GE MIFIIPI11E20HI00 | Multilin MIF II Digital Feeder Relay

Model: MIFIIPI11E20HI00 Brand: GE (General Electric) / Multilin Series: MIF II (Digital Feeder Protection Series)

Core Positioning: The GE Multilin MIF II series digital feeder relays are economical modular protection devices for medium and low voltage power distribution networks. They can be used as main feeder protection or backup/auxiliary protection for transformers, generators, and motors, supporting three-phase/single-phase/ground fault detection and flexible networking.

Core Functions and Features:

Standard Protection: Delayed overcurrent (51P/51G), two-stage instantaneous overcurrent (50P1/50P2/50G1/50G2), thermal imaging protection (49).

Optional Extensions: Cold load start, circuit breaker failure/operating condition/maintenance, configurable logic, four-stage automatic reclosing.

Communication Capabilities: Dual serial ports (front RS232 + rear RS485), both supporting Modbus RTU, baud rate 300~19200bps, maximum 32 units per chain; expandable to fiber optic interface via DAC300/F485 converters.

HMI: 16×2 LCD display + 5-key keypad, 6 status LEDs (including ready/tripped), supports local setting and reset.

Data Logging: Event log, 5 fault reports, waveform recording (IEEE C37.111 format), data retention for at least 1 week after power failure.

Flexible Configuration: Dual setpoint group switching, 4 ANSI/IEC/IAC curves selectable, supports logic programming.

Key Technical Specifications:

Power Supply: DC 24~48Vdc/88~300Vdc or AC 88~264Vac/50~60Hz, power consumption ≤10W.

Measurement accuracy: ±1% at rated phase/ground current, ±3% at full scale.

I/O configuration: Fixed 2-channel digital input, 6-channel electromechanical C-type relay output (AC250V/16A, 100,000 cycles); some models support 2 inputs and 4 outputs user-defined configurations.

Environment: Operating temperature -20℃~+60℃, storage temperature -40℃~+80℃, humidity ≤95%, altitude ≤2000m, pollution degree 2.

Compliance certifications: ISO9001, CE, UL.

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