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SR489-P1-HI-A20-E-H GE Module Parts Multilin 489 Generator Management Relay
The GE SR489-P1-HI-A20-E-H is a microprocessor-based generator protection and management relay from the GE Multilin 489 series. It is engineered to protect, monitor, and manage synchronous and induction generators in industrial and power-generation applications.
This configuration combines 1 A phase current-transformer inputs, a high-range AC/DC control power supply, 4-20 mA analog outputs, an enhanced LCD display, and conformal coating for harsh chemical environments.
| Code | Description |
|---|---|
| SR489 | GE Multilin 489 Generator Management Relay |
| P1 | 1 A phase CT secondary inputs |
| HI | High-range control power supply |
| A20 | 4-20 mA analog outputs |
| E | Enhanced display with larger LCD and improved keypad |
| H | Conformal coating for harsh chemical environments |
| Parameter | Specification |
|---|---|
| Manufacturer | General Electric (GE) |
| Product Brand | GE Multilin |
| Model | SR489-P1-HI-A20-E-H |
| Product Series | Multilin 489 |
| Product Type | Generator Management and Protection Relay |
| Phase CT Input | 1 A secondary |
| Control Power – DC | 90–300 V DC |
| Control Power – AC | 70–265 V AC |
| AC Frequency | 48–62 Hz |
| Analog Outputs | 4-20 mA |
| Digital Inputs | 9 optically isolated inputs |
| RTD Monitoring | Supports generator temperature monitoring |
| Communication | RS232 / RS485 |
| Communication Protocols | Modbus RTU |
| Display | Enhanced LCD and improved keypad |
| Environmental Protection | Harsh-environment conformal coating |
| Mounting | Drawout relay |
| Operating Temperature | -40 to +60°C |
| Approximate Weight | 7.7 kg |
It is a GE Multilin 489 Generator Management Relay designed for generator protection, monitoring, metering, and control.
P1 specifies 1 A phase current-transformer secondary inputs.
HI specifies a high-range auxiliary power supply: 90–300 V DC or 70–265 V AC at 48–62 Hz.
A20 specifies four programmable 4-20 mA analog outputs.
GE 489 Generator Management Relay
,SR489-P1-HI-A20-E-H GE Module
,Multilin 489 Relay Module Parts
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