Product Description
Product Overview
The General Electric 489-P1-HI-A20-E is a Generator Management Relay from the Multilin 489 Series, designed for the protection and management of small to medium-sized synchronous and induction generators. Manufactured by General Electric (now under GE Vernova’s Grid Solutions), this microprocessor-based relay offers comprehensive protection, monitoring, and metering functions. It is widely used in industrial applications such as power generation, oil & gas, and cogeneration, supporting generator operation at 25, 50, or 60 Hz.
Technical Specifications
The 489-P1-HI-A20-E has the following specifications based on standard characteristics for this model:
| Item | Specification |
|---|---|
| Model/Part Number | 489-P1-HI-A20-E |
| Manufacturer | General Electric (GE Multilin) |
| Description | Generator Management Relay |
| Series | Multilin 489 |
| Phase Current Inputs | 1 A phase CT secondaries (P1) |
| Control Power | 90-300 V DC / 70-265 V AC, 48-62 Hz (HI) |
| Analog Outputs | 4-20 mA (A20) |
| Display | Enhanced display with larger LCD (E) |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Weight | Approximately 7.7 kg (17 lbs) with case |
Additional Details
The 489-P1-HI-A20-E includes the following additional information based on its standard use and documentation:
| Category | Details |
|---|---|
| Function | Protects and manages generators with advanced monitoring |
| Mounting | Draw-out design in SR489-CASE |
| Connectivity | RS232 front port, two RS485 rear ports |
| Features | 40-character LCD, 12 RTD inputs, 6 output relays, 4 VT inputs, enhanced diagnostics |
| Certifications | Designed to support SIL 3 per IEC 61508 (system-dependent) |