Product Core Brief
- Model: 469-P1-HI-A20-E
- Brand: GE Multilin
- Series: SR469 Motor Management Relay
- Core Function: Protects and manages medium-voltage three-phase motors with thermal overload, ground-fault, jam/stall, RTD temperature monitoring, metering, and 4–20 mA analog retransmission.
- Product Type: Motor Management Relay
- Key Specs: 90–300 VDC / 70–265 VAC control power | 1 A phase CT input | Enhanced HMI | 4 analog outputs | Conformal coating | RS485 / RS232
- Condition: New Original / New Surplus
Product Introduction
GE Multilin 469-P1-HI-A20-E is a member of the SR469 motor management relay family, designed for medium- and large-horsepower three-phase motors. It provides thermal overload, phase loss, unbalance, ground-fault, jam/stall, start supervision, and RTD-based temperature protection, along with full electrical metering and motor-health diagnostics.
The “P1” option indicates 1 A phase CT secondary compatibility, while “HI” adds the enhanced front panel with a larger LCD display. The “A20” option provides isolated 4–20 mA analog outputs for DCS/PLC integration, and “E” denotes conformal coating for improved environmental resistance. GE Vernova has discontinued manufacturing of the 469 series, with the Multilin 859 or 869 named as successors.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | GE Multilin |
| Part Number | 469-P1-HI-A20-E |
| Product Type | Motor Management Relay |
| Control Power | 90–300 VDC / 70–265 VAC, 48–62 Hz |
| Phase CT Input | 1 A secondary (P1 option) |
| Ground-Fault Input | Core-balance / residual ground CT |
| RTD Inputs | Up to 12 channels (Pt100/Ni120) |
| Analog Outputs | 4 × 4–20 mA (A20 option) |
| Digital Inputs | 9 opto-isolated inputs |
| Communication | RS485 Modbus RTU, RS232 front port |
| Display | Enhanced 40-character LCD |
| Conformal Coating | Yes (E option) |
| Operating Temperature | -40°C to +60°C |
| Storage Temperature | -40°C to +80°C |
| Mounting | Draw-out panel mount |
Quality Control Process (DYNAMIC GENERATION)
- Front-panel and HMI check. We verify the enhanced LCD, keypad, status LEDs, and motor/output indicators for full functionality.
- Control power-up test. The relay is energized at rated AC and DC levels to confirm stable boot, self-test pass, and no nuisance trips.
- CT and metering validation. With 1 A secondary injection, we verify phase current measurement, ground-fault sensing, and metering accuracy.
- Analog output verification. All four 4–20 mA outputs are checked for correct scaling, linearity, and retransmission response.
- RTD and communication test. RTD channels are tested with known resistance values, RS485/RS232 communication is verified, and the unit is anti-static bagged and foam-packed.
Replacement Pitfall Guide (DYNAMIC GENERATION)
❗ Confirm P1 vs P5 before swapping. The 469-P1-HI-A20-E is configured for 1 A phase CTs. Replacing it with a P5 (5 A) unit without updating CT wiring and settings will cause incorrect protection and false trips.
❗ Check analog output scaling. The A20 option provides four 4–20 mA outputs. If the DCS/PLC expects different measurement assignments, the replacement must be reconfigured before commissioning.
❗ Verify communication settings. New or replacement relays ship with default RS485/RS232 parameters. Existing Modbus addresses, baud rates, and EnerVista settings must be restored.
❗ Confirm conformal coating requirement. The “E” suffix indicates conformal coating for harsh environments. A non-coated replacement may not be suitable for the same installation conditions.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level | Migration Notes |
|---|---|---|---|
| GE Multilin 469-P1-HI-A20-E | GE Multilin 469-P1-HI-A20-E | Direct | Same order code; restore setpoints, analog scaling, and communication settings. |
| GE Multilin 469-P1-HI-A20-E | GE Multilin 469-P5-HI-A20-E | Needs Adaptation | CT secondary changes from 1 A to 5 A; wiring and CT ratio must be updated. |
| GE Multilin 469-P1-HI-A20-E | GE Multilin 859 | Needs Adaptation | Official successor; requires full setpoint migration, I/O review, and communication reconfiguration. |
| GE Multilin 469-P1-HI-A20-E | GE Multilin 869 | Needs Adaptation | Newer platform for larger motors; not a direct drop-in; full engineering review required. |
Benchmark highlights
- Draw-out construction for faster replacement and reduced downtime.
- Advanced thermal model with RTD-based stator and bearing temperature monitoring.
- Four isolated 4–20 mA analog outputs for direct DCS/PLC trending.
- Event records, waveform capture, and motor-health reporting for faster troubleshooting.
