Description
Technical Parameters
- Model Code Breakdown:
- 369: Base Motor Management Relay
- HI: High Control Voltage (88–300 VDC / 70–265 VAC)
- R: Rear Terminal Configuration
- M: Backlit LCD Display & Programming Port
- F: Fiber Optic Port (Standard 10Base-FL)
- E: Ethernet Port (10Base-T)
- H: Harsh Environment Conformal Coating
- E: Enhanced Diagnostics / Power Elements
- Manufacturer: GE Multilin
- Inputs: 3-Phase CTs, 1 Ground CT, 12 RTD Inputs
- Communications: Modbus RTU/TCP, Profibus (Optional), Ethernet
Product Description
The GE Multilin 369-HI-R-M-F-E-H-E is a highly integrated motor management relay designed for the protection and monitoring of medium-voltage motors. It is specifically engineered to handle the thermal demands of motor operation, providing a sophisticated thermal model that protects against overheating due to overload, stalled rotors, or frequent starting.
This specific configuration is a “fully loaded” variant. It includes both Fiber Optic and Ethernet communication ports for high-speed data transfer and network redundancy. The “H” (Harsh Environment) suffix indicates that the internal circuit boards are conformal coated, protecting the unit from moisture, dust, and chemical contaminants common in heavy industrial settings.
Application Areas
- Industrial Pumps & Fans: Protecting high-horsepower motors in water treatment and mining.
- Compressor Stations: Monitoring vibration (via optional module) and thermal status in oil and gas pipelines.
- Chemical Processing: Reliable operation in corrosive atmospheres thanks to conformal coating.
- Pulp & Paper: Managing motors subject to high-torque starts and variable loads.
Product Specifications
- Weight: 2.25 kg
- Dimensions: 188 mm x 175 mm x 148 mm
- Mounting: Panel Mount (Cutout required)
- Frequency: 50/60 Hz
- Country of Origin: Canada
Operating Precautions
- CT Phasing: Ensure Phase A, B, and C CTs are installed in the correct sequence; incorrect phasing will lead to improper calculation of negative sequence current and false thermal trips.
- RTD Shielding: Always use shielded twisted pair wiring for the 12 RTD inputs to prevent electromagnetic noise from causing false temperature readings.
- Network Redundancy: If using both Ethernet and Fiber Optic ports, ensure the network switch configuration supports the chosen redundancy protocol (e.g., STP/RSTP).
- Grounding: The relay case must be connected to a solid station ground via the dedicated ground lug to ensure the internal surge protection components function correctly.
Recommended Similar Products
| Model Number | Product Description | Key Differences |
|---|---|---|
| 369-HI-R-0-0-0-0 | Basic 369 Relay | No Ethernet/Fiber/Coating |
| 469-P5-HI-A20 | Advanced Motor Management | Higher-tier protection/Logic |
| 869-G-P5-HI | Modern Multilin 8 Series | Next-gen replacement |
| MM200-H-0-1-A-0 | Low-Voltage Motor Protection | For smaller 600V motors |
| 369-LO-R-M-F-E-H-E | 369 Low Voltage Power | 24-48 VDC Control Power |
