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Phone: +86 16626708626Description
The GE 469-P1-HI-A20-E is an advanced industrial-grade motor management relay specifically engineered for medium and large motor protection and control. It provides comprehensive protection features, precise motor monitoring, and effective management capabilities critical to safeguarding costly motor assets and optimizing operational efficiency in industrial environments such as power generation, manufacturing, and heavy industry.
This relay integrates dual RS232/RS485 communication ports for flexible connectivity, enabling integration with SCADA and PLC systems using Modbus RTU or other communication protocols. It includes advanced stall protection based on motor torque measurements, supporting two overload curves (thermal models) to accommodate different motor characteristics and operational conditions. The relay supports nine optically isolated digital inputs and four 4-20mA analog outputs for detailed real-time monitoring and control.
- 469-P1-HI-A20-E-H
Technically, the GE 469-P1-HI-A20-E operates reliably in a wide power supply range of 90-300 V DC or 70-265 V AC at 48-62 Hz, while the operating temperature range spans from -40°C to +60°C. It features phase current inputs configurable for 1A or 5A CT ratings, differential current inputs for protection, and voltage inputs with accurate metering capabilities. The unit supports three-wire RTDs for temperature monitoring with alarm and trip thresholds to prevent overheating. A 40-character alphanumeric display provides clear status messages and diagnostic information, simplifying both commissioning and fault analysis.
| Parameter | Value |
|---|---|
| Model | GE 469-P1-HI-A20-E |
| Manufacturer | General Electric (GE Multilin) |
| Product Type | Motor Management Relay |
| Power Supply | 90-300 V DC / 70-265 V AC |
| Operating Temperature | -40°C to +60°C |
| Digital Inputs | 9 opto-isolated inputs |
| Analog Outputs | 4 x 4-20mA |
| Communication Ports | Dual RS232/RS485 |
| Phase Current Input | CT secondary 1A or 5A |
| Differential Current Input | 1A or 5A programmable |
| Voltage Inputs | VT secondary 273 V AC (full scale) |
| RTD Inputs | 3-wire RTD, 100/120/10 ohm types |
| Display | 40-character alphanumeric LCD |
| Weight | Approximately 7.7 kg |
| Dimensions | 8.8 in x 8.52 in x 9.93 in |
Key features include load averaging filters, reduced voltage starting supervision, variable frequency filtering for VFD applications, speed counter alarms, broken rotor bar detection, trip coil supervision, and extensive monitoring tools such as event recording and oscillography. The relay also provides pulsing KWh and KVAr outputs for energy measurement.
Related GE products often deployed alongside this relay include:
GE Multilin 369 Motor Protection Relay – Specialized motor management protective relay.
GE 750/760 Feeder Management Relays – For feeder and distribution system integration.
GE 670 Feeder Protection Relay – Complementary feeder protection solution.
GE Multilin 850 Series – Advanced substation automation products.
GE 8910 Power Supply Modules – Supporting reliable power delivery for control systems.
Installation guidelines emphasize secure panel mounting, adherence to wiring standards for CTs, VTs, RTDs, and communication cables, and ensuring environmental protections such as proper cooling and vibration isolation. Routine maintenance includes firmware updates, diagnostics via communication ports, and periodic inspection of connections and sensor inputs.
