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GE Multilin 239-AN-H Motor Protection Relay

GE Multilin 239-AN-H Motor Protection Relay

Product Description

The GE Multilin 239-AN-H is a microprocessor-based motor protection relay designed for three-phase AC motors and their drive systems. Part of the 239 series, it provides comprehensive protection including thermal overload, phase unbalance, jam...

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Availability: Low stock: 10 left

SKU: 239-AN
Vendor: GE Fanuc
Category: Motor Protection Relay
Related Series:

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Product Description

The GE Multilin 239-AN-H is a microprocessor-based motor protection relay designed for three-phase AC motors and their drive systems. Part of the 239 series, it provides comprehensive protection including thermal overload, phase unbalance, jam detection, undercurrent, and ground fault monitoring. The “-H” designation indicates harsh environment conformal coating for protection against moisture, dust, and chemical exposure.

The relay supports a wide AC/DC supply range and connects to automation networks via RS485 Modbus RTU, enabling remote monitoring and configuration. Its robust design helps prevent motor damage, reduce downtime, and extend asset life in demanding industrial settings.

Technical Specifications

Parameter Specification
Model Number 239-AN-H
Protection Elements Thermal Overload, Ground Fault, Phase Unbalance, Jam, Undercurrent
Input Voltage (AC) 70–265 VAC, 50/60 Hz
Input Voltage (DC) 90–300 VDC
Power Consumption 30 W / 30 VA Max
Contact Rating 10 A at 250 VAC
Communication Interface RS485 (Modbus RTU)
Environmental Protection Harsh Environment Conformal Coating
Operating Temperature –20°C to +60°C
Weight 1.81 kg

Key Operational Features

  • Advanced Inhibit Logic: Prevents motor restart until thermal conditions are safe.

  • Robust Environmental Resilience: Conformal coating protects against dust, humidity, and corrosive conditions.

  • Network Connectivity: RS485 enables remote monitoring and parameter adjustments via SCADA/PLC systems.

  • Proven Reliability: Solid-state platform provides precise protection even in electrically noisy environments.

Frequently Asked Questions

Does the 239-AN-H require external hardware for ground fault protection?
No, the relay includes integrated ground fault protection, but CT configuration must match the motor circuit design.

Can the communication port be used to program the relay settings?
Yes, the RS485 Modbus RTU port allows full remote configuration and status monitoring with compatible software.