About Current Transformers

Current Transformers

A Current Transformer (CT) is a device designed to reduce an alternating current (AC) to a much lower, safer level. It is usually found in electric power systems for metering and/or protective relaying purposes. They are used to measure the level of current flowing through circuits and in most cases are connected to a meter or other monitoring device. The current transformer uses the concepts of electrical transformer to transform current levels between the primary (higher current) and secondary (lower current) windings. A typical current transformer is a wire wound toroidal core transformer, with a single primary winding, connected in series with the load, and a multiple secondary windings designed to provide an output current proportional to the current flowing through the primary.

Current Transformers

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Image  Information Image Stock Code(▲▼)Description
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(Ex. GST)(▲▼)		Enter Qty Mounting StyleInductanceCurrent RatingTurns RatioSecondary ResistanceTermination StyleLengthWidthHeightFrequencyFrequency RangeQualification
  
                
PCS020-EE05320S


Current Transformers Current Sense transformer, 20A, EE5, 320uH
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Bourns Availability : 870
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USD 3.1421

Multiples of: 1

SMD/SMT320 uH20 A1:401.14 OhmsSMD/SMT19.91 mm16.51 mm10.5 mm 1 MHz 
PCS020-EE05730S


Current Transformers Current Sense transformer, 20A, EE5, 730uH
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Bourns Availability : 864
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USD 3.1421

Multiples of: 1

SMD/SMT730 uH20 A1:601.98 OhmsSMD/SMT19.91 mm16.51 mm10.5 mm 1 MHz 
ZHT103


1000:1 5A 0.02kHz~10kHz Plugin Current Sense Transformers ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ZHT Availability : 860
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USD 0.2938

Multiples of: 1

  5 A       0.02 KHz ~ 10 KHz 
FIS155NL


Pulse Current Transformers CURRENT SENSE XFMR
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Pulse Availability : 853
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USD 2.5987

Multiples of: 1

Through Hole470 mH25 A1:50016 OhmsRadial15 mm12.5 mm12 mm500 KHz  
PB0027NL


Current Transformers SMD Current Sense 22400uH 2.9Ohms
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Pulse Availability : 851
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USD 2.1483

Multiples of: 1

Smd/Smt22.4 mH35 A200:12.9 OhmsSmd/Smt19.91 mm15 mm10 mm 50 KHz to 500 KHz 
PCS020-EE0503KS


Current Transformers Current Sense transformer, 20A, EE5, 3000uH
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Bourns Availability : 850
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USD 2.6334

Multiples of: 1

SMD/SMT3 mH20 A1:1257 OhmsSMD/SMT19.91 mm16.51 mm10.5 mm 1 MHz 
CST306-1A


Current Transformers CURRENT SENSE 3.5mH 50T ENCAP TORIOD/CST306-1A
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Triad Availability : 830
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USD 4.4352

Multiples of: 1

Through_Hole3.5 mH35 A50:1340 mOhmsRadial17.53 mm9.78 mm23.24 mm 20 KHz to 200 KHz 
BV EI 303 2012


Transformer: encapsulated; 2.3VA; 230VAC; 12V; 191mA; Mounting: PCB
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hahn Availability : 829
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USD 3.4007

Multiples of: 1

            
FC-SCT5.0-1:125-20A


1:125 20A SMD Current Sense Transformers ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

FANGCHENG Availability : 823
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USD 0.6097

Multiples of: 1

  20 A         
P8203NLT


Current Transformers SMD Current Sense 180uH .87Ohms
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Pulse Availability : 820
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USD 1.408

Multiples of: 1

  10 A   8.38 mm7.21 mm5.5 mm 50 KHz To 1 MHz 
BV EI 382 1186


Transformer: encapsulated; 4.5VA; 230VAC; 6V; 6V; 375mA; 375mA; 150g
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hahn Availability : 819
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USD 11.8188

Multiples of: 1

            
BV EI 382 1191


Transformer: encapsulated; 4.5VA; 230VAC; 12V; 375mA; Mounting: PCB
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hahn Availability : 812
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USD 4.7216

Multiples of: 1

            
FC-ULCT1013-1:100-35A


1:100 35A DIP-4 Current Sense Transformers ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

FANGCHENG Availability : 810
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USD 0.538

Multiples of: 1

  35 A         
B82801B0305A125


Current Transformers 3000uH N1:N2=1:125 T3623 EE5
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

TDK Availability : 801
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USD 1.6452

Multiples of: 1

 3 mH 1        
PA1005.100QNLT


Current Transformers SMD Current Sense AEC-Q200 1:100 Xfmr
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Pulse Availability : 790
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USD 1.188

Multiples of: 1

  20 A   8.4 mm7.2 mm5.5 mm 50 KHz To 1 MHz 
BV EI 422 1223


Transformer: encapsulated; 6VA; 230VAC; 9V; 9V; 334mA; 334mA; 200g
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hahn Availability : 771
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USD 7.8057

Multiples of: 1

            
FC-SCT1090-300T-50A


1:300 50A DIP Current Sense Transformers ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

FANGCHENG Availability : 758
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USD 0.915

Multiples of: 1

  50 A         
BV EI 306 3597


Transformer: encapsulated; 3.6VA; 230VAC; 7.5V; 480mA; 135g
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hahn Availability : 757
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USD 6.8943

Multiples of: 1

            
B82801B0925A200


20 A 1:200 Current Sense Transformer 50kHz ~ 1MHz 0.6mOhm Primary, 33.24Ohm Secondary 8 mH Surface Mount
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

TDK Availability : 756
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USD 1.4322

Multiples of: 1

            
B82801C1265A150


Current Transformers T4145 EF12.6 SMD TRANSFORMER
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

TDK Availability : 751
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USD 1.9519

Multiples of: 1

Smd/Smt12.6 mH40 A1:1502.2 OhmsSmd/Smt14.22 mm13.46 mm10 mm 50 KHz to 500 KHz 
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