Description
Product Name ：SR489-P5-HI-A20 GE Output module
Product details:
The GE Multilin SR489-P5-HI-A20 is a digital management and protection relay designed specifically for small to medium-sized generators. It provides comprehensive protection, control, and monitoring to prevent damage from electrical and mechanical faults.
Key Specifications
| Feature / Parameter | Specification |
| Model Code | SR489-P5-HI-A20 |
| Phase Current Input | 5 A secondary |
| Control Power (HI) | 88–300 VDC / 70–265 VAC |
| Analog Inputs (A20) | 4–20 mA transducer inputs |
| Display | 40-character illuminated LCD display |
| Communication Ports | RS485 (Modbus RTU), Front RS232 |
| Mounting Type | Drawout case (panel mount) |
Key Advantages
- Comprehensive Protection: Combines stator differential, overcurrent, reverse power, and loss of excitation protection into a single unit.
- Drawout Construction: Allows quick removal and replacement without disturbing panel wiring, minimizing system downtime.
- Advanced Monitoring: Features thermal metering, trip logging, and waveform capture for fast post-fault analysis.
- Reliable Power Supply: The high-voltage control power option (“HI”) accommodates broad AC and DC auxiliary power sources.
Important Safety & Operational Considerations
- CT Secondary Shorting: Always short-circuit current transformer (CT) secondaries before disconnecting inputs to prevent hazardous high voltages.
- Voltage Matching: Verify auxiliary supply voltage matches the specified range (88–300 VDC / 70–265 VAC) prior to powering the unit.
- Proper Grounding: Ensure the relay case is solidly bonded to system earth ground to prevent electrical noise and safety hazards.
- Firmware & Settings: Backup current configuration files using GE Enervista software before performing firmware updates or maintenance.
Primary Applications
- Industrial Generators: Protection for continuous and standby power generators in manufacturing plants.
- Co-generation Plants: Thermal and electrical monitoring for small utility-interfaced generators.
- Marine & Offshore Power Systems: Generator control on vessels and offshore rigs requiring robust fault protection.
Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!
We have the same series of models in stock. If you don’t find the model you need, please contact us and we will provide you with an official quotation！
Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: United States
Price: Please contact us Product weight：0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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