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735-5-5-HI-485 GE Multilin Feeder Protection Relay

735-5-5-HI-485 GE Multilin Feeder Protection Relay

Product Description

The 735-5-5-HI-485 is a high-precision feeder protection relay from the GE Multilin family. It is designed for the protection and monitoring of electrical distribution feeders in industrial and utility power...

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Availability: Low stock: 10 left

SKU: 735-5-5-HI-485
Vendor: GE Fanuc
Category: Feeder Protection Relay
Related Series:

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Product Description

The 735-5-5-HI-485 is a high-precision feeder protection relay from the GE Multilin family. It is designed for the protection and monitoring of electrical distribution feeders in industrial and utility power systems.

This microprocessor-based relay combines instantaneous and time-delayed overcurrent protection with ground fault detection, ensuring reliable feeder protection and system stability. Although now discontinued, it remains an essential component for maintaining legacy switchgear and power monitoring infrastructures.

Technical Specifications

Parameter Specification
Product Model 735-5-5-HI-485
Primary Protection 50/51 Phase Overcurrent (Instantaneous and Time Delay)
Secondary Protection 50G/51G Ground Fault (Instantaneous and Time Delay)
Power Supply (HI) 90–300 VDC or 70–265 VAC
System Frequency 50/60 Hz auto-sensing
Communication RS485 2-wire serial port (SCADA integration)
Control Digital setpoint adjustment for trip curves
Measurement Type True RMS current sensing
Form Factor Draw-out or fixed-mount relay housing
Net Weight 5.35 kg

Application Scenarios

The 735-5-5-HI-485 is commonly deployed in:

  • Utility substations

  • Large industrial power distribution systems

  • Retrofitted switchgear requiring RS485 SCADA integration

  • Facilities with varying DC battery or AC auxiliary power sources

It protects feeder circuits against short circuits, overloads, and ground faults while supporting remote monitoring and fault analysis.

Technical FAQs

Is the 735-5-5-HI-485 still in production?
No. The model is discontinued by the manufacturer but remains available as refurbished or surplus units to support legacy installations.

What does “5-5” indicate in the model number?
The “5-5” designation signifies compatibility with 5 A Phase and 5 A Ground current transformer secondary inputs, ensuring standard CT integration for feeder protection.