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
  
                
CSE187L


Current Transformers 1:500ratio 110mV LOW FREQ SENSE
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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 : 3403
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USD 1.9031
Multiples of: 1

Through Hole 30 A1:50021 OhmsRadial0.85 in0.85 in0.71 in 50 Hz to 400 Hz 
B82801B724A60


Current Transformers 720uH N1:N2=1:60 T3621 EE5 SMD
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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 : 1505
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USD 1.807
Multiples of: 1

Smd/Smt720 uH20 A1:601980 mOhmsSmd/Smt8.13 mm7.11 mm5.08 mm 50 KHz to 1 MHz 
PH9505.100NLT


Current Transformers C.Sense Xfrm 30Arms 3.0kVdc 1:100T
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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 : 1504
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USD 1.9293
Multiples of: 1

            
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 : 1487
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USD 1.6125
Multiples of: 10

  10 A   8.38 mm7.21 mm5.5 mm 50 KHz To 1 MHz 
BV302S09015ZU


Transformer: encapsulated; 1.5VA; 230VAC; 9V; 167mA; 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.

Zettler Availability : 1455
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USD 1.7335
Multiples of: 1

            
749251100


Current Transformers WE-CST 2mH 10A 1:1 DCR=5.5Ohms
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Wurth Availability : 1443
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USD 1.7267
Multiples of: 1

 2 mH 1  7.7 mm6.9 mm5.33 mm   
56050C


Current Transformers 50 turns 10A 5-9.3mH @1V 50kHz
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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 Availability : 1408
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USD 1.449
Multiples of: 1

Through Hole4.5 mH10 A50199 mOhmsRadial16.79 mm8.89 mm20.19 mm20 KHz to 200 KHz20 KHz to 200 KHz 
BV EI 306 2071


Transformer: encapsulated; 3.2VA; 230VAC; 9V; 356mA; 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 : 1333
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USD 3.781
Multiples of: 1

            
AC1060


Current transformer; Series: AC; 60A; Trans:1000:1; 100O; 360mVA
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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 Availability : 1325
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USD 6.1404
Multiples of: 1

            
PA0368.125NLT


Current Transformers SMD Current Sense 10.4mH 1.9Ohms
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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 : 1321
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USD 1.3
Multiples of: 1

  4 A   8.25 mm8.25 mm3.4 mm 50 KHz To 1 MHz 
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