GE SR489-P1-HI-A20-E – Generator Management Relay

The GE SR489-P1-HI-A20-E is a high-performance Generator Management Relay designed to deliver comprehensive protection, control, and diagnostics for generators operating in industrial environments. With robust communication capabilities, fast response times, and enhanced monitoring, this relay ensures stable generator performance across a wide range of conditions.

Product Overview

• Manufacturer: GE (General Electric)

• Part Number: SR489-P1-HI-A20-E

• Product Type: Generator Management Relay

• Condition: In Stock

• Repair Lead Time: 3–7 Days

• Warranty: 1 Year

• Mounting Type: Panel-mounted

• Display Type: Enhanced LCD (E)

• Communication Interface: RS232

• Dimensions: 12.2 cm × 20.3 cm × 5.1 cm

• Weight: 1.2 kg

Technical Specifications

Power Supply

• Control Power (DC): 90–300 V

• Control Power (AC): 70–265 V

• Frequency Range: 48–62 Hz

Current and Voltage Inputs

• Phase Current Input: P1 = 1 A (CT secondary)

• Neutral/Output Current Range: 0.02 to 20 × CT

Analog I/O

• Analog Output: A20 = 4–20 mA

• Analog Input Supply: +24 V DC @ 100 mA max

Performance

• Relay Operating Time: 10 ms

• Energy Metering Update Rate: 50 ms

• Voltage Phase Reversal Accuracy: 200–400 ms

• Phase Differential Curve: Dual Slope

Environmental Ratings

• Operating Temperature: –25°C to +50°C

• Ingress Protection: Complies with IEC60529 standard

• IRIG-B (DC Shift): TTL compatible