GE SR489-P5-HI-A20-E Generator Management Relay

FAQ

Q1: What is the GE SR489-P5-HI-A20-E?
A: It is a GE Multilin 489 Generator Management Relay designed for generator protection, monitoring, and control.

Q2: What does P5 indicate?
A: P5 indicates 5 A phase CT secondary inputs.

Q3: What is the control power supply?
A: The HI configuration supports 90–300 V DC or 70–265 V AC at 48–62 Hz.

Q4: What analog outputs are provided?
A: The A20 configuration provides four 4–20 mA analog outputs.

Q5: What communication interfaces are available?
A: The SR489 provides one RS232 port and two RS485 ports.

Q6: What does the E suffix indicate?
A: The E configuration provides an enhanced display with a larger LCD and improved keypad.

Q7: Is the SR489-P5-HI-A20-E still manufactured?
A: GE identifies the Multilin 489 as a legacy product with manufacturing discontinued.

Q8: What are the dimensions and weight?
A: The specified dimensions are 252 × 216 × 224 mm, and the weight is 7.7 kg.

GE SR489-P5-HI-A20-E

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