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
  
                
53200C


Current Transformers 8.00mH 1:200 turns SM Curr Sense Txfr
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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.

Murata 2591
Ships to you
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USD 1.0328
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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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 2543
Ships to you
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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 2387
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USD 8.1684
Multiples of: 1

            
44230


Transformer: encapsulated; 5VA; 230VAC; 9V; 556mA; 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.

Myrra 2333
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USD 4.0982
Multiples of: 1

            
HCT226JY-2


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.

Hop Tech 2327
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USD 0.6849
Multiples of: 1

  5 A       0.02kHz ~ 10kHz 
PA1005.040QNLT


Current Transformers SMD Current Sense AEC-Q200 1:40 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 2294
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between Wed. 29 May to Fri. 31 May Calender.png

USD 1.1023
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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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.

Wurth 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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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 2259
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between Thu. 23 May to Wed. 29 May Calender.png

USD 3.1829
Multiples of: 1

            
PM2165.100NLT


Current Transformers 2mH 1000V AEC-Q200 20A DCR=0.75mOhms
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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 2249
Ships to you
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USD 0.7163
Multiples of: 1

            
AZ-0750


Current transformer; Series: AZ; 40A; Trans:750:1; 33O; -40÷85°C
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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.

Talema 2241
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USD 5.8305
Multiples of: 1

            
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