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Current Transformers (CT)

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BWA-CURRENT-TRANSFORMER-150A
Banner Engineering
150A wire mounting,free hanging,Through hole mounting
Quantity: 2
Ship Date: 7-12 working days
1+ $36.72
- +
x $36.72
Ext. Price: $36.72
MOQ: 1
Mult: 1
SPQ: 1
101990061
Seeed Studio
1800:1 20A wire mounting,base mount 13mm(length)*13mm(width)
Quantity: 22
Ship Date: 6-13 working days
1+ $7.935
- +
x $7.935
Ext. Price: $7.93
MOQ: 1
Mult: 1
SPQ: 1
HO 150-NP-0100
LEM
375:1 -375A~375A 375:1 PCBinstall,board mount 41.56mm(width)*27.43mm(height)
Quantity: 72
Ship Date: 3-12 working days
1+ $14.8751
10+ $14.6096
25+ $14.6096
50+ $14.3439
100+ $14.3439
500+ $14.3439
1000+ $14.3439
- +
x $14.8751
Ext. Price: $14.87
MOQ: 1
Mult: 1
AS-103
Amgis Toroids
1:300 250mH 20KHz~200KHz 900Vμs 10Ω Plugins Through hole mounting 17.2mm*9.53mm*20.4mm
Quantity: 132
Ship Date: 7-12 working days
1+ $4.0068
10+ $3.6169
25+ $3.3438
50+ $3.2417
100+ $3.1417
250+ $3.0137
500+ $2.9198
1000+ $2.8284
- +
x $4.0068
Ext. Price: $4.00
MOQ: 1
Mult: 1
SPQ: 1
AT 50 B5
LEM
CURRENT SENSOR XFMR 50A
Quantity: 51
Ship Date: 7-12 working days
1+ $89.2216
5+ $82.7362
10+ $80.3213
25+ $77.4297
80+ $74.2014
- +
x $89.2216
Ext. Price: $89.22
MOQ: 1
Mult: 1
SPQ: 1
90.P2.19.000.0
LEM
LEM Current Transformers, LXSRseries, 25A, turns_ratio 25:1
Quantity: 8
Ship Date: 7-13 working days
1+ $18.0415
- +
x $18.0415
Ext. Price: $36.08
MOQ: 2
Mult: 1
02303
Simpson Electric
1:120 center mounting 90.4mm(length)*90.4mm(height)
Quantity: 8
Ship Date: 6-13 working days
1+ $65.241
- +
x $65.241
Ext. Price: $65.24
MOQ: 1
Mult: 1
SPQ: 1
CTV2X100A333MV
Carlo Gavazzi
Current Transformers, CTVseries, Separate core type
Quantity: 18
Ship Date: 7-9 working days
3+ $41.8865
- +
x $41.8865
Ext. Price: $125.65
MOQ: 3
Mult: 1
SPQ: 1
CTG210
Carlo Gavazzi
Current Transformers, CTGseries, turns_ratio 1000:1,
Quantity: 3
Ship Date: 7-9 working days
1+ $401.8139
- +
x $401.8139
Ext. Price: $401.81
MOQ: 1
Mult: 1
SPQ: 1
ECSTA1V0504-1125-R
EATON
125:1 7A 1.28mH 50KHz~1MHz SMD mount 4.8mm*3.65mm*3.55mm
Quantity: 1985
Ship Date: 6-13 working days
1+ $7.958
10+ $7.073
250+ $6.531
500+ $6.3735
1000+ $6.2895
2000+ $4.116
- +
x $7.958
Ext. Price: $7.95
MOQ: 1
Mult: 1
SPQ: 1
XN45-335051S000000
Sifam Tinsley
Sifam Tinsley Current Transformers, Omegaseries, 600A, 5 Aoutput, turns_ratio 600:5, Base mounted type, Used forMCCB
Quantity: 1
Ship Date: 5-10 working days
1+ $33.4839
- +
x $33.4839
Ext. Price: $33.48
MOQ: 1
Mult: 1
2277776
PHOENIX CONTACT
Phoenix,PACTMCR-V1-21-44-200-5A-1,Current Transformers,200A 50Hz~60Hz DINRail installation 44mm*30mm*66mm
Quantity: 3
Ship Date: 7-12 working days
1+ $51.9588
- +
x $51.9588
Ext. Price: $51.95
MOQ: 1
Mult: 1
SPQ: 1
DHR 400 C420
LEM
LEM Current Transformers, DHRseries, 400A, 4 → 20 mA output, turns_ratio 400:1
Quantity: 31
Ship Date: 7-13 working days
1+ $290.8161
5+ $265.8242
10+ $259.1787
- +
x $290.8161
Ext. Price: $290.81
MOQ: 1
Mult: 1
ACS772ECB-300B-PFF-T
Allegro MicroSystems
Open Loop Current Sensor AC/DC Current 5V Automotive 5-Pin Case CB-PFF Tube
Quantity: 163
Ship Date: 9-13 working days
23+
25+ $4.677
50+ $4.4754
100+ $4.3948
300+ $4.3545
500+ $4.3141
1000+ $4.1932
5000+ $4.1932
- +
x $4.677
Ext. Price: $121.60
MOQ: 26
Mult: 1
SPQ: 1
AX-1500
talema
15A 50Hz~60Hz 1500:1 Plugins Through hole mounting 17.2mm*9.53mm*20.4mm
Quantity: 1480
Ship Date: 14-18 working days
5+ $5.7013
25+ $4.5191
100+ $3.722
200+ $3.4955
- +
x $5.7013
Ext. Price: $57.01
MOQ: 10
Mult: 5
SPQ: 5
AC1010
talema
10A 50Hz,60Hz 41.8Ω 1000:1 Through hole mounting 23.8mm*11.12mm*23.8mm
Quantity: 636
Ship Date: 6-12 working days
50+ $4.3335
250+ $4.0756
- +
x $4.3335
Ext. Price: $481.01
MOQ: 111
Mult: 1
SPQ: 1
CT02-150
ice components
1150 18A 4mH 12Vμs SMD mount 6.4mm(length)*4.6mm(height)
Quantity: 799
Ship Date: 6-13 working days
1+ $3.6455
10+ $2.849
25+ $2.42
50+ $2.3004
100+ $2.2356
250+ $2.1384
500+ $2.106
1000+ $1.9005
- +
x $3.6455
Ext. Price: $3.64
MOQ: 1
Mult: 1
SPQ: 1
CT06-100
ice components
1100 18A 1.4mH 54Vμs SMD mount 6.7mm(length)*5mm(height)
Quantity: 470
Ship Date: 7-12 working days
1+ $3.3264
10+ $3.0132
25+ $2.7855
50+ $2.7007
100+ $2.6179
250+ $2.5115
500+ $2.4335
- +
x $3.3264
Ext. Price: $3.32
MOQ: 1
Mult: 1
SPQ: 1
53050C
Murata Manufacturing
1:50 500μH 50KHz~500KHz SMD mount 7.2mm*8.3mm*5.4mm
Quantity: 1863
Ship Date: 6-13 working days
1+ $1.61
25+ $1.419
50+ $1.254
100+ $1.1448
250+ $1.0346
500+ $0.9612
1000+ $0.8953
- +
x $1.61
Ext. Price: $1.61
MOQ: 1
Mult: 1
SPQ: 1
TLI4971A025T5E0001XUMA1
Infineon Technologies
Infineon Current sensor chip, surface mount, 8Pin
Quantity: 829
Ship Date: 3-12 working days
1+ $3.522
10+ $3.522
25+ $3.1557
50+ $3.1557
100+ $3.0994
250+ $3.043
500+ $3.043
1000+ $3.043
- +
x $3.522
Ext. Price: $10.56
MOQ: 3
Mult: 1
KTS1670EDA-TR
Kinetic Technologies
Quantity: 8094
Ship Date: 6-13 working days
1+ $0.759
10+ $0.5394
25+ $0.4842
100+ $0.4048
250+ $0.3608
1000+ $0.3402
3000+ $0.311
9000+ $0.294
18000+ $0.2898
- +
x $0.759
Ext. Price: $1.51
MOQ: 2
Mult: 1
SPQ: 1
T60404N4644X052
VACUUMSCHMELZE
500A DC~50KHz Plugins base mount 56mm(length)*56mm(height)
Quantity: 54
Ship Date: 7-12 working days
1+ $77.8128
9+ $70.2254
18+ $68.2304
27+ $67.1412
54+ $65.4004
108+ $63.8026
- +
x $77.8128
Ext. Price: $77.81
MOQ: 1
Mult: 1
SPQ: 1
CT-0100-D10
Littelfuse
100A 100:5 wire mounting,free hanging,Through hole mounting
Quantity: 3
Ship Date: 7-12 working days
1+ $80.4128
10+ $72.2706
25+ $69.2428
50+ $67.0301
100+ $64.8832
- +
x $80.4128
Ext. Price: $80.41
MOQ: 1
Mult: 1
SPQ: 1
F01P050S05L
TAMURA
Closed Loop Current Sensor AC/DC Current 5V 9-Pin
Quantity: 1297
Ship Date: 7-12 working days
1+ $15.7896
5+ $13.8258
10+ $13.313
25+ $12.7001
50+ $12.2805
400+ $11.2197
800+ $10.9226
- +
x $15.7896
Ext. Price: $15.78
MOQ: 1
Mult: 1
SPQ: 1

