Current transformers

Do you need help making a decision?  Take a look at our buying guide
125 companies | 588 products
exhibit your products

& reach your clients in one place, all year round

Exhibit with us
Search
Current transformers | Choosing the Right Transformer
There are 5 main types of transformers. The differences between each transformer are related to the types of applications possible. Current transformers: these are transformers in which the secondary current is proportional to the primary current. They can be used with all low-frequency alternating currents. Power transformers: these are distribution transformers with a voltage of one phase higher than 1,000V. They are used to transport electricity over long...
{{#pushedProductsPlacement4.length}} {{#each pushedProductsPlacement4}}
{{product.productLabel}}

{{product.productLabel}} {{product.model}}

{{#if product.featureValues}}
{{#each product.featureValues}} {{content}} {{/each}}
{{/if}}
{{#if product.productPrice }} {{#if product.productPrice.price }}

{{product.productPrice.formattedPrice}} {{#if product.productPrice.priceType === "PRICE_RANGE" }} - {{product.productPrice.formattedPriceMax}} {{/if}}
{{/if}} {{/if}}
{{#if product.activeRequestButton}}
{{/if}}
{{product.productLabel}}
{{product.model}}

{{#each product.specData:i}} {{name}}: {{value}} {{#i!=(product.specData.length-1)}}
{{/end}} {{/each}}

{{{product.idpText}}}

{{productPushLabel}}
{{#if product.newProduct}}
{{/if}} {{#if product.hasVideo}}
{{/if}} {{#each product.productTagAssociationList}}
{{/each}}
{{/each}} {{/pushedProductsPlacement4.length}}
{{#pushedProductsPlacement5.length}} {{#each pushedProductsPlacement5}}
{{product.productLabel}}

{{product.productLabel}} {{product.model}}

{{#if product.featureValues}}
{{#each product.featureValues}} {{content}} {{/each}}
{{/if}}
{{#if product.productPrice }} {{#if product.productPrice.price }}

{{product.productPrice.formattedPrice}} {{#if product.productPrice.priceType === "PRICE_RANGE" }} - {{product.productPrice.formattedPriceMax}} {{/if}}
{{/if}} {{/if}}
{{#if product.activeRequestButton}}
{{/if}}
{{product.productLabel}}
{{product.model}}

{{#each product.specData:i}} {{name}}: {{value}} {{#i!=(product.specData.length-1)}}
{{/end}} {{/each}}

{{{product.idpText}}}

{{productPushLabel}}
{{#if product.newProduct}}
{{/if}} {{#if product.hasVideo}}
{{/if}} {{#each product.productTagAssociationList}}
{{/each}}
{{/each}} {{/pushedProductsPlacement5.length}}
current transformer
current transformer
LINETRAXX® CTUB103

Primary current: 10, 5, 25 A

... The AC/DC sensitive measuring current transformers of the CTUB103 series convert system leakage and fault currents into an evaluable measurement signal. The devices are suitable for detecting fault currents ...

See the other products
BENDER GmbH & Co KG
current transformer
current transformer

Frequency: 50, 60 Hz

... measuring current transformers (1 A or 5 A). It should be ensured that the measuring device and the measuring current transformers used at least comply with accuracy class 0.5 S or higher. ...

See the other products
BENDER GmbH & Co KG
current transformer
current transformer
LINETRAXX® CTAC series

Frequency: 15 kHz - 100 kHz

... Features Measuring current transformers CTAC… For RCMS460/490 residual current monitoring systems For RCM420 residual current monitors For EDS440 and EDS460/490 insulation fault ...

See the other products
BENDER GmbH & Co KG
current transformer
current transformer
PGC-2000 series

Primary current: 200 A

... has the capacity of detecting phase or ground fault currents. The unit is precise in converting little differential currents to an AC voltage, and output the signal to a linked POWR-GARD ground fault ...

