About Current Transformers

Wurth 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
  
                
7492540500


Current Transformers WE-CST 135mH 1:500 40A EE13/7/4 SMT
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Wurth 1096
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USD 2.9131
Multiples of: 1

SMD/SMT135 mH40 A1:50021.2 mOhmsSMD/SMT14.48 mm13.3 mm10.5 mm 1 MHz 
7492540020


Current Transformers WE-CST 0.224mH 1:20 40A EE13/7/4 SMT
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Wurth 1091
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USD 3.2281
Multiples of: 1

SMD/SMT           
7492540050


Current Transformers WE-CST 1.4mH 1:50 40A EE13/7/4 SMT
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Wurth 1080
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USD 2.9131
Multiples of: 1

SMD/SMT           
7492540100


Current Transformers WE-CST 5.6mH 1:100 40A EE13/7/4 SMT
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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 1010
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USD 2.9131
Multiples of: 1

SMD/SMT5.6 mH40 A1:1000.805 OhmsSMD/SMT14.48 mm13.3 mm10.5 mm 1 MHz 
7492541000


Current Transformers WE-CST 540mH 1:1000 40A EE13/7/4 SMT
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Wurth 1009
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USD 2.9131
Multiples of: 1

SMD/SMT540 mH40 A1:100087.64 OhmsSMD/SMT14.48 mm13.3 mm10.5 mm 1 MHz 
7492540200


Current Transformers WE-CST 22.4mH 1:200 40A EE13/7/4 SMT
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Wurth 943
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USD 2.9131
Multiples of: 1

SMD/SMT22.4 mH40 A1:2002.63 OhmsSMD/SMT14.48 mm13.3 mm10.5 mm 1 MHz 
749251020


Current Transformers WE-CST 80uH 20A 1:2 DCR=.75mOhms
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Wurth 681
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USD 1.7388
Multiples of: 1

 80 uH 1        
749251070


Current Transformers WE-CST 980uH 20A 1:7 DCR=.75mOhms
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Wurth 411
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USD 1.7267
Multiples of: 1

 980 uH 1        
750316796


Current Transformers MID-SNS CS Transform SMD 1:200 22400uH
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Wurth 90
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USD 2.6078
Multiples of: 1

 22.4 mH40 A200:12.63 OhmsSmd/Smt20.2 mm14.48 mm10.5 mm 50 KHz to 500 KHz 
749251100


Current Transformers WE-CST 2mH 10A 1:1 DCR=5.5Ohms
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Wurth 0
6 to 16 Weeks Calender.png

USD 1.7267
Multiples of: 1

 2 mH 1  7.7 mm6.9 mm5.33 mm   
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