Current Transformers (CT)

Current Transformers (CTs) are devices used in electrical power systems to convert high alternating current (AC) to a lower, safer level for measurement and protection purposes. They are essential components in power distribution and control systems.

Definition:
A current transformer is an instrument transformer designed to provide a current that is proportional to the current in a primary circuit. It typically consists of a toroidal core with a primary winding and a secondary winding. The primary winding is connected in series with the load, while the secondary winding is connected to the measuring or protective devices.

Function:
1. Measurement: CTs allow for the accurate measurement of current in high-voltage circuits without the need for high-voltage-rated meters or protection relays.
2. Protection: They are used in conjunction with relays to provide overcurrent, short-circuit, and earth-fault protection in power systems.
3. Control: CTs enable the control of power flow in circuits by providing feedback to control systems.

Applications:
1. Power Distribution: In substations and distribution boards to monitor and control the flow of electricity.
2. Metering: For billing purposes in utility companies to measure the amount of electricity consumed by customers.
3. Protection Systems: To detect faults and initiate circuit breakers to prevent damage to the electrical infrastructure.

Selection Criteria:
1. Rated Current: The CT should be rated for the maximum current expected in the primary circuit.
2. Accuracy Class: Depending on the application, CTs are classified by their accuracy (e.g., 0.5, 0.2, 0.1 class).
3. Turns Ratio: The ratio of primary to secondary turns determines the current transformation ratio.
4. Insulation Level: Must be suitable for the voltage level of the primary circuit.
5. Environmental Conditions: CTs must be rated for the environmental conditions they will be exposed to, such as temperature, humidity, and pollution levels.
6. Size and Physical Characteristics: The physical size and shape of the CT must be compatible with the installation location and the equipment it is connected to.

In summary, current transformers are vital for the safe and efficient operation of electrical systems, providing a means to measure, control, and protect against electrical faults in high-current applications. Their selection should be based on the specific requirements of the system they will be used in.
Please refer to the product rule book for details.