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119
Current Transformers
F
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web:
http://www.crmagnetics.comE-mail:
sales@crmagnetics.comThe Professional
Energy Monitoring
Company
ISO 9001:2008QualityManagementSystem
M N TI
Wound Primary Current Transformer
Models 10WP & 189
The Model 10WP is a low ratio wound primary current transformer,
suitable for primary currents up to 40 amperes. The Model 10WP table lists
the most common current ratings. Primary terminals for the Model 10WP
are: for ratios of 25:5 and below, No. 8-32 brass studs with one
flatwasher, lockwasher and regular nut, for ratios of 30:5 and above,
1/4-20 brass studs with one flatwasher, lockwasher and regular nut.
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).
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.
Secondary Terminals
Brass studs No. 8-32 UNC with one flatwasher, lockwasher and regular nut.
Approximate weight
Model 10WP: 1.5 lbs.
Model 189: 0.75 lbs.
Regulatory Agencies
10WP-0025
2.5:5
0.6
0.6
10WP-005
5:5
0.6
0.6
10WP-0075
7.5:5
0.6
0.6
10WP-010
10:5
0.6
0.6
10WP-015
15:5
0.6
0.6
10WP-020
20:5
0.6
0.6
10WP-025
25:5
0.6
0.6
10WP-030
30:5
0.6
0.6
10WP-040
40:5
0.6
0.6
Part Number
Current Ratio
B0.1
B0.2
ANSI Metering Class at 60 Hz
Part Number
Current Ratio
B0.1
B0.2
ANSI Metering Class at 60 Hz
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
Model 10WP
Model 189
Model 189
Model 10WP