Description

GE Multilin MIFIINI01E10HI00 MIF‑II Voltage Protection Relay

Technical Specifications

• Product Model: MIFIINI01E10HI00
• Brand: GE Multilin (General Electric)
• Warranty: One Year
• Input Voltage: 85‑265 VAC / 88‑300 VDC auxiliary power
• Operating Temperature: ‑20 °C ~ +70 °C panel‑mount
• Storage Temperature: ‑40 °C ~ +85 °C
• Response Time: Under‑/over‑voltage trip down to 20 ms
• Protection Class: IP52 front panel; IP20 rear terminals
• Accuracy Class: Voltage measurement ±0.5 % FS
• Output Frequency: 45‑65 Hz nominal system frequency
• Rated Current: 5 A nominal AC current sensing input
• Measuring Input: Three‑phase voltage sensing 0‑120 VAC; 5A current input
• Communication: Modbus‑RTU RS‑485; DNP3‑SLAVE protocol support
• Output Contacts: 6 programmable relay output contacts; 5A @250VAC resistive rating
• Human‑Machine Interface: Local LCD display, push‑button keypad, status LED indicators
• Certifications: UL, CE, IEC‑61850 compliant
• Mounting: Standard panel cut‑out mounting
• Dimensions / Weight: 182 mm × 144 mm × 185 mm; approx 2.7 kg

Product Overview

The MIFIINI01E10HI00 belongs to GE Multilin MIF‑II series multi‑function feeder protection relay, focused for voltage‑based protection and feeder monitoring in medium‑low voltage power distribution systems. It delivers comprehensive protection functions including over‑voltage, under‑voltage, voltage unbalance, loss‑of‑potential, over‑current and phase‑sequence detection. Local LCD keypad enables on‑site parameter setting, fault waveform capture and event history review. Modbus‑RTU communication connects to SCADA and DCS platforms for remote status monitoring, alarm reporting and setting modification. It records fault timestamps, metering values and disturbance reports to support post‑incident root‑cause analysis within heavy‑EMI power‑plant and substation cabinet environments.

This protection relay addresses distribution‑feeder protection challenges: integrated voltage‑centric feeder protection, built‑in metering and disturbance recording, local HMI operation, drop‑in spare‑part compatibility for legacy MIF‑II retrofit‑maintenance projects. Power‑system protection engineers, substation maintenance technicians and retrofit integrators benefit most. Typical applications: industrial substation feeder protection, power‑plant auxiliary bus voltage supervision, utility low‑voltage distribution panel protection.

Key Application Notes

‑Panel‑mount protection relay; cannot operate standalone. Requires voltage/current instrument transformers, DC or AC auxiliary supply and configuration software for setting upload. ‑MIFIINI01E10HI00 variant is optimized for voltage‑protection priority; other MIF‑II suffix variants have different feature sets, full part‑number matching is mandatory for replacement. ‑Not hot‑swap capable: Auxiliary power and secondary CT/VT circuits must be fully de‑energized before unit removal. ‑Original OEM production discontinued; aftermarket surplus/refurbished spare parts are widely circulated for legacy substation maintenance. ‑Observe CT short‑circuit safety procedures during installation and servicing. ‑Follow GE Multilin MIF‑II series hardware manual for VT/CT ratio configuration, protection threshold setup and Modbus address assignment.