Operating Voltage Range:36 Vpk (isolated with RTDs and analog inputs)
Case Design:Fully drawout (automatic CT shorts)
Analog Inputs Accuracy:+/-1% of full scale
Fuse Model:215-02.5
Ingress Protection:IP40 Front, IP10 back
Maximum Altitude:2000 m
Overvoltage Category:II
RTD Inputs Isolation:36 Vpk (isolated with analog inputs and outputs)
Sinusoidal Vibration Test Level:Class 1
Underfrequency Curve Shapes:1 level alarm, two level trip definite time
Voltage Phase Reversal Configuration:ACB or ABC
Phase Distance Characteristics:Offset mho RTD inputs sensing current 5 mA
Sequential Trip Configurable:Assignable to digital inputs 1 to 7
Shipping Weight:7.7 kg or 17 lbs.
The GE 489-P1-HI-A20-E Relay is a sophisticated component designed to manage and protect synchronized and induction generators with unparalleled precision.
Equipped with advanced features such as damped oscillation test, level 2.5KV ground overcurrent curve shapes, and an operating temperature range of -40°C to 60°C, it ensures optimal performance under diverse environmental conditions.
Its compatibility with ANSI, IEC, IAC, and flexcurve standards makes it a versatile choice for a wide array of industrial applications, enhancing system reliability and safety.
With its comprehensive set of specifications, including a dielectric strength tested at 1.9kV AC for 1 second or 1.6kV AC for one minute, per UL 508, this relay offers robust insulation and protection against voltage surges.
The relay’s inclusion of trip coil supervision, trickle current, and underfrequency pickup accuracy at ±0.02 Hz ensures quick and accurate response times, crucial for maintaining operational integrity in critical systems.












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