GE SR489-CASE 489-P1-HI-A20-E Generator Management Relay

FAQ

Q1: What is the SR489-CASE 489-P1-HI-A20-E?
A: It is a GE Multilin 489 generator management and protection relay designed for small and medium-sized generators.

Q2: What does P1 mean?
A: P1 specifies 1 A phase CT secondary inputs.

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

Q4: What does A20 indicate?
A: A20 specifies four 4–20 mA analog outputs.

Q5: What does the E suffix indicate?
A: E indicates the enhanced display version, featuring a larger LCD and improved keypad.

Q6: How many RTD inputs does the 489 provide?
A: The 489 provides 12 RTD inputs for monitoring generator stator and bearing temperatures.

Q7: Is the GE Multilin 489 still manufactured?
A: No. GE Vernova identifies the 489 as a legacy product and states that manufacturing has been discontinued.

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

GE SR489-CASE 489-P1-HI-A20-E

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