About Current Transformers

Triad 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 6039
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AUD 3.028
Multiples of: 1

Through Hole 30 A1:50021 OhmsRadial0.85 in0.85 in0.71 in 50 Hz to 400 Hz 
CST-1030


Current Transformers CURRENT SENSE TRANSFORMER, PRIMARY CURRENT: 30 AMPS:
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Triad 4332
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AUD 8.7498
Multiples of: 1

Through_Hole-30 A1000:146 OhmsRadial30.2 mm14.3 mm30.2 mm 50 Hz / 60 Hz 
CST-1020


Current Transformers CURRENT SENSE TRANSFORMER, PRIMARY CURRENT: 20 AMPS
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Triad 2797
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AUD 6.9849
Multiples of: 1

Through_Hole    Radial23.5 mm12 mm24.8 mm   
CSE187L-P


Current Transformers 1:500ratio 110mV Potted Coil
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Triad 987
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AUD 4.5699
Multiples of: 1

Through Hole 30 A1:50021 OhmsRadial0.85 in0.85 in0.71 in 50 Hz to 400 Hz 
CST-1015


Current Transformers CURRENT SENSE TRANSFORMER, PRIMARY CURRENT: 15 AMPS
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Triad 938
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AUD 7.3904
Multiples of: 1

Through_Hole 15 A1000:140 OhmsRadial23.5 mm12 mm24.8 mm 50 Hz / 60 Hz 
CST-1005


Current Transformers CURRENT SENSE TRANSFORMER, PRIMARY CURRENT: 5AMPS
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Triad 880
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AUD 6.762
Multiples of: 1

Through_Hole 5 A1000:140 OhmsRadial23.5 mm12 mm24.8 mm 50 Hz / 60 Hz 
CSE5-100401


Current Transformers Sense/High Frequency 1140mohm DCR, 320uH
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Triad 727
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AUD 3.2708
Multiples of: 10

Smd/smt320 uH10 A1:401.14 OhmsSmd/smt7.7 mm6.9 mm5.33 mm 250 KHz + 
CST206-1A


Current Transformers CURRENT SENSE 14.0mH 100T ENCAP TORIOD/CST206-1A
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Triad 633
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AUD 7.0035
Multiples of: 1

Through_Hole14 mH110 A100:158 mOhmsRadial27.3 mm10.16 mm31.11 mm20 KHz to 250 KHz20 KHz to 250 KHz 
CST306-1A


Current Transformers CURRENT SENSE 3.5mH 50T ENCAP TORIOD/CST306-1A
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Triad 598
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AUD 5.796
Multiples of: 1

Through_Hole3.5 mH35 A50:1340 mOhmsRadial17.53 mm9.78 mm23.24 mm 20 KHz to 200 KHz 
CSE5-100301


Current Transformers TR=1:30, L=180 H MIN, SEC DCR=1 MAX
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Triad 2
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AUD 0.6489
Multiples of: 1

Smd/smt180 uH10 A1:30870 mOhmsSmd/smt7.7 mm6.9 mm5.33 mm 250 KHz + 
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