Description

GE Multilin MIFIIPI11E10HI00 MIF II Feeder Protection Relay

The GE Multilin MIFIIPI11E10HI00, also cataloged as the MIF II Feeder Protection Relay, operates as a dedicated hardware component for feeder current protection and monitoring within GE Multilin MIF II protection platforms.

Hardware Specifications

Parameter	Specification
Model	MIFIIPI11E10HI00
Brand	GE Multilin
Dimensions	Compact draw-out / panel mount enclosure; dimensions not specified
Series	Multilin MIF II
Product Function	Feeder / Overcurrent Protection Relay
Current Inputs	1 A / 5 A selectable phase current inputs
Auxiliary Power Supply	88-300 VDC / 88-264 VAC
Communication Interface	RS485 serial communication with Modbus RTU protocol
Display Interface	Front panel LCD with LED status indicators and keypad
Mounting Type	Draw-out / panel mount compact case
Protection Functions	Phase overcurrent, earth fault, thermal overload protection
Measurement Capability	RMS phase and neutral current measurement
Event Recording	Time-stamped event and fault current recording
Diagnostics	Continuous hardware and software integrity monitoring

Profinet / EtherNet-IP and Firmware Flash Compatibility

The GE Multilin MIF II platform uses embedded microprocessor-based protection logic with configurable firmware functions for feeder monitoring and protection execution. The MIFIIPI11E10HI00 provides RS485 Modbus RTU communication for SCADA and DCS integration rather than Ethernet-based deterministic industrial networks. Firmware compatibility is managed through the MIF II hardware and software configuration environment, allowing protection parameters, monitoring functions, and relay settings to remain aligned with the installed device configuration.

The relay supports configurable digital inputs and programmable output contacts for electrical control sequences. The selectable 1 A and 5 A CT input configuration allows adaptation to different current transformer secondary ratings in feeder protection circuits.

Frequently Asked Questions (FAQ)

Q: Does the MIFIIPI11E10HI00 support hot-swap replacement?
A: The available technical documentation does not specify hot-swap operation. Replacement should follow standard relay isolation procedures, including control power removal and verification of safe electrical conditions before module removal.

Q: What communication protocol is available for system integration?
A: The relay provides an RS485 serial interface using Modbus RTU protocol for connection with SCADA and DCS monitoring systems.

Q: What current input ratings are supported by the protection relay?
A: The unit supports selectable 1 A and 5 A phase current inputs for connection to compatible CT secondary circuits.

Field Installation Guidelines

• Install the relay in a suitable panel enclosure with mechanical support for the draw-out mounting arrangement.
• Verify auxiliary power supply wiring before energizing. The HI power supply accepts 88-300 VDC or 88-264 VAC control power ranges.
• Use properly shielded communication wiring for the RS485 Modbus RTU interface and terminate the network according to RS485 installation practice.
• Separate CT signal wiring from high-current power conductors to reduce electromagnetic interference.
• Confirm phase CT polarity and grounding connections before enabling protection functions.
• Verify programmable output relay wiring according to the external trip and control circuit requirements.
• Perform relay self-diagnostic checks and confirm protection settings after installation.

Specifications

• Brand: General Electric

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems