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369-HI
369-HI
369-HI

GE 369-HI Multilin 369 Motor Management Relay

  • Model: 369-HI
  • Brand: GE Multilin
  • Series: 369 Motor Management
  • Core Function: Motor protection and monitoring
  • Product Type: Motor Management Relay
  • Key Specs: HI control power (50-300 VDC / 60-265 VAC), thermal model protection
  • Condition: New Original / New Surplus
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Description

3. Key Technical Specifications

  • Control Power: 50-300 VDC or 60-265 VAC (HI range)
  • Protection: Thermal overload, stall/jam, phase reversal, unbalance
  • Inputs: Supports up to 12 RTDs (with R option)
  • Outputs: Form C relays (Trip, Aux, Alarm)
  • Communication: RS232 front port, optional rear ports
  • Mounting: Panel or 19″ rack mount
  • Operating Temp: Standard industrial range for control relays
  • Features: Enhanced thermal modeling, event recording

4. Product Introduction

The GE 369-HI is a Multilin 369 digital motor management relay for protecting and monitoring medium-sized AC motors. It handles thermal overload, current unbalance, stall, and other common motor faults in industrial applications.

Plant engineers use this relay for its reliable protection algorithms and detailed diagnostics. The HI voltage control power option fits a wide range of site supplies. Check your specific order code options (RTD, metering, etc.) against the installed base for exact replacement compatibility.

369-HI
369-HI
369-HI
369-HI

5. Troubleshooting Quick Reference

Symptom Possible Cause Relevance to this Part Quick Check Method Recommendation
Relay not powering up Control power issue ✅ High Measure voltage at power terminals Confirm supply matches HI range
No motor start permitted Thermal lockout active ✅ High Check thermal capacity used via display/software Allow cooldown or review settings
False trip on overload Incorrect CT ratios or settings ✅ Medium Verify CT data and motor nameplate match Adjust settings per motor data sheet
Communication failure Cable or port config ✅ Medium Test front RS232 with EnerVista software Check baud rate and cable wiring
RTD alarms (if equipped) Open/short sensor ✅ High View RTD status in software Inspect wiring and sensor at motor

Download event records and send them with photos of the relay faceplate to support for faster diagnosis.

6. Frequently Asked Questions (FAQ)

What does the “HI” in GE 369-HI mean? It designates the high-range control power supply: 50-300 VDC or 60-265 VAC. This is the most common version for industrial plants.

Is this a full motor management relay or basic protection? It is a full-featured motor management relay with protection, metering (optional), and monitoring capabilities. Confirm the exact suffix options on your unit for RTDs, metering, or other features.

Can I use EnerVista software to program it? Yes. The front RS232 port supports EnerVista 369 Setup software for configuration, monitoring, and waveform analysis. It is included with the relay.

Is the 369-HI obsolete? It is a legacy model but remains widely supported with available spares. New Surplus stock provides a cost-effective option for replacements.

Do I need to power down the motor to replace the relay? Yes. Isolate the motor and control circuits before swapping the relay to avoid unintended starts or trips. Follow proper lockout/tagout.

What warranty applies to New Surplus units? We provide a 1-year warranty on tested New Surplus relays. Units undergo power-up, functional, and communication verification.

What common pitfalls occur during replacement? Mismatched CT ratios or unupdated settings cause most issues. Photograph the existing relay display and settings screens before removal. Mirror all parameters exactly on the new unit. Verify ground connections.

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