GE SR489-P5-HI-A20-E Generator Management Relay (489 Series)
- Product Code: SR489-P5-HI-A20-E
- Availability: In Stock
GE SR489-P5-HI-A20-E
Manufacturer: GE Multilin
Part No: SR489-P5-HI-A20-E
Type: Generator Management Relay (489 Series)
Status: Industrial protection & control relay, widely used in power generation
1. General Description
The GE SR489-P5-HI-A20-E is a microprocessor-based generator management relay from the 489 series by GE Multilin. It provides comprehensive protection, control, and monitoring for synchronous and induction generators, ensuring safe and efficient operation in power plants and industrial power systems.
2. Key Specifications
• Phase CT Input: 5 A (P5)
• Control Power (HI): 90–300 VDC / 70–265 VAC, 48–62 Hz
• Analog Output (A20): 4–20 mA
• Communication: RS485 (Modbus RTU/DNP3.0), up to 19200 bps
• Protection Functions: Overcurrent, differential, over/undervoltage, ground fault, thermal overload
• Operating Temp: -20°C to +70°C
• Dimensions: 177×177×190 mm (6U panel mount)
• Certifications: UL 508, CE, IEC 62443
3. Part Number Definition
• SR489: 489 Series Generator Management Relay
• P5: 5 A phase CT secondary input
• HI: High-range control power (90–300 VDC / 70–265 VAC)
• A20: 4–20 mA analog output
• E: Enhanced firmware/options
4. Typical Applications
• Power plant generator protection & control
• Industrial synchronous/induction generator monitoring
• Critical asset protection in utility & industrial power systems
• Integration with DCS/SCADA via Modbus/DNP3
GE © SR489-P5-HI-A20-E Generator Management Relay