See the other products
Littelfuse
current transformer
current transformer
PGC-5000 series

Primary current: 30 A

... designed to optimize performance, while minimal differential currents are converted to AC voltage by the unit. This voltage is relayed to the POWR-GARD ground-fault system connected to the transformer. ...

See the other products
Littelfuse
current transformer
current transformer
T1

Secondary voltage: 24 V
Primary current: 40 A - 6,000 A

... of digital and analogue power and energy metres, our full range of low-voltage current transformers are available in split-core, solid-core, and Rogowski coils. Monitor cables and busbars with wide-ranging ...

current transformer
current transformer

... optimal for our products as we take pride in being the first company in the world to commercialize ferrite. We develop transformers for AC/DC converters that maximize this feature. They are also compatible with flyback types as well ...

current transformer
current transformer
1411 series

Primary voltage: 600 V

... Our Bulletin 1411 Current Transformers (CTs) are low voltage transformers for various power measurement devices and applications, including protective relays, analog devices, transducers, ...

oil-insulated transformer
oil-insulated transformer
OSKF

Primary voltage: 72.5 kV - 800 kV
Primary current: 6,000 A

... Oil-Insulated Current Transformers (CT) up to 800 kV GE’s OSKF have been designed for a 30 year lifetime and, thanks to the profound technical concepts, many well out-live this service life. The oil is hermetically ...

See the other products
GE Grid Solutions
current transformer
current transformer
IMB

Primary voltage: 36 kV - 800 kV
Primary current: 4,000 A

... customer-tailored solutions IMB oil-minimum current transformers are based on a tank type (hairpin) design and available with porcelain or silicone rubber insulators. Hitachi Energy current transformers ...

current transformer
current transformer

Output power kVA: 3.001 kVA - 50 kVA
Primary voltage: 50 mV
Secondary voltage: 230 kV

... The medium power transformer are designed according to the criteria established by NBR 5356 standard or complying with the requirements of the power utility companies and/or specific needs of each application. These ...

See the other products
WEG Gear Systems GmbH
instrument transformer
instrument transformer
CT

... Split-Core Current Transformers Split-Core Current Transformers (CTs) are designed for applications where it is difficult or uneconomical to open the primary conductor to install a solid-core-type ...

instrument transformer
instrument transformer

... Since 1984, the current transformers from CG operate with high quality performance in 60 countries. These transformers comply with international quality standards to ensure efficient productivity. These ...

See the other products
CG Power Systems
power transformer
power transformer

Output power kVA: 20,000 kVA - 40,000 kVA
Primary voltage: 15 V - 20 V
Secondary voltage: 15 kV - 20 kV

... Frequency injection transformer in mineral oil, installed in the HVB/HVA source station outside: enables the injection of remote control signals. Main characteristics • Oil filled transformer for exterior installation. • ...

instrument transformer
instrument transformer
IOSK

... The head type IOSK oil paper insulated current transformers follows the current IEC and IEEE/ANSI standards. It is outstanding in controlling insulation stress using fine graded bushing. The advantages ...

See the other products
Trench Group
earth-leakage transformer
earth-leakage transformer
TDC028

Frequency: 47 Hz - 450 Hz

... Toroidal Transformer Ø28 for Type A-F Earth Leakage Relays Toroidal Transformer Ø28 with integrated secondary cables, for Type A-F Earth Leakage Relays • thermoplastic material UL 94 • operating frequency 25...10kHz ...

See the other products
FRER
current transformer
current transformer
TDC032

Frequency: 47 Hz - 450 Hz

... Toroidal Transformer Ø24 32x10 for Type A-F Earth Leakage Relays • thermoplastic material UL 94 • operating frequency 25...10kHz -3dB • power-frequency withstanding voltage 3kV 50Hz, 1 min. • installation category CAT. III 600V ...

See the other products
FRER
current transformer
current transformer
TDA060

Frequency: 47 Hz - 450 Hz

... Split Core Toroidal Transformer Ø60 for Type A-F Earth Leakage Relays • thermoplastic material UL 94 • nominal frequency 47...450Hz • operating frequency 25...10kHz -3dB • power-frequency withstanding voltage 3kV 50Hz, 1 min. • ...

