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

General Electric SR489-CASE 489-P5-HI-A20-E

General Electric Multilin SR489-CASE 489-P5-HI-A20-E Generator Management Relay

Availability: 9 left in stock

DescriptionThe General Electric Multilin 489-P5-HI-A20-E is a microprocessor-based generator management relay engineered for the comprehensive protection, control, and monitoring of...

SKU: SR489-CASE 489-P5-HI-A20-E

Manufacturer: General Electric
Product No.: SR489-CASE 489-P5-HI-A20-E
Product Type: Generator Management Relay
Product Origin: USA
Payment:T/T, Western Union
Weight: 7300g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Description

The General Electric Multilin 489-P5-HI-A20-E is a microprocessor-based generator management relay engineered for the comprehensive protection, control, and monitoring of small to medium-sized generators. As a key component of the SR family, it provides advanced features such as generator stator differential protection and detailed diagnostic logging to minimize troubleshooting time. This unit features a draw-out construction, allowing for efficient maintenance and reduced system downtime.

Features

Comprehensive generator protection including stator differential, reverse power, overexcitation, and inadvertent energization.
Enhanced display unit for improved local monitoring and setpoint management.
Supports RTD and analog inputs for monitoring critical parameters like bearing temperature and vibration.
Integrated waveform capture, event recording, and data logging capabilities.
Communication support via RS232, RS485, and Modbus protocols.
Built-in waveform simulation tools for setpoint verification.

Applications

Primary and backup protection for industrial power generation systems.
Synchronization and protection management in cogeneration plants.
Critical monitoring for high-demand industrial power environments.
Stator and bearing temperature monitoring for generator health diagnostics.

Technical Specifications

Model	SR489-CASE 489-P5-HI-A20-E
Manufacturer	General Electric (GE Multilin)
Phase Current Inputs	5 Amp
Control Power	90-300 VDC / 70-265 VAC (48-62 Hz)
Analog Outputs	4-20 mA
EFT Standard	IEEE/ANSI C37.90.1
Impulse Voltage Withstand	5 kV
3rd Harmonic Timing Accuracy	+/- 3.0 s

Installation Guidelines

Ensure the device is installed in a clean, dry environment protected from excessive vibration and extreme temperatures.
Verify that the control power supply matches the 90-300 VDC or 70-265 VAC rating before energizing.
Use shielded communication cables for RS485 connections to minimize EMI interference.
The unit utilizes a draw-out design; ensure the chassis is properly seated and locked to maintain electrical continuity.
Always power down the system before inserting or removing the relay module from the rack to prevent electrical arcing or damage to internal components.
Follow standard ESD (Electrostatic Discharge) precautions when handling the module internals.

FAQs

What is the 489-P5-HI-A20-E?

The GE Multilin 489-P5-HI-A20-E is a microprocessor-based generator management relay designed for protecting, controlling, and monitoring small to medium-sized generators.

What is the function of the 489-P5-HI-A20-E?

It offers complete generator protection, including stator thermal protection, bearing over-temperature monitoring, and negative sequence overcurrent for rotor protection.

How do I view metered values?

Metered values (voltage, current, power) are available on the front panel display or via communication ports.

Does the relay support 4-wire RS485?

No, the 489-P5-HI-A20-E communicates only in 2-wire half-duplex mode.

What are the analog output ranges?

The analog outputs are 4 to 20 mA.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.