GE Multilin MIF II PA55E10H100 Product Description

GE Multilin MIF II PA55E10H100 is a legacy digital feeder protection relay from GE’s M II family, designed for medium voltage distribution networks. It delivers integrated overcurrent, ground fault protection, breaker control, fault event recording and metering functions. This compact microprocessor-based relay is widely used as primary feeder protection and backup protection for transformers, generators and motors in power distribution systems, commonly stocked as spare replacement parts for existing substation assets.

Product Features

• Phase and ground overcurrent protection including 50/51, 50N/51N ANSI protection elements
• Built-in event sequence recording and oscillography for post-fault analysis
• Front 2x16 LCD display and keypad for local setup, status reading and fault viewing
• Front RS232 and rear RS485 ports with Modbus RTU communication protocol
• Programmable digital inputs, relay outputs and configurable LED indicators
• Supports multiple time-current curves for protection coordination
• Self-diagnostic functions to detect internal hardware faults automatically
• Works with AC or DC auxiliary power for substation cabinet installations
• Compatible with GE EnerVista software for configuration, testing and commissioning

Application Scenarios

• Primary feeder protection for medium voltage distribution substations
• Backup protection for power transformers, busbars, generators and large motors
• Industrial plant internal power distribution protection systems
• Utility distribution network maintenance and retrofitting projects
• Data center, hospital and factory critical power backup protection
• Replacement spare part for existing MIF II relay upgrade and overhaul

FAQ