Product Description

The GE Multilin 469-P1-HI-A20-E-H is a high-performance, digital motor protection relay designed for the comprehensive management of medium and large horsepower motors. As part of the globally recognized 469 series, this unit provides advanced protection, monitoring, and control functions integrated into a single, ruggedized chassis. It is specifically engineered to safeguard critical motor assets in high-demand industries such as oil and gas, mining, and power generation.

This specific configuration (-E) features conformal coating, providing superior resistance against moisture, dust, and chemical contaminants. The relay utilizes sophisticated thermal modeling to prevent motor overheating while maximizing operational uptime. With its enhanced faceplate and EnerVista software compatibility, engineers can easily perform motor health assessments, trend data, and configure complex setpoints to match specific industrial load profiles.

Technical Specifications

• Manufacturer: GE Multilin / GE Fanuc

• Model Number: 469-P1-HI-A20-E-H

• Protection Class: Comprehensive Motor Management (Overload, Phase Loss, Stall, etc.)

• Current Inputs: 1A CT secondaries (P1 designation)

• Control Power: High-range power supply (HI designation: 90–300 VDC or 70–265 VAC)

• Analog Outputs: 4 channels, 0 to 1 mA range (A20 designation)

• Digital Inputs: 9 opto-isolated digital inputs for status and control

• Environmental Protection: Conformal Coated (E) for harsh/corrosive environments

• Display Interface: Enhanced faceplate with a high-visibility 40-character LCD

• Communication: * Front-panel RS232 port for direct PC configuration

• Rear RS485/RS422 ports for SCADA/DCS integration

• Operating Temperature: -40°C to +60°C (-40°F to +140°F)

• Firmware/Software: Supported by EnerVista 469 setup software

• Physical Weight: 4.8 kg (4800g)

• Manufacturing Origin: USA

Application Scenarios

The 469-P1-HI-A20-E-H is the standard for high-reliability motor protection in:

• Mining & Aggregates: Protecting large conveyors, crushers, and grinders in dust-heavy environments.

• Water & Wastewater: Managing high-capacity vertical turbine pumps and intake motors.

• Oil & Gas Refineries: Safeguarding compressor and blower motors in corrosive atmospheric conditions.

• Power Plants: Protecting critical auxiliary motors and cooling water pumps.