GE Multilin SR489-P1-HI-A20-E Generator Management Relay

Overview

The GE Multilin SR489-P1-HI-A20-E is a versatile Generator Management Relay. It delivers reliable protection, control, and monitoring for small to medium-sized generators. It is widely used in industrial settings for its advanced features and robust design.

Technical Specifications

• Model Number: SR489-P1-HI-A20-E

• Type: Generator Management Relay

Communication

• Supports RS232, RS485, and Ethernet (10BaseT).

• Compatible with Modbus RTU, Modbus TCP/IP, and DNP 3.0 protocols.

Inputs and Outputs

• Analog inputs for vibration monitoring.

• 4-20 mA analog outputs for control and monitoring.

Power Supply

• Operates with 90-300 V DC or 70-265 V AC.

Environmental Specifications

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

• Humidity: 5% to 95%, non-condensing.

Additional Features

• Damped Oscillation Test Level: 2.5 kV, 1.0 MHz.

• Ground Overcurrent Curve Shapes: ANSI, IEC, IAC, Flexcurve, Definite Time.

• Mounting: Panel or 19" rack mount.

Durability and Compliance

• Operating Temperature Range: -40°C to +60°C.

• Production Tests Dielectric Strength: 1.9 kV AC for 1 second or 1.6 kV AC for one minute (per UL 508).

Performance and Control

• Tachometer Duty Cycle: >10%.

• Trip Coil Supervision Trickle Current: 2 to 5 mA.

• Underfrequency Pickup Accuracy: ±0.02 Hz.