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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(Ex. GST)(▲▼)		Enter Qty Mounting StyleInductanceCurrent RatingTurns RatioSecondary ResistanceTermination StyleLengthWidthHeightFrequencyFrequency RangeQualification
  
                
ZEMCT131


Current Transformers DIP-4 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.

Zeming Langxi Availability : 2699
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USD 0.4899
Multiples of: 1

            
PA0368.050NLT


Current Transformers SMD Current Sense 1700uH .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 : 2681
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USD 1.2956
Multiples of: 1

Smd/Smt1.7 mH4 A1:50900 mOhmsSmd/Smt8.25 mm8.25 mm3.4 mm 50 KHz to 1 MHz 
B82801B205A100


Current Transformer 1:100 500VAC 0.0008Ohm Prim. DCR 5.5Ohm Sec. DCR 20000mA 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 : 2678
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USD 1.7325
Multiples of: 1

Smd/Smt2000 uH20 A1:1005500 mOhmsSmd/Smt8.13 mm7.11 mm5.08 mm 50 KHz to 1 MHz 
ZMCT102


Current Transformers Through Hole 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.

Zeming Langxi Availability : 2583
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USD 0.3891
Multiples of: 1

  -       - 
53200C


Current Transformers 8.00mH 1:200 turns SM Curr Sense Txfr
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Murata Availability : 2574
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USD 0.8754
Multiples of: 1

Smd/Smt8 mH10 A1:20034 OhmsSmd/Smt8.3 mm7.2 mm5.4 mm 50 KHz to 500 KHz 
PM2165.125NLT


Current Transformers 3mH 1000V AEC-Q200 20A DCR=0.75mOhms
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Pulse Availability : 2543
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USD 0.9306
Multiples of: 1

            
BV EI 481 1327


Transformer: encapsulated; 10VA; 230VAC; 12V; 12V; 417mA; 417mA
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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 : 2387
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USD 8.1684
Multiples of: 1

            
PA1005.040QNLT


Current Transformers SMD Current Sense AEC-Q200 1:40 Xfmr
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Pulse Availability : 2294
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USD 1.0683
Multiples of: 1

  20 A   8.4 mm7.2 mm5.5 mm 50 KHz To 1 MHz 
749251050


Current Transformers WE-CST 500uH 10A 1:5 DCR=1.4Ohms
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Wurth Availability : 2294
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USD 4.5675
Multiples of: 1

 500 uH 1  7.7 mm6.9 mm5.33 mm   
BV EI 305 2879


Transformer: encapsulated; 2.3VA; 230VAC; 9V; 255mA; Mounting: PCB
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Hahn Availability : 2259
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USD 3.1829
Multiples of: 1

            
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