GE SR489-CASE SR489-P1-LO-A20 Generator Management Relay

FAQ

Q1: What is the GE SR489-P1-LO-A20?
A: It is a GE Multilin 489 Generator Management Relay designed for generator protection, monitoring, metering, and control.

Q2: What does P1 indicate?
A: P1 indicates 1 A phase CT secondary inputs.

Q3: What is the control power supply?
A: The LO configuration supports 20–60 V DC or 20–48 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, with support for industrial communication protocols such as Modbus RTU.

Q6: What monitoring functions does the relay provide?
A: It provides generator metering, 12 RTD inputs for temperature monitoring, and four analog transducer inputs.

Q7: Is the SR489-P1-LO-A20 still manufactured?
A: The GE Multilin 489 is a legacy product and manufacturing has been 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-CASE SR489-P1-LO-A20

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