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
  
                
B78417A2185A003


Current Transformers EP7 T7078 Current Sense AEC-Q200
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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 2240
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USD 5.6831
Multiples of: 1

 7 mH  5 OhmsSmd/Smt11 mm10.6 mm9.7 mm 50 KHz to 250 KHzAec - Q200
BV 202 0154


Transformer: encapsulated; 0.5VA; 230VAC; 6V; 83mA; 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 2198
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USD 2.4505
Multiples of: 1

            
PA1005.100NL


Current Transformer 1:100 500Vrms 0.00075Ohm 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.

Pulse 2182
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USD 1.2978
Multiples of: 1

            
54100C


Current Transformers 14.8mH 1:1:100 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 2179
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USD 1.8506
Multiples of: 1

Smd/Smt14.8 mH15 A1:1:1003.2 OhmsSmd/Smt10.8 mm10 mm8.2 mm 50 KHz to 500 KHz 
PA1005.125QNLT


Current Transformers SMD Current Sense AEC-Q200 1:125 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 2157
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USD 1.2625
Multiples of: 1

  20 A   8.4 mm7.2 mm5.5 mm 50 KHz To 1 MHz 
PA0368.100NLT


Pulse Current Transformers XFMR CUR SENSE 100:1
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Pulse 2134
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USD 1.298
Multiples of: 1

Smd/Smt6.7 mH4 A1:1001.6 kOhmsSmd/Smt8.25 mm8.25 mm3.4 mm 50 KHz to 1 MHz 
AC1200


Current transformer; Series: AC; 200A; Trans:1000:1; 100O; 4000mVA
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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 2062
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USD 13.6749
Multiples of: 1

            
749252125


7A 1:125 Current Sense Transformer 1MHz 3mOhm Primary, 13Ohm Secondary 1.28mH Surface Mount
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Wurth 1938
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USD 4.7118
Multiples of: 1

 1.28 mH   Gull Wing    1 MHz 
749252060


7A 1:60 Current Sense Transformer 1MHz 3mOhm Primary, 3.6Ohm Secondary 295µH Surface Mount
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Wurth 1938
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USD 4.7118
Multiples of: 1

 295 uH   Gull Wing    1 MHz 
749252040


7A 1:40 Current Sense Transformer 1MHz 3mOhm Primary, 1.6Ohm Secondary 132µH 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.

Wurth 1936
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USD 4.7118
Multiples of: 1

 132 uH   Gull Wing    1 MHz 
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