About 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.

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    AC1050


    		Current transformer; Series: AC; 50A; Trans:1000:1; 100O; 250mVA
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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 24295
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    USD 5.3214
    Multiples of: 1

    		            
    AC1005


    		Current transformer; Series: AC; 5A; Trans:1000:1; 100O; 2.5mVA
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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 22499
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    USD 3.6616
    Multiples of: 1

    		            
    AC1020


    		Current transformer; Series: AC; 20A; Trans:1000:1; 100O; 40mVA
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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 20517
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    USD 3.6616
    Multiples of: 1

    		            
    P8208NLT


    		Pulse Current Transformers SMT CUR SENSE 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 20079
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    USD 1.3005
    Multiples of: 900

    		Smd/Smt2 mH10 A1:1005.5 kOhmsSmd/Smt8.38 mm7.21 mm5.5 mm 50 KHz to 1 MHz 
    Hot FIS115NL


    		Current Transformers THT Current Sense 18000uH 2Ohms
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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 19846
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    USD 0.982
    Multiples of: 30

    		  25 A   15 mm12.5 mm12 mm500 KHz500 KHz 
    AC1010


    		Current transformer; Series: AC; 10A; Trans:1000:1; 100O; 10mVA
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    		Talema 14679
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    USD 3.6616
    Multiples of: 1

    		            
    AX-0500


    		Current transformer; Series: AX; 5A; Trans:500:1; 100O; -40÷120°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 9732
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    USD 3.2623
    Multiples of: 1

    		            
    2276612


    		Current Transformers PACT-FAST-MNT-W13- L40
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    		Phoenix Contact 9700
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    USD 7.007
    Multiples of: 1

    		       13 mm    
    2276638


    		Current Transformers PACT-FAST-MNT-W16- L40
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    		Phoenix Contact 9700
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    USD 7.7077
    Multiples of: 1

    		            
    2276641


    		Current Transformers PACT-FAST MNT-W16-L65
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    		Phoenix Contact 9700
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    USD 7.7077
    Multiples of: 1

    		            
    1 2345...