GE SR489-P5-LO-A20

The GE SR489-P5-LO-A20 is a motor protection relay from the Multilin SR Series (formerly GE Multilin). Below are its key technical parameters:

General Specifications:

• Model: SR489-P5-LO-A20
• Type: Motor Protection Relay
• Application: Designed for large motors (synchronous/asynchronous)
• Functions: Overload, short-circuit, ground fault, phase unbalance, thermal protection, etc.

Electrical Ratings:

• Supply Voltage (Auxiliary Power):
  • Standard: 85–265V AC/DC or 18–80V DC (depending on model variant)
  • A20 Suffix: Likely 120V AC/DC (confirm with datasheet)
• Current Input:
  • Phase CT Range: Typically 1A or 5A (configurable)
  • Ground CT: Optional (depends on configuration)

Protection Features:

1. Overcurrent Protection:

• • Instantaneous, Definite/Inverse Time (DTL/IDMT)

2. Thermal Overload Protection:

• • Based on I²t algorithm

3. Ground Fault Protection:

• • Sensitive ground fault detection (optional)

4. Unbalance/Undervoltage:

• • Negative sequence current (for phase unbalance)

5. Locked Rotor Protection:

• • Stalling protection with programmable delay

6. Start Protection:

• • Start inhibit & restart supervision

Control & Communication:

• Relay Outputs:
  • 4–6 programmable Form-C contacts (depends on model)
• Communication Protocols:
• Modbus RTU (RS485)
  • Optional Ethernet (SR4XX models with -E suffix)
• HMI Interface:
  • LCD display + keypad for local control

Mechanical & Environmental:

• Enclosure: Standard panel-mount
• Operating Temperature: -20°C to +60°C
• Certifications: UL, CE, IEC standards

Main Brand:

ABB       Allen-Bradley      Alstom      Bently       GE      MOOG 

Schneider   Woodward   HIMA   Honeywell   Emerson   Foxboro

First hand source, affordable price. Spot inventory!

•Shipping Port: Xiamen

•Ship to you via Fedex/DHL/TNT/UPS/EMS

•Package: Original packing with cartons

FAQ

Q:What is the earliest time when you can make delivery?

A:We will make delivery once received your payment.

Q:If the product can’t work, can it be returned?

A:We provide one year warranty.

Q:How easy is it to obtain items?

A:New are no longer continuously manufactured, and therefore supply is scarce.

However, at SAUL we specialize in sourcing hard-to-find products, and although

the lead time varies, the average is between 5-7 business days.

Q:What is the typical price for the items?
A:SAUL ELECTRIC always gives customers excellent service and prices that

are highly competitive.Requirements for delivery and availability do affect pricing.

Introduction to SAUL ELECTRIC:

SAUL ELECTRIC is a leading supplier specializing in industrial automation PLC modules and control systems. Committed to helping customers improve productivity, reduce downtime, and provide high-quality services and diversified projects.

Main advantages:

1. Integrating multiple renowned brands: SAUL ELECTRIC integrates multiple renowned brands in the field of industrial automation, providing customers with a wide range of product choices and high-quality solutions.
2. Excellent Service: SAUL ELECTRIC is committed to providing customers with excellent service, including professional technical support, fast response, and reliable delivery.
3. Diversified projects: SAUL ELECTRIC has rich project experience and can provide customized solutions to meet the needs of different customers.
4. Professional service team: SAUL ELECTRIC has an experienced professional team that can provide customers with the most effective solutions.

The mission of SAUL ELECTRIC is to help customers improve productivity, reduce downtime, and provide high-quality services and diversified projects. SAUL ELECTRIC is your trusted partner !