GE Multilin 489-P5-HI-A20 Generator Protection Relay
The GE Multilin 489-P5-HI-A20 is a digital generator management relay designed for protection, monitoring, and control of small- to medium-sized generators in industrial and utility power systems. It integrates multiple protection functions, metering, communications, and diagnostics in a single draw-out relay.
Overview
The 489 series is widely used to protect generators from electrical faults, abnormal operating conditions, and thermal stress while providing real-time monitoring and communications.
Typical applications
- Industrial power plants
- Cogeneration facilities
- Marine/offshore generators
- Utility backup generators
Model Code Breakdown
489-P5-HI-A20
| Code | Meaning |
|---|---|
| 489 | Generator Management Relay series |
| P5 | 5A CT secondary inputs |
| HI | High-range control power (90–300 VDC / 70–265 VAC) |
| A20 | 4–20 mA analog outputs |
This decoding aligns with GE Multilin ordering logic for the 489 family.
Key Functions
Generator Protection
Provides comprehensive protection including:
- Stator differential & stator ground protection
- Loss of excitation protection (impedance-based)
- Reverse power protection
- Over/under voltage & frequency
- Phase & ground overcurrent
- Breaker failure detection
- Trip coil supervision
These functions help prevent damage from faults and abnormal conditions.
Monitoring & Diagnostics
The relay also acts as a monitoring system:
- Metering and event recording
- 12 RTD thermal inputs (generator temperature monitoring)
- Vibration monitoring via analog inputs
- Fault and alarm recording
- Simulation and testing features
Communications & Integration
Supports integration into modern SCADA/DCS systems:
- RS232 and RS485 communications
- 10Base-T Ethernet
- Protocols: Modbus RTU/TCP, DNP3
- PC configuration via EnerVista 489 software
Key Technical Specifications
Electrical
- Control power: 90–300 VDC / 70–265 VAC (48–62 Hz)
- CT inputs: 5A secondary
- Analog outputs: 4–20 mA
- Output relays: 6 Form-C contacts (10A)
Measurement & Accuracy
- Current accuracy: ±0.5% (<2×CT)
- Voltage accuracy: ±0.5% full scale
Environmental
- Operating temperature: −40°C to +60°C
- Humidity: up to 95% non-condensing
Design Advantages
- Draw-out case design → easy maintenance
- Integrated protection + monitoring → reduces panel space
- Sunlight-readable display for local operation
- Reliable operation in harsh industrial environments
Summary
The GE 489-P5-HI-A20 is a proven generator protection relay combining protection, control, monitoring, and communications in one platform. It is ideal for facilities needing dependable generator protection with industrial-grade reliability and integration capability.
Main brand :
ABB Allen-Bradley Alstom Bently Emerson Foxboro
GE MOOG Schneider Woodward HIMA Honeywell
First hand source, affordable price. Spot inventory!
•Shipping Port: Xiamen
•Ship to you via Fedex/DHL/TNT/UPS/EMS
•Package: Original packing with cartons
GE hot selling//large inventory//brand new//affordable price
| GE 151X1215DC20SA01 |
| GE 151X1215DC21MG01 |
| GE 151X1215DC10SA01 |
| GE 151X1215DC29SA01 |
| GE 151X1235BC01SA41 |
| GE 151X1235BC01SA01 |
| GE 151X1235DZ10PC35 |
| GE 151X1207BC02SA01 |
| GE 151X1207BC50SA01 |
| GE IS200EPSMG1AEC |
| GE IS200EGDMH1AAB |
| GE 151X1207BC52SA01 |
Q&A of our advantages:
Q: What is our primary advantage in product availability?
A: Our offers a wide range of industrial automation products with a high level of availability, ensuring quick delivery and minimal downtime.
Q: How does our ensure competitive pricing?
A: Our provides competitive pricing by leveraging strong supplier relationships and optimizing its supply chain.
Q: What sets our customer service apart?
A: Our customer service is distinguished by its knowledgeable support team and commitment to providing timely and effective solutions.
Q: How does our handle product quality?
A: Our ensures product quality through rigorous testing and quality control processes, backed by reliable manufacturer partnerships.
Q: Can our assist with obsolete or hard-to-find components?
A: Yes, our specializes in sourcing obsolete and hard-to-find components, helping customers maintain and upgrade their systems.
Welcome to inquiry,my friend!
Company Overview
Main Products
We specialize in supplying original imported spare parts for DCS, PLC, robotics, and large servo systems from leading global brands, including:
- FOXBORO | EMERSON | TRICONEX | XYCOM | BENTLY
- ROCKWELL | ABB | GE | Aen-Brady | YOKOGAWA
- HONEYWELL | RELIANCE | SCHNEIDER | MODICON
- Westinghouse | WOODWARD | Motorola | Rexroth | SEW
Our inventory includes authentic, brand-new components, including hard-to-find discontinued parts, ensuring reliable solutions for industrial automation needs.
⭐ Quality & Service Commitment
We deliver high-quality, stable products backed by exceptional after-sales support. While maintaining stringent quality control, we offer competitive pricing to maximize value for our customers.
✔️ Manufacturing Standards & Product Lifespan
All products comply with national and industry standards, guaranteeing performance and durability. When used correctly, our components match or exceed the lifespan of comparable market offerings. Our team provides expert guidance to help customers select the optimal models and specifications for their requirements.
💙 Fast & Reliable Delivery
We ensure timely shipments, typically delivering within 6 working days. For urgent needs, we offer expedited arrangements tailored to customer schedules.
👍🏻 Warranty & After-Sales Support
As an authorized supplier of original manufacturer parts, our products come with direct factory-backed warranties (typically 6 months to 1 year). In the rare event of a defect caused by manufacturing, we facilitate repairs or replacements through the original producer.
Why Choose Us?
- Strong technical capabilitieswith full testing and inspection resources
- Reliable performance & superior quality
- Customer-first philosophywith strict on-time delivery
- Fair pricing & long-term partnerships
- Trusted reputationacross industries
By prioritizing integrity, efficiency, and excellence, we’ve built lasting relationships with clients worldwide. Partner with us for dependable automation solutions tailored to your needs.
There are no reviews yet.