ETC2 CR8448-2000 High ratio wire lead transformer Datasheet

High Ratio Wire Lead Transformers
CR Magnetics CR8400 Series of Wire Lead Current Transformers are
available in a wide range of sizes and materials to meet any AC current
sensing needs. Our General Purpose designs are made from the
highest quality silicon steel cores available, and meet most of the common AC
current measurement needs. Our Revenue Grade CTs (-N) are made
from a nickel alloy core which provides the most linear response over
temperature and current level. A line of Ground Fault (-G) CTs for
measuring low AC currents including electrical shields. The High
Frequency (-F) products are designed for high frequency applications such
as high frequency power supplies and motor drives.
CR8400 SERIES
Applications
Motor Load Measurement
Power Meters
High Frequency Current Sensing
Ground Fault Sensing
Part Number
Ir
Vmax RMS
Te (typ.)
DCR Ω
Frequency
CR8401-1000
10
2.2
1009
49
20 - 1 KHz
CR8410-1000
20
3.1
1012
41
20 - 1 KHz
CR8420-1000
50
5.2
1018
22
20 - 1 KHz
CR8420-2000
75
9.0
1983
90
20 - 1 KHz
CR8448-1000
30
6.3
990
26
20 - 1 KHz
CR8448-2000
50
13.7
2046
106
20 - 1 KHz
CR8449-1000
50
11.6
1016
35
20 - 1 KHz
CR8449-2000
75
23
2046
150
20 - 1 KHz
CR8450-1000
100
16.5
1021
21
20 - 1 KHz
CR8450-2000
200
32
2037
73
20 - 1 KHz
Features
High Ratio
Standard Footprints
Specifications
Maximum Continuous Primary Current
4 X Ir
Insulation Voltage
3500 Vac/1min
Storage Temp.
-45°C thru +85 °C
Operating Temp. General Purpose & Nickel -40°C thru +85 °C
Operating Temp. High Frequency
-40°C thru +65 °C
Regulatory Agencies
REVENUE GRADE CURRENT TRANSFORMERS
Part Number
Ir
Vmax RMS
Te (typ.)
DCR Ω
Frequency
CR8448-2500-N
40
6.6
2510
134
20 - 1 KHz
CR8449-2500-N
50
10.0
2490
187
20 - 1 KHz
CR8450-2500-N
75
12.0
2512
160
20 - 1 KHz
CR8459-2000-N
200
11.5
2011
74
20 - 1 KHz
DCR
R
V
GROUND FAULT CURRENT TRANSFORMERS
Part Number
Ir
Vmax RMS
Te (typ.)
DCR Ω
Frequency
CR8401-1000-G
4
0.6
1005
49
20 - 1 KHz
CR8410-1000-G
7
0.8
1007
38
20 - 1 KHz
CR8420-1000-G
20
1.4
1011
44
20 - 1 KHz
VL = Vmax
-
I x DCR
Te
VL
Part Number
Ir
Vmax RMS
Te (typ.)
DCR Ω
Frequency
CR8448-2000-F
50
3.9
2015
90
20 - 200 KHz
CR8449-2000-F
75
7.4
2017
109
20 - 200 KHz
2020
63
20 - 200 KHz
Vmax = Maximum Voltage (Saturation) CT will develop
I
Te = Effective turns ratio including losses (All Specifications tested at 60 Hz)
B
PACKAGE DIMENSIONS AND OUTLINE (mm/in)
Part Number
Prefix
CR8401
CR8410
CR8420
CR8448
A
B
C
D
E
min
max
max
max
Typ
6.99
8.26
75.08
.275
17.53 22.35
.690
.880
.325
2.275
9.0
22
27.8
8.20
73
.35
.87
1.09
.323
2.87
15.0
30.0
36.0
9.2
100
.59
1.18
1.41
.36
3.94
7.11
.280
23.42 29.46 11.05
.922
1.16
.435
Part Number
Prefix
CR8449
CR8450
CR8459
F
For best linearity, choose R such that V < 0.8 VL
HIGH FREQUENCY CURRENT TRANSFORMERS
CR8450-2000-F
100
8.5
Ir = Maximum Input Current to be linearly sensed
IxR
Te
V=
A
B
C
D
E
min
max
max
max
Typ
9.14
26.0
31.8
17.0
100
.354
1.02
1.25
.67
3.94
13.08 36.83 43.18 13.97
D
A
C
88.9
.515
1.45
1.70
.55
19
48
60
17.5
200
.75
1.89
2.36
.67
7.88
3.50
100
3.94
E
CR Magnetics, Inc. 3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
91
Current Transformers
GENERAL PURPOSE CURRENT TRANSFORMERS
E-mail: [email protected]
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