GE Multilin SR489-P5-LO-A20-E | Generator Management Relay | 5A Phase CT-Xiongba Automation

Warranty： 1 year

Quality: Original module

Condition： New / Used

Certificate: COO(Certificate Of Original)

Warehouse: in -stock

HS Code:85389000.00

Delivery term:Express DHL/FedEx/UPS

Delivery time: Shipped in 1 week after payment

Payment term: T/T | Full payment

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Product Description & Procurement Process

Same Family / Related Models

GE Multilin SR489-P5-LO-A20-E: Expert Generator Protection and Management

The GE Multilin SR489-P5-LO-A20-E is a sophisticated, microprocessor-based relay designed for the comprehensive protection, monitoring, and management of synchronous or induction generators. As a cornerstone of the GE Multilin SR family, the 489 is built to safeguard your most valuable power generation assets against electrical faults and mechanical stress.

Ideal for small to medium-sized generators in utility, industrial, and marine applications, the SR489-P5-LO-A20-E integrates protection, metering, and high-speed communication into one unit. By providing real-time diagnostics and a high-accuracy thermal model, it prevents catastrophic generator damage, reduces downtime, and ensures a stable power supply for your critical operations.

Technical Specifications & Configuration

Feature	Details (Model: SR489-P5-LO-A20-E)
Phase Current Inputs (P5)	5 Amp secondary CTs
Control Power (LO)	Low Range: 24–48 VDC (Typical for DC Battery Banks)
Analog Outputs (A20)	Four 4-20 mA (or 0-20 mA) Outputs
Display Type (E)	Enhanced Faceplate with Detailed Metering
Protection Functions	Stator Differential, Overexcitation, Reverse Power, Ground Fault
Monitoring	12 RTD Inputs (Stator, Bearing, Ambient)
Communication	RS232, RS485 (Modbus RTU), Optional Ethernet
Condition	100% Original & Certified / New Old Stock (NOS)

Key Features & Operational Role

Generator Capability	Industrial Stability Benefit
Precision Protection	Specialized functions like 100% Stator Ground Protection and Reverse Power prevent motoring and internal winding damage.
Advanced Thermal Model	Predicts thermal limits via RTD and current inputs, allowing maximum power output without risking insulation failure.
LO Power Compatibility	Configured for 24-48V DC circuits, ideal for industrial battery banks and specialized mobile power units.
Enhanced Interface (E)	Upgraded display clearly shows Volts, Amps, kW, kVAR, and Hz, plus trip diagnostics even in high-glare environments.
System Versatility	Flexible logic for diverse prime movers, including diesel generators and industrial steam turbines.

Why Choose Us? (Your Generator Hardware Expert)

Service Pillar	Value for Global Energy Projects
Guaranteed Originality	We strictly supply 100% genuine GE Multilin SR489 units. Every relay is inspected for original factory seals and verified revisions.
Live Technical Inspection	Before shipping, we verify the "LO" power rating and "P5" CT inputs via live video to ensure a perfect match for your site requirements.
Energy Sector Inventory	Dedicated stock of SR489/SR469 modules to support energy hubs in Saudi Arabia, UAE, and Kazakhstan.
Reinforced Protection	Double-walled, ESD-safe packaging ensures sensitive relays arrive in factory condition at even the most remote locations.

Frequently Asked Questions (FAQ)

Q1: Can I use the "LO" version in a panel with 220V AC control power?

A: No. The "LO" version will be damaged if connected to high-voltage AC. For 110V/220V systems, you must use the "HI" version. Please confirm your control voltage before ordering.

Q2: What is the main difference between the 469 and the 489?

A: While they look similar, the 489 contains specific algorithms for generator protection (like 100% Stator Ground Fault) that are not present in the 469 motor relay.

Q3: Is this relay a "Draw-out" design?

A: Yes, the SR489 features a draw-out case, allowing for fast maintenance or replacement without re-wiring the entire terminal block at the back of the panel.

Q4: How fast can you deliver for an emergency power system failure?

A: We prioritize "Generator Offline" emergencies. Express air freight (DHL/FedEx) typically delivers to major industrial centers in 3–5 business days.

Request a Professional Quote Today

Secure the ultimate protection for your power generation assets. Secure an authentic GE Multilin SR489-P5-LO-A20-E today. Contact Xiamen Xiongba E-commerce Co., Ltd. for actual stock photos and a competitive quote.