Product Core Brief

• Model: 469-P1-HI-A20
• Brand: GE Multilin
• Series: SR469 Motor Protection System
• Core Function: Protects, controls, and monitors medium-voltage three-phase motors with thermal overload, ground fault, RTD temperature monitoring, and analog retransmission.
• Product Type: Motor Management Relay
• Key Specs: P1 = 1 A phase CT | HI = universal control power | A20 = 4×4–20 mA analog outputs
• Condition: New Original / New Surplus

Product Introduction

The GE 469-P1-HI-A20 is a Multilin SR469-series motor management relay designed for medium- and large-horsepower three-phase motors. It provides thermal overload protection, ground-fault protection, phase loss/unbalance, jam/stall detection, start supervision, and RTD-based temperature monitoring.

The “P1” option means the relay is configured for 1 A phase CT secondaries, so it must not be substituted for a P5 / 5 A version without verifying CT wiring. The “HI” control power typically accepts 90–300 VDC or 70–265 VAC, 48–62 Hz. The “A20” option adds four isolated 4–20 mA analog outputs for retransmitting motor current, thermal capacity, power, or temperature to a DCS/PLC. The relay supports EnerVista 469 configuration software and can be ordered with conformal coating for harsh environments.

GE has discontinued manufacturing of the 469 platform; the recommended alternatives are the GE Multilin 859 or 869 relays.

Key Technical Specifications

Confirm exact RTD count, digital I/O, and communication options against the relay nameplate and order code before commissioning.

Quality Control Process (DYNAMIC GENERATION)

1. Ordering code verification: Confirm 469-P1-HI-A20 matches P1, HI, and A20 options; check for optional conformal coating if required.
2. Control power test: Apply 90–300 VDC or 70–265 VAC and verify stable boot, display, and LED indication.
3. CT and ground-fault check: Inject 1 A phase current and ground CT current; verify overload, unbalance, stall, and ground-fault responses.
4. Analog output calibration: Verify all four 4–20 mA outputs against a precision meter and confirm scaling for current, thermal capacity, or temperature.
5. Communication and RTD validation: Test RS232/RS485 connectivity via EnerVista 469, verify RTD readings, then pack in anti-static protective packaging.

Replacement Pitfall Guide (DYNAMIC GENERATION)

❗ Do not mix P1 and P5. P1 is for 1 A CT secondaries; replacing it with a P5/5 A unit on 1 A CTs will cause incorrect current measurement and protection errors.

❗ Confirm analog output scaling. The A20 option provides 4–20 mA outputs; substituting an A1/0–1 mA version will break DCS/PLC integration.

❗ Verify RTD and communication options. The base code 469-P1-HI-A20 does not fully define RTD count, Ethernet, or conformal coating; check the full nameplate or order suffix.

❗ Plan for 469 discontinuation. The 469 series is no longer manufactured; long-term replacements should evaluate migration to the GE Multilin 859 or 869.

Keep these in mind and you’ll cut 90% of rework time.

Compatibility Matrix & Benchmarks

Benchmarks:

• 1 A phase CT input with dedicated ground-fault CT support.
• Four isolated 4–20 mA analog outputs for DCS/PLC retransmission.
• Universal HI control power: 90–300 VDC / 70–265 VAC.
• Draw-out construction for faster replacement in medium-voltage switchgear.