The GE Multilin 489-P1-HI-A20-E is a Generator Protection Relay that is part of the SR489 Generator Management series. It is designed for small to medium-sized generators, providing comprehensive protection, control, and advanced communications capabilities. This model is particularly noted for its enhanced display and reliability, offering a low failure rate and greater longevity compared to its basic counterpart, the 489-P1-HI-A20. The "P1" in the part number indicates that this relay features 1A CT Secondaries for the Current Transformer Inputs, supporting a wide range of input voltages from 90-300VDC or 70-265VAC. It also offers 4-20 mA analog outputs and utilizes the GE Multilin EnerVista Software for integration and management purposes.GE 489 Series Discontinued.
Basic Info:
| 489-P1-HI-A20-E Technical Specifications | |
| Damped Oscillation Test Level | 2.5KV, 1.0 Mhz |
| Ground Overcurrent Curve Shapes | ANSI, IEC, IAC, Flexcurve, Definite Time |
| Mounting Method | Panel or 19" Rack Mount |
| Operating Temperature Range | -40 to 60°C |
| Production Tests Dielectric Strength | 1.9 kV AC for 1 second or 1.6 kV AC for one minute, per UL 508 |
| Shipping Weight | 7.7 kg or 17 lbs. |
| Tachometer Duty Cycle | > 10% |
| Trip Coil Supervision Trickle Current | 2 to 5 mA |
| Underfrequency Pickup Accuracy | ±0.02 Hz |
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