239 Series | GE Multilin Motor Protection Relay Replacement
Manufacturer: GE Fanuc
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Part Number: 239
Condition：New with Original Package
Product Type: Motor Protection Relay Replacement
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Description – GE Multilin 239 Motor Protection Relay
Overview
The GE Multilin 239 motor protection relay provides comprehensive protection for three-phase AC motors operating in demanding industrial environments. It monitors thermal overload conditions, phase unbalance, mechanical jams, and electrical faults that can damage motors. Moreover, the relay includes powerful diagnostics and event recording that help maintenance teams analyze issues quickly and prevent unexpected downtime. Although discontinued, the 239 remains widely used due to its reliability and proven field performance.
Functional Highlights
The relay combines advanced protection functions with flexible control features to support safe motor operation. Its RTD-based thermal monitoring delivers accurate temperature tracking during heavy load conditions. In addition, programmable logic and multiple alarm outputs help operators respond quickly to abnormal events. The relay also provides simulation tools that allow easy verification during routine maintenance. Therefore, users gain a dependable platform that protects motors and associated mechanical equipment.
Technical Specifications
| Specification | Details |
|---|---|
| Model / Part Number | GE Multilin 239 |
| Type | Motor Protection Relay |
| Manufacturer | GE Vernova – GE Grid Solutions |
| Protection Functions | Thermal overload (RTD-based), phase unbalance, ground fault, jam, locked rotor, undercurrent, overcurrent, loss of load |
| Inputs | Multiple RTDs for thermal sensing; CT inputs for current measurement |
| Control Functions | Trip and alarm outputs, breaker control, programmable logic |
| Monitoring | Event logging, diagnostics, simulation and testing tools, cause-of-trip recording |
| Communication | RS485 serial port, Modbus RTU, optional networking |
| User Interface | Front panel display with keypad and status LEDs |
| Operating Temperature | –40 °C to +70 °C |
| Mounting | Panel mount or rack mount |
| Certifications | CE, UL, CSA |
| Options | Harsh Environment Conformal Coating available |
| Status | Discontinued by manufacturer |
| Recommended Replacements | GE Multilin 339, 859, 869, P24 Agile |
FAQ
Q1: What types of motors can the GE 239 protect?
It protects three-phase AC motors used in industrial, commercial, and utility environments.
Q2: Does the relay support thermal monitoring?
Yes, it accepts multiple RTDs to provide precise thermal overload protection.
Q3: Which communication protocol is included?
The relay supports Modbus RTU via an RS485 serial interface.
Q4: Is this product still manufactured by GE?
No, production has ended, but replacements such as the Multilin 339 or 869 are recommended.
Q5: Is a harsh-environment version available?
Yes, a conformal-coated model is available for corrosive or high-moisture environments.