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GE Multilin 469-P5-HI-A20-E Motor Management Relay

Configured for motor protection, monitoring, and electrical data processing in the GE Multilin 469 Motor Management Relay platform, the GE Multilin 469-P5-HI-A20-E (469 Motor Management Relay) provides direct physical and electrical execution for three-phase motor protection functions.

Hardware Specifications

Parameter	Specification
Model	469-P5-HI-A20-E
Brand	GE Multilin
Weight	13 lbs
Dimensions	20 x 20 x 20 inches
Product Type	Motor Management Relay
Phase Current Inputs	5 A CT secondary inputs
Control Power Supply	90 to 300 VDC / 70 to 265 VAC, 48 to 62 Hz
Analog Outputs	4 channels, assignable 4-20 mA outputs
Digital Inputs	9 assignable digital inputs
Output Relays	6 Form C output relays
Communication Interfaces	Modbus RTU via RS232/RS485 and Modbus TCP/IP Ethernet
RTD Inputs	Up to 12 RTD inputs, including 100 Ohm Platinum, 100 Ohm Nickel, 120 Ohm Nickel, and 10 Ohm Copper
Display	Enhanced LCD front panel display with backlight

Firmware Flash Compatibility and Industrial Control Integration

The GE Multilin 469-P5-HI-A20-E uses embedded relay firmware to execute motor protection logic, measurement processing, and communication functions. Firmware flash compatibility must correspond with the installed 469 hardware configuration to maintain correct protection algorithms, I/O mapping, and communication operation. The relay exchanges operational data through Modbus communication channels for integration with industrial monitoring and control systems.

The relay processes current, voltage, frequency, power factor, and temperature signals to perform protective functions including overload, short circuit, phase imbalance, ground fault, undervoltage, overvoltage, and thermal capacity monitoring.

Frequently Asked Questions

Q: Does the 469-P5-HI-A20-E support hot-swap replacement during operation?
A: The relay is designed as a protection device installed in a relay panel or drawout configuration. Hot-swap operation should follow the equipment rack and system maintenance procedures.

Q: What are the available current input requirements for the relay?
A: The model uses 5 A phase CT secondary inputs for motor current measurement and protection calculations.

Q: Which communication protocols are available on this configuration?
A: This configuration supports Modbus RTU through serial interfaces and Modbus TCP/IP through the Ethernet communication port.

Field Installation Guidelines

Install the relay in a suitable protective enclosure with wiring separation between power conductors, CT circuits, control wiring, and communication cables.

Connect current transformer secondary wiring using proper polarity and terminal identification to maintain accurate current measurement and protection operation.

Use shielded communication cables where required by the site installation standard. Connect cable shields according to the grounding practice defined for the control system to reduce electrical noise coupling.

Verify control power voltage range before energizing the relay. Confirm all digital input assignments, analog output scaling, and communication parameters before placing the motor protection system into service.

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