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GE Multilin 369-HI-R-M-F-P1-0-E Motor Protection Relay

The GE Multilin 369-HI-R-M-F-P1-0-E, also cataloged as the 369 Motor Protection Relay, operates as a dedicated hardware component for motor protection, measurement, and trip control within GE Multilin motor management relay systems.

Hardware Specifications

Parameter	Specification
Model	GE Multilin 369-HI-R-M-F-P1-0-E
Brand	GE Multilin
Weight	10.00 lbs
Operating Temp	-40 deg C to +60 deg C
Power Consumption	20 W typical, 35 W maximum
Power Supply	50-300 VDC / 60-265 VAC, 50/60 Hz
Motor Application	Three-phase induction and synchronous motor protection
Current Inputs	1 A or 5 A secondary phase current inputs
Ground Current Input	1 A / 5 A secondary or 50:0.025 core balance CT
Voltage Inputs	50 to 240 VAC direct, up to 600 VAC via VT
RTD Inputs	12 programmable RTD channels
Output Relays	4 output relays
Digital Inputs	5 opto-isolated assignable inputs
Communication Ports	RS232, RS485 Modbus RTU, fiber optic ST port
Communication Protocol	Modbus RTU, optional Profibus-DPV1
Event Recording	Up to 256 events with trip logs and motor history

GE Multilin Industrial Control Integration Features

The 369-HI-R-M-F-P1-0-E incorporates GE Multilin motor protection functions for current, voltage, thermal, and mechanical condition monitoring. The relay firmware provides ANSI protection elements including 49 thermal overload, 50/51 overcurrent, 37 undercurrent, 46 negative sequence current, 50N/51N ground fault, 66 start supervision, 48/51R stall protection, and 27/59 voltage protection when the metering option is installed.

The communication architecture supports deterministic industrial control integration through RS485 Modbus RTU and fiber optic communication using an ST connector. The fiber interface provides electrical isolation from high-noise motor environments. The relay supports firmware flash compatibility for installed feature configurations and maintains recorded operating data including fault reports, trip records, start history, and running hours.

Frequently Asked Questions

Q: Does the GE Multilin 369-HI-R-M-F-P1-0-E support hot-swap replacement?
A: The relay is designed as a panel-mounted motor protection device. Hot-swap operation is not specified. Replacement procedures require verification of control power isolation and field wiring conditions before removal.

Q: How are RTD inputs configured on this relay model?
A: The P1 option provides 12 programmable RTD inputs supporting 100 ohm Platinum, 120 ohm Nickel, 100 ohm Nickel, and 10 ohm Copper RTD types for motor temperature monitoring.

Q: What communication interfaces are available on this configuration?
A: This configuration includes RS232 local interface, RS485 Modbus RTU communication, and a fiber optic port with ST connector. Profibus-DPV1 is available as an optional interface.

Field Installation Guidelines

Install the relay in a protected control enclosure with appropriate clearance for terminal access and communication connections. Verify that current transformer secondary wiring is correctly terminated before energizing the device.

Use shielded cables for low-level measurement signals including RTD circuits. Connect cable shields according to site grounding practices to minimize electromagnetic interference from motor feeders and switching equipment.

Separate power wiring, CT circuits, voltage sensing conductors, RTD wiring, and communication cables according to industrial control panel routing requirements. Confirm control voltage compatibility before applying the 50-300 VDC or 60-265 VAC supply input.

For fiber optic communication, maintain correct ST connector alignment and protect the optical cable from mechanical stress or excessive bending during installation.

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