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SR489-P5-L0-A20-E GE Model Parts Generator Management Relay
The GE SR489-P5-L0-A20-E is a GE Multilin 489 Generator Management Relay designed to provide comprehensive protection, monitoring, and control for synchronous and induction generators.
The relay integrates electrical protection, generator monitoring, thermal protection, alarm management, and configurable control functions. It helps protect generator equipment against abnormal operating conditions while improving power-system reliability and operational safety.
The SR489 configuration identifies the relay supplied in its compatible case. This model features 5 A phase current transformer inputs, a low-range AC/DC control power supply, four 4-20 mA analog outputs, and an enhanced front panel display.
| Parameter | Specification |
|---|---|
| Manufacturer | General Electric (GE Multilin) |
| Model Number | SR489-P5-L0-A20-E |
| Product Series | Multilin 489 |
| Product Type | Generator Management Relay |
| Current Input Option | P5 – 5 A phase CT secondaries |
| Control Power Option | L0 / LO – Low-range power supply |
| DC Control Power | 24–60 VDC |
| AC Control Power | 20–48 VAC |
| AC Frequency | 48–62 Hz |
| Analog Output Option | A20 – 4-20 mA outputs |
| Display Option | E – Enhanced display |
| Display Type | Larger LCD with improved keypad |
| Communication | RS232 and RS485 serial interfaces |
| Ethernet | Not included in the E option |
| Mounting | Panel mounting with compatible SR489 case |
| Main Application | Generator protection and management |
| Code | Description |
|---|---|
| SR489 | GE Multilin 489 relay supplied in its compatible case |
| P5 | 5 A phase current transformer secondary inputs |
| LO | Low-range control power: 24–60 VDC or 20–48 VAC |
| A20 | Four 4-20 mA analog outputs |
| E | Enhanced display with larger LCD and improved keypad |
It is a GE Multilin 489 Generator Management Relay designed for generator protection, monitoring, and control.
P5 indicates 5 A phase current transformer secondary inputs.
LO identifies the low-range control power option, supporting 24–60 VDC or 20–48 VAC.
A20 indicates four 4-20 mA analog outputs.
E indicates an enhanced front panel with a larger LCD and improved keypad.
GE generator management relay
,SR489-P5-L0-A20-E relay module
,GE module parts with warranty
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