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Low Ratio Wound Primary Current Transformer - Model 189

? Continuous Thermal Current Rating Factor:
1.33 at 30° C amb., 1.0 at 55° C amb.
? Frequency: 50 - 400 Hz.
? Insulation Level: 0.6 kV, BIL 10kV full wave.
? Approximate weight: 0.75 lbs.
? Secondary Terminals:
Brass studs No. 8-32 UNC with one flatwasher, lockwasher and regular nut.

Model Number: Model 189
Data Sheet:

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Product Specification

The Model 189 is a low ratio wound primary current transformer suitable for primary currents up to 100 amperes. The Model 189 table lists the most common current ratings. Primary terminals for the Model 189: for ratios of 30:5 and below are, No. 10-32 brass screws with one lockwasher (Dimension A=3.28), for ratios of 40:5 and above, 3/8-16 brass studs with one lockwasher and regular nut (Dimension A=4.10).

Model 189 Low Ratio Wound Primary Current Transformer Features
? Secondary Terminals:
Brass studs No. 8-32 UNC with one flatwasher, lockwasher and regular nut.

Model 189 Low Ratio Wound Primary Current Transformer Specifications
? Continuous Thermal Current Rating Factor:
1.33 at 30° C amb., 1.0 at 55° C amb.
? Frequency: 50 - 400 Hz.
? Insulation Level: 0.6 kV, BIL 10kV full wave.
? Approximate weight: 0.75 lbs.

Model 189 Low Ratio Wound Primary Current Transformer Part Number

Part Number	Current Ratio	ANSI Metering Class at 60 Hz
Part Number	Current Ratio	B0.1	B0.2
189-0025	2.5:5	0.6	0.6
189-005	5:5	0.6	0.6
189-0075	7.5:5	0.6	0.6
189-010	10:5	0.6	0.6
189-015	15:5	0.6	0.6
189-020	20:5	0.6	0.6
189-025	25:5	0.6	0.6
189-030	30:5	0.6	0.6
189-040	40:5	0.6	0.6
189-050	50:5	0.6	0.6
189-060	60:5	0.6	0.6
189-075	75:5	0.6	0.6
189-080	80:5	0.6	0.6
189-101	100:5	0.6	0.6