Description
Product Introduction & Engineering Value
Unexpected motor trips are expensive, but replacing a relay with the wrong option code can create even bigger problems. The GE Multilin 369-HI-R-M-F-E-0-0 combines thermal protection, electrical protection, operational monitoring, and advanced diagnostics in one relay designed for continuous-duty industrial motors.
Its option code includes high-voltage control power, integrated RTD monitoring, the optional metering package, fiber optic communication capability, and enhanced diagnostics, making it suitable for demanding motor control centers, compressor stations, and process plants.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | GE Multilin |
| Model | 369-HI-R-M-F-E-0-0 |
| Product Family | 369 Motor Management Relay |
| Control Power | HI: 50–300 VDC / 60–265 VAC |
| RTD Inputs | 12 Built-in RTD Inputs |
| Metering Package | Included |
| Fiber Optic Ports | Included (Rx/Tx) |
| Enhanced Diagnostics | Included |
| Motor Protection | Thermal, Overcurrent, Ground Fault, Phase Loss, Jam, Stall |
| Communications | Fiber Optic Interface |
| Event Recording | Enhanced Event Recorder |
| Installation | Panel Mount, Non-Drawout Relay |
Field Application & The “Trench” Experience
A petrochemical facility experienced repeated shutdowns on a 4.16 kV compressor motor after intermittent overheating alarms. Inspection showed the existing relay could no longer process RTD inputs consistently. During a planned maintenance outage, engineers installed a GE 369-HI-R-M-F-E-0-0, restored the original protection settings through EnerVista software, verified all twelve RTD channels, and completed commissioning before the process unit returned to production. The additional metering and enhanced diagnostics allowed maintenance personnel to identify increasing bearing temperatures weeks before another forced shutdown.
Typical applications include:
- Crude Oil Pipeline Booster Pump Protection
- Forced Draft Fan Motors in Utility Boilers
- Refrigeration Compressor Drives in Chemical Processing Plants
Transparency SOP: QA & Testing
Before shipment, every relay is processed through a documented inspection procedure.
- ✔ Verify complete catalog number and hardware option code
- ✔ Confirm HI control power operation
- ✔ Test LCD display, keypad, LEDs, and alarm indicators
- ✔ Inspect fiber optic transmitter and receiver ports
- ✔ Verify RTD input circuitry
- ✔ Perform relay self-diagnostics
- ✔ Check output relay operation
- ✔ Inspect PCB assemblies for corrosion, overheating, or repaired traces
- ✔ Package using anti-static protection and impact-resistant materials
369-HI-R-M-F-E-0-0
369-HI-R-M-F-E-0-0
The Veteran’s Tech Trap Guide
⚠️ Never Match Only the First Three Digits
The suffix HI-R-M-F-E-0-0 defines the installed hardware. Ordering a generic “369 relay” can leave you without fiber optics, metering, or enhanced diagnostics. Always compare the complete option code before purchasing.
⚠️ Back Up Settings Before Removal
Although protection settings can often be restored through EnerVista, many legacy installations no longer have current configuration files. Save every relay setting before disconnecting the original unit.
PRO TIP: Check CT ratios, RTD type selection, and motor thermal constants before energizing. Incorrect values can produce nuisance trips even when the relay is operating normally.
Dynamic FAQ
Q1. What does the HI designation indicate?
It specifies the high-range control power supply, supporting 50–300 VDC or 60–265 VAC control voltage.
Q2. What features are included with the R-M-F-E option package?
This configuration includes 12 built-in RTD inputs, the metering package, fiber optic communications, and enhanced diagnostics with an upgraded operator interface.
Q3. Can this relay directly replace another GE Multilin 369?
Yes, provided the complete catalog number, control power, communication options, and installed features match the original relay.
Q4. Does the relay support predictive maintenance?
Yes. Thermal modeling, RTD temperature monitoring, event logging, motor health information, and enhanced diagnostics help maintenance teams identify developing problems before a motor trips unexpectedly.
Q5. How are New Surplus and Refurbished units verified?
Each unit undergoes identification verification, visual inspection, functional power-up testing, hardware examination, and packaging inspection before shipment. Testing procedures vary according to product condition.
Q6. Is warranty coverage available?
Yes. Both New Surplus and professionally refurbished units are available with warranty coverage. Warranty terms depend on inventory condition and can be provided with the quotation.
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