PRODUCT INFORMATION
Product Overview
The General Electric 469-P5-LO-A20-E is a Multilin series motor management relay designed for medium to large motors. It features an enhanced faceplate for local status monitoring and navigation. The unit provides overtorque protection by tracking motor torque against user-defined trip limits. Ground fault monitoring detects fault current and removes the DC component from hazardous currents. This unit protects plant machinery from severe phase-to-ground fault conditions.
Integrated testing features allow engineers to evaluate setpoints without altering field wiring. The relay can simulate input values, active fault states, and pre-trip conditions directly. It includes twelve programmable RTD inputs for thermal monitoring across motor stator windings and bearings. A fully drawout case design includes automatic CT shorting bars for safe servicing. Digital communication interfaces enable direct integration into plant supervision and monitoring architectures.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Case Type | Fully drawout (automatic CT shorts) |
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| Control Power Range | DC 24 to 60 VDC, 20 to 48 VAC at 48 to 62 Hz |
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| RTD Inputs | 3 wire: 100 Ω Platinum (DIN.43760), 100 Ω Nickel, 120 Ω Nickel, 10 Ω Copper |
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| Analog Current Inputs | 0 to 1 mA, 0 to 20mA, or 4 to 20mA |
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| Control Power | 45 VA (max), 25 VA typical |
|---|
| Communications | RS232 port (1), RS485 ports (2) |
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TECHNICAL INFORMATION
Features
- Monitors overtorque conditions and initiates trip sequences when loads exceed set thresholds.
- Detects ground fault current while filtering DC components during electrical phase disturbances.
- Includes twelve programmable three-wire RTD inputs for localized motor thermal supervision.
- Features built-in simulation tools to test relay responses to simulated input values and faults.
- Utilizes a fully drawout mechanical case equipped with automatic CT shorting mechanisms.
- Supports external digital supervisory communications through one RS232 port and two RS485 ports.
TECHNICAL INFORMATION
Applications
- Protection and thermal supervision of medium-voltage industrial three-phase electric motors.
- Continuous load monitoring on industrial pumps, fans, compressors, and mechanical drive systems.
- Motor switchgear retrofits requiring automatic CT shorting drawout relay modules.
TECHNICAL INFORMATION
Connections / Interfaces
- One RS232 front or rear communication port for local diagnostic connections.
- Two RS485 serial communication ports for network automation integration.
- Analog current input channels accepting 0 to 1 mA, 0 to 20 mA, or 4 to 20 mA signals.
- Twelve three-wire RTD sensor inputs supporting Platinum, Nickel, and Copper sensor elements.
TECHNICAL INFORMATION
Installation Guidelines
- Mount the unit inside a switchgear panel using its fully drawout chassis configuration.
- Ensure the automatic CT shorting mechanism operates correctly before removing the relay chassis.
- Connect control operating power within the rated 24 to 60 VDC or 20 to 48 VAC range.
TECHNICAL INFORMATION
Configuration Guidelines
- Program trip and high-alarm thresholds for all connected three-wire RTD temperature channels.
- Use internal simulation functions to verify relay behavior against configured operating setpoints.
- Set the overtorque limits to protect downstream driven mechanical equipment from excessive load.
TECHNICAL INFORMATION
Compatibility
- Compatible with 100 Ohm Platinum, 100 Ohm Nickel, 120 Ohm Nickel, and 10 Ohm Copper RTD sensors.
- Interfaces with standard industrial supervisory control networks via serial RS485 connections.
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with 100 Ohm Platinum, 100 Ohm Nickel, 120 Ohm Nickel, and 10 Ohm Copper RTD sensors. Interfaces with standard industrial supervisory control networks via serial RS485 connections.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What control power voltage does the 469-P5-LO-A20-E require?
The relay operates on 24 to 60 VDC or 20 to 48 VAC power at 48 to 62 Hz.
Which RTD sensor types can connect to this relay?
It accepts 100 Ohm Platinum, 100 Ohm Nickel, 120 Ohm Nickel, and 10 Ohm Copper three-wire RTD sensors.
Does this Multilin relay support testing without live fault conditions?
Yes. Built-in simulation functions test setpoints by simulating input variables, pre-trip states, and fault scenarios.
What communication interfaces are integrated into this unit?
The unit features one RS232 port and two RS485 ports for serial communication and network integration.
