Description

GE Multilin 369-HI-0-0-0-0-0-E Motor Protection Relay

The GE Multilin 369-HI-0-0-0-0-0-E, also cataloged as the 369 Motor Protection Relay, operates as a dedicated hardware component for three-phase motor protection, monitoring, and control signal processing within GE Multilin motor management systems.

Hardware Specifications

Parameter	Specification
Model	369-HI-0-0-0-0-0-E
Brand	GE Multilin
Origin	USA
Weight	3.6 kg
Dimensions	280 mm x 110 mm x 205 mm
Operating Temp	-25 deg C to +60 deg C
Power Consumption	Nominal 10 W, maximum 20 W
Product Type	Motor Protection Relay
Control Power	50-300 VDC or 60-265 VAC, 50/60 Hz
Current Inputs	1 A or 5 A phase CT inputs, programmable
Ground CT Input	1 A, 5 A, or 50:0.025 core balance CT
Frequency Tracking	20 Hz to 70 Hz
Output Relays	4 output relays: Trip, Alarm, Auxiliary 1, Auxiliary 2
Communication Ports	Front RS232 and rear RS485 Modbus RTU
Analog Output	One programmable 4-20 mA or 0-1 mA output
Display	40-character 2 x 20 display with 14-key keypad
Diagnostics Option	Enhanced faceplate, LED indicators, Motor Health Report, Start Data Logger

Firmware Flash Compatibility and Industrial Control Communication

The GE Multilin 369-HI-0-0-0-0-0-E integrates firmware-based protection logic for motor operating state evaluation, event recording, and configuration management. Firmware flash compatibility is maintained through supported GE Multilin configuration tools and device firmware procedures.

The relay processes current measurement inputs, thermal model calculations, and programmable protection parameters to execute functions including overload protection (ANSI 49/51), locked rotor detection, phase unbalance monitoring, ground fault protection, and loss of load detection.

The communication interface provides configuration and data access through RS232 and RS485 links. Modbus RTU communication supports integration with industrial control networks for relay status, measurement values, event records, and parameter exchange.

Frequently Asked Questions (FAQ)

Q: Does the 369-HI-0-0-0-0-0-E support hot-swap replacement during operation?
A: No. The relay uses a fixed panel-mount enclosure and requires power isolation before removal, wiring changes, or hardware replacement.

Q: What current transformer inputs are supported by the relay?
A: The relay accepts programmable 1 A or 5 A phase CT secondary inputs and supports selectable ground CT configurations.

Q: How is configuration data transferred to the relay?
A: Configuration and monitoring data are transferred through the front RS232 interface or rear RS485 Modbus RTU communication connection using compatible configuration software.

Field Installation Guidelines

Install the GE Multilin 369-HI-0-0-0-0-0-E in a protected panel enclosure with adequate clearance for wiring access and heat dissipation.

Use shielded signal cables for communication and analog output wiring where required by the installation environment. Connect cable shields according to the site grounding practice to reduce electrical interference.

Route CT wiring separately from high-voltage power conductors to reduce induced noise. Verify CT polarity, secondary connections, and grounding before energizing the motor protection circuit.

Confirm the control voltage selection matches the installed supply source before applying power. Perform parameter verification, input signal validation, and relay output testing during commissioning.

Specifications

• Brand: General Electric

Advantages

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