GE Multilin 489-P1-LO-A20-E Generator Management Relay

Overview

The GE Multilin 489-P1-LO-A20-E is a high-performance Generator Management Relay, designed to provide comprehensive protection, control, and monitoring for small to medium-sized generators. It belongs to the SR family of relays, offering advanced features that ensure reliable operation in various industrial applications.

Technical Specifications

• Model Number: 489-P1-LO-A20-E

• Type: Generator Management Relay

Communication

• Connectivity: RS232, RS485, and Ethernet (10BaseT)

• Protocols Supported: Modbus RTU, Modbus TCP/IP, and DNP 3.0

Inputs and Outputs

• Analog Inputs: For vibration monitoring

• Analog Outputs: 4-20 mA for control and monitoring

Power Supply

• Voltage: 20-60 V DC or 20-48 V AC at 48-62 Hz

Environmental Specifications

• Operating Temperature: -20°C to +60°C (-4°F to +140°F)

• Humidity: 5% to 95% non-condensing

Additional Features

• Analog Current Input Supply: +24 V DC at 100 mA max

• Energy Metering Update Rate: 50 ms

• Ingress Protection: IEC60529 Standard

• IRIG-B DC Shift: TTL

• Output/Neutral Current Inputs Conversion Range: 0.02 to 20 × CT

• Phase Differential Curve Shape: Dual Slope

• Relays Operation Time: 10 ms

• Voltage Phase Reversal Timing Accuracy: 200 to 400 ms