GE 489-P5-LO-A20 Generator Management Relay, Low Voltage Control, 4-20mA Analog Output
The GE 489-P5-LO-A20 is a high-performance generator management relay designed by GE Multilin for precise protection and monitoring of electrical systems. It offers advanced overcurrent protection, directional timing accuracy, and negative sequence overcurrent detection to ensure reliable operation and safety.
Digital Inputs:4
Sensor Supply:24 VDC at 20 mA Max
Field Breaker Discrepancy Elements:Trip
Ground Directional Timing Accuracy:±100 ms
Negative Sequence Overcurrent Time Delay:0.1 to 100.0 s in steps of 0.1
Neutral Voltage Input Conversion Range:0.005 to 1.00 × Full Scale
Overcurrent Alarm Timing Accuracy:±0.5% of total time
Phase Differential Pickup Level:1.01 to 1.50 × rated V in steps of 0.01
Communication Ports:Parity: None, Odd, Even
High-Set Phase Overcurrent Elements:Trip
Low Forward Power Time Delay:0.2 to 120.0 s in steps of 0.1
Phase Overcurrent Voltage Restraint:Programmable Fixed Characteristic
Pulse Output:Pulse Width 200 to 1000 ms in steps of 1
Tachometer:Configurable Assignable to Digital Inputs 4 to 7
Weight:Approximately 10 lbs.
The GE 489-P5-LO-A20 Generator Management Relay provides robust monitoring and control solutions tailored for industrial environments. With its advanced digital inputs and precise overcurrent alarm timing, this relay ensures optimal generator performance and reliability. Its design includes 4 opto-isolated digital inputs, enhancing safety and reducing interference. Additionally, the communication ports like Modbus® RTU and DNP 3.0 facilitate seamless integration with existing systems. Rated for operation from 20 to 60 VDC or 20 to 48 VAC, this relay supports a wide range of voltages, making it versatile for diverse applications. The 4 to 20 mA analog output allows for accurate measurement and feedback, critical for effective generator management.













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