LCD display, keypad and multiple serial communication ports, supporting parameter setting and remote data access via EnerVista software. Original production has been discontinued. It is widely supplied as aftermarket spare parts for power plants, water treatment and chemical plant motor control cabinet maintenance and upgrading.

Main Specifications

1. Brand: GE Multilin; Model:369‑A200; Type:Digital Motor Management Protection Relay
2. Applicable Object:3‑phase LV/MV induction motors, pumps, fans and compressors
3. Protection Functions:Overload, current unbalance, ground fault, stall, undercurrent and RTD overtemperature protection
4. Communication:Front RS232 and rear RS485 interfaces, standard Modbus RTU protocol
5. Human‑Machine Interface:Local LCD screen and keypad for real‑time reading and parameter configuration
6. Installation:Panel cut‑out mounting, wide auxiliary power supply range, industrial‑grade enclosure
7. Supply Status:Original production discontinued, available as tested surplus or refurbished spare parts

Core Functions

1. Adopt thermal overload model and FlexCurve customizable protection curve to protect motor windings from overheating damage.
2. Monitor phase current unbalance and ground fault current and trigger alarm or trip to avoid motor insulation failure.
3. Collect RTD temperature signals from stator and bearings to realize direct temperature protection of rotating equipment.
4. Measure voltage, current, power, power factor and energy consumption for motor energy‑saving analysis.
5. Record fault events and waveform snapshots, which help engineers quickly locate the root cause of motor shutdown.
6. Upload running data and fault information to DCS/SCADA through serial bus to realize remote centralized monitoring.

Application Scenarios

1. Motor protection and condition monitoring for power, petrochemical, water supply and mining industries.
2. Spare relay replacement and routine maintenance of existing GE 369 series motor control panels.
3. Technical renovation and safety improvement of old‑generation motor protection and control systems.
4. On‑site troubleshooting and replacement of failed motor protection relays on running production equipment.
5. Spare‑parts stocking for system integrators and electrical automation maintenance contractors.
6. Global aftermarket spare supply for technicians maintaining obsolete GE Multilin motor protection hardware.

FAQ

1. Q:What is the main function of 369‑A200?
   A:It is a dedicated motor management relay integrating protection, metering, temperature monitoring and fault recording.
2. Q:What communication protocols does it support?
   A:It adopts RS232/RS485 ports and built‑in Modbus RTU for upper system connection.

3. Q:Is this motor protection relay still in original production?
   A:GE Multilin has stopped manufacturing this model, only tested surplus and refurbished spare units are available.