Description

The GE Multilin 239 is a motor protection relay providing accurate phase and ground current monitoring, advanced overload protection, and configurable trip curves.

Current Inputs

• Phase Current: True RMS, 16 samples per cycle

• CT Input: 1 A and 5 A secondary

• Measurement Range: 0.1 to 11 × phase CT primary

• Frequency Range: 20–300 Hz

• Accuracy: ±2% of full scale

• Ground Current: True RMS, 16 samples per cycle

• CT Input: 5 A secondary and 50:0.025 CT

• Measurement Range:

• 5 A CT: 0.03–1.4 × CT primary

• 50:0.025 CT: 0.05–16.0 A

• Accuracy:

• 0–0.49 A: ±0.03 A

• 0.50–3.99 A: ±0.07 A

• 4.00–16.00 A: ±0.20 A

• 5 A CT: ±2% of full scale

Overload Trip Characteristics

• Trip Curves: 15 fixed-shape curves

• Overload Pickup Inhibit: Adjustable 1.00–5.00 × Full Load Current (FLC)

• Pickup Level Range: 1–1500 A

• Accuracy:

• Pickup: ±1% of displayed value

• Trip Time: ±2% of trip time or ±1 second, whichever is greater