GE Multilin 489-P5-HI-A20-E-H 489 Generator Management Relay System

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Manufacturer: GE Multilin
Model Number: 489-P5-HI-A20-E
Product Type: Generator Management Relay
Manual Part Number: 1601-0150-AF
Manual Order Code: GEK-106494P
Condition: Brand New
Shipping Weight: 12 kg
Country of Origin: USA

Product Overview

The GE Multilin 489-P5-HI-A20-E is a high-performance Generator Management Relay engineered for advanced protection, monitoring, and control of generator systems. Designed for operation in demanding environments, this relay incorporates conformal coating protection, rugged construction, and an enhanced LCD display to support effective system oversight in critical power generation applications.

This relay provides comprehensive protection features—such as stator differential, 100% stator ground, reverse power, and loss of excitation protection—making it ideal for industrial generator management. The 489 relay supports multiple communication protocols and interfaces, enabling seamless integration with SCADA and automation systems.

Key Features

• Advanced Protection Functions:

• Generator stator differential protection

• 100% stator ground protection

• Loss of excitation protection

• Reverse power (anti-motoring) protection

• Overexcitation protection

• Distance backup protection

• Rugged Design:

• Protective conformal coating for harsh environmental conditions

• Robust hardware with extended temperature and vibration tolerance

• Communication & Integration:

• RS232, RS485, and 10 Mbps copper Ethernet ports

• Supports Modbus™ RTU, Modbus™ TCP/IP, and DNP 3.0 Level 2

• Compatible with EnerVista 489 Setup Software for easy configuration and real-time monitoring

• User Interface:

• Enhanced LCD Display with larger screen for improved visibility

• Clear status LED indicators for relay operation, faults, and communication activity

Technical Specifications

LED Status Indicators

• Output Status LEDs:

• Trip (1)

• Auxiliary (2, 3, 4)

• Alarm (5)

• Service (6)

• Generator Status LEDs:

• Breaker Open / Closed

• Hot Stator

• Negative Sequence

• Ground Fault

• Loss of Field

• VT Failure

• Breaker Failure

• Relay Status LEDs:

• 489 In Service

• Setpoint Access

• Computer RS232

• RS485 / Auxiliary RS485 Activity

• Alternate Setpoints Active

• Reset Possible

• Message Active

Supported Accessories

• EnerVista 489 Setup Software

• Mounting Panels: SR 19-1, SR 19-2

• SCI Communication Module

• Phase CTs (HGF3, HGF8)

• Collars: 489 1 ⅜ inch and 489 3-inch collar

Documentation

For more detailed parameters, wiring diagrams, and configuration guidelines, refer to the official product manual:
Manual Title: GE Multilin 489 Generator Management Relay System
Model Reference: 489-P1-HI-A20-E
Manual Part Number: 1601-0150-AF
Manual Order Code: GEK-106494P