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GE 369-HI-R-M-0-0-H-E – Multilin Motor Management Relay
Product Overview
The GE 369-HI-R-M-0-0-H-E is a digital motor management relay from the GE Multilin 369 series, engineered specifically for comprehensive protection, monitoring, and diagnostics of medium-voltage three-phase motors–1. This relay addresses a critical challenge in industrial environments: preventing unexpected motor failures that lead to costly downtime and equipment damage. By continuously monitoring electrical parameters, thermal conditions, and mechanical stresses, the 369-HI-R-M-0-0-H-E provides early warning and fault isolation for motors driving pumps, compressors, conveyors, and HVAC systems in industries ranging from oil and gas to mining and manufacturing-3. A standout feature is its adaptive learning capability—the relay automatically “learns” individual motor characteristics such as startup current profiles, cooling rates, and acceleration times, then tailors its protection logic accordingly-. This eliminates the need for complex manual configuration while delivering precision protection that legacy relays cannot match-29.
Technical Specifications — 369-HI-R-M-0-0-H-E
| Parameter | Value |
|---|---|
| Product Model | 369-HI-R-M-0-0-H-E |
| Manufacturer | GE Multilin (General Electric) |
| Product Type | Motor Management Relay |
| Control Power Input | 50–300 VDC or 60–265 VAC, 50/60 Hz–3 |
| Current Inputs | 1A / 5A CT secondary, true RMS sampling, software-selectable-11 |
| Voltage Inputs | Three-phase, up to 600V AC nominal-11 |
| RTD Inputs | 12 channels, 3-wire Pt100 / Ni100 / Ni120 / Cu10-1-11 |
| Relay Outputs | Multiple SPDT, 3A @ 250VAC / 2A @ 300VDC-1 |
| Analog Outputs | 4 channels, 4–20mA (programmable)-11 |
| Communication | RS-485 (Modbus RTU / DNP3), RS-232 (front panel)-1-11 |
| Ethernet | 10/100M, Modbus TCP-11 |
| Operating Temperature | -40°C to +60°C-1-12 |
| Storage Temperature | -40°C to +85°C-3 |
| Humidity | 5% to 95% RH, non-condensing-1-3 |
| Dimensions (H×W×D) | Approx. 296 × 107 × 205 mm-12 |
| Weight | Approx. 4.5 kg (10 lbs)-1 |
| Protection Coating | Conformal coating (H option)-1-11 |
| Manual Reference | GEK-106288R-1 |
GE 369-HI-R-M-0-0-H-E
Key Features and Benefits — 369-HI-R-M-0-0-H-E
- Comprehensive Motor Protection – The relay delivers full-spectrum protection including overload, short circuit, ground fault, phase loss, phase reversal, under/over voltage, locked rotor, stall, and thermal overload–3. The advanced thermal model combines current-based heating with RTD temperature measurements for dual-validation protection that minimizes nuisance tripping-11.
- 12-Channel RTD Temperature Monitoring – With 12 dedicated RTD inputs, the relay continuously monitors stator winding and bearing temperatures, providing graded alarms and trip thresholds to prevent catastrophic overheating-1-11.
- Adaptive Motor Learning – The relay automatically adapts to each motor’s unique parameters, configuring itself to the specific application without extensive manual setup–29. This ensures optimal protection across varying load conditions.
- Advanced Diagnostics and Waveform Capture – Built-in waveform capture records up to 128 cycles of current and voltage data around fault events, enabling rapid root-cause analysis-11-19. The relay also maintains an event log, start/run counters, and motor health reports for predictive maintenance planning-12-29.
- Ruggedized for Harsh Environments – The “H” option includes conformal coating that protects against moisture, dust, and corrosive atmospheres commonly found in chemical plants, refineries, and mining operations-1-11.
- Flexible Communication – Standard Modbus RTU over RS-485 and optional Modbus TCP over Ethernet enable seamless integration with PLCs, DCS, and SCADA systems for remote monitoring and control-1-11.
Related Models
- 369-HI-R-M-0-0-0-E : Similar configuration without the conformal coating option; suited for indoor or climate-controlled environments where corrosive exposure is not a concern-29.
- 369-HI-0-B-0-0-0-0 : Base model without RTD inputs or metering; designed for basic motor protection applications where temperature monitoring is not required-.
- 369-HI-0-B-F-D-0-E : Includes fiber optic communication ports and backspin detection for applications requiring high-speed isolated data transfer-.
- 369-HI-R-M-0-0-0-E : Features the enhanced diagnostics package (E option) with motor health reporting and startup data logging, but without conformal coating-29.
Installation and Maintenance — 369-HI-R-M-0-0-H-E
The 369-HI-R-M-0-0-H-E is designed for standard DIN rail or panel mounting in control cabinets-2. Prior to installation, verify that the control power supply matches the relay’s wide-range input (50–300 VDC or 60–265 VAC) and that CT secondary ratings (1A or 5A) are correctly configured via software-11. The relay should be installed away from strong magnetic fields or high-current conductors to prevent interference-1. Routine maintenance is minimal: periodically inspect LED status indicators on the front panel for fault conditions, and use the built-in LCD interface or EnerVista software to review event logs and waveform records after any trip event-29. The conformal coating provides long-term protection against environmental contaminants, reducing the need for frequent cleaning or replacement in harsh settings. Firmware updates and configuration changes are performed via the front-panel RS-232 port using GE’s EnerVista 369 setup software-11-29.
