Communication Ports:None, Odd, Even

Harsh Environment Coating:Not Available on this Model

High-Set Phase Overcurrent Elements Trip:IRIG-B Amplitude Modulated 2.5 to 6.0 Vpk-pk at 3:1 signal ratio

Low Forward Power Time Delay:0.2 to 120.0 s in steps of 0.1

Phase Overcurrent Voltage Restraint:Programmable Fixed Characteristic

Pollution Degree:II

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

Analog Current Output Isolation:36 Vpk (isolated with RTDs and analog inputs)

Case Drawout:Fully drawout (automatic CT shorts)

Digital Inputs:489

Sensor Supply:24 V DC at 20 mA max

Impedance Time Delay:0.1 to 100.0 s in steps of 0.1

Negative Sequence Overcurrent Pickup Level:3 to 100% FLA in steps of 1

Phase Distance Characteristics:Offset mho RTD Inputs Sensing Current 5 mA

Sequential Trip Configurable:Assignable to Digital Inputs 1 to 7

Shipping Weight:7.7 kg or 17 lbs

Thermal Model Curve Biasing:Phase Unbalance, Hot/Cold Curve Ratio, Stator

    The GE SR489-P5-LO-A20-E is a versatile and robust relay designed specifically for the protection and management of generators. It supports both induction and synchronous generators, providing reliable performance across a range of frequencies including 25, 50, and 60 Hz. With its 40-character display, users can easily view value messages, diagnostics, and setpoints, making it an indispensable tool for maintenance and monitoring.

    This model is equipped with a 4-20 mA analog output, ideal for precise control and monitoring of generator operations. The unit is designed with a fully drawout case that ensures safety and ease of installation. It also includes digital inputs, allowing for customizable configurations and enhanced functionality. The 489-P5-LO-A20-E is a part of GE’s SR family of relays, which includes other advanced models such as the GE Multilin 469 Motor Protection Relay and the GE Multilin 735 Feeder Protection Relay.

    Designed for harsh environments, this relay offers excellent durability and reliability. It is suitable for various industrial applications where generator protection and management are critical. With its user-friendly interface and comprehensive diagnostic capabilities, the GE SR489-P5-LO-A20-E is a top choice for professionals seeking a reliable and efficient solution for their generator management needs.