See the other products
FRER
current transformer
current transformer
38000 Series

Primary current: 5 A - 20 A
Secondary current: 50 mA - 660 mA
Frequency: 50 kHz - 500 kHz

... Pico current sense transformers are designed for load management for power circuit protection. They provide the safest step-up current monitoring by allowing measurement of the current ...

current transformer
current transformer
MCT 085

... High-frequency current transformer for medium-voltage power cables The MCT 085 high-frequency current transformer (HFCT) is specifically designed for offline or online ...

current transformer
current transformer
TRMC series

Output power kVA: 0, 0.01 kVA
Primary current: 100 A - 3,000 A
Secondary current: 5 A

... Degree) - Tropicalization - Impossibility of tampering with the transformer, preventing any form of access to the internal elements. Applications Current transformers for energy meters. Used ...

See the other products
CIRCUTOR
current transformer
current transformer
SC3 series

Primary current: 125 A

... Description Efficient current transformers that have been specially designed to be installed on top of a switch. The most important feature of these split-core transformers is that they are very easy ...

See the other products
CIRCUTOR
instrument transformer
instrument transformer
TRM series

... Resin-coated current transformer, busbar. Other characteristics: Inner diameter from 30 to 180 mm, according to type Applications These transformers have been conceived to convert nominal currents ...

See the other products
CIRCUTOR
current transformer
current transformer
CT series

... Measurement Transformers for Low Voltage. CT-1 and CTD-1 Toroidal transformers are specially designed to be used with ELR-B, ELR-3C, D30 and DM30 relays. The relay ensures the assembly sensitivity of the transformer. ...

See the other products
FANOX ELECTRONIC
current transformer
current transformer
CT 20 30 50 70 90

Primary current: 3,200 A

... Protection & Measurement for Low Voltage - Up to 3200 A of primary current. - Transformers ratio …/5. - Terminal cover, metal brackets for fitting, bus-bar holders and DIN rail mounting accesories included. - Standards: ...

See the other products
FANOX ELECTRONIC
current transformer
current transformer
CT 80II - CT4II

Primary current: 0 A - 1,800 A

... CT 80II, a much smaller and lighter current transformer, developed by Fanox, reaches up to 1800 A of primary current and has a transformers ratio of 1200/5. The product includes a sealable ...

See the other products
FANOX ELECTRONIC
current transformer
current transformer
IVY-CT-05-100ADC-500mT

Primary current: 5 A - 100 A
Secondary current: 2 mA - 40 mA
Frequency: 50 Hz - 60 Hz

... 500mT is a DC-immune metering current transformer designed to protect electronic energy meters from external magnetic tampering. It combines an amorphous alloy and nanocrystalline core, metal shielding ...

See the other products
IVY METERING
current transformer
current transformer
VY-CT-OC-36-20

Primary voltage: 3 kV
Primary current: 500 A
Frequency: 50, 60 Hz

... The split core current transformer (CT) uses high-quality ferrite as the magnetic conductive material, which has the characteristics of opening and closing, small magnetic circuit loss, ...

See the other products
IVY METERING
current transformer
current transformer
IVY-CT-PCB-01-10A

Primary voltage: 4,000 V
Primary current: 40, 50, 60 A
Frequency: 50, 60 Hz

... 1. Current Transformer is also called instrument transformer, including current transformer and voltage transformer. 2. It is used to proportionally ...

See the other products
IVY METERING
current transformer
current transformer
TPS-AIT1500300D

Output power kVA: 1,500 W
Primary voltage: 230 V
Secondary voltage: 0 V - 300 V

... input current of 6A, delivering reliable power conversion for diverse applications . This transformer features an adjustable output voltage range of 0-300VAC, classifying it as a 0-300VAC Output Adjustable ...

current transformer
current transformer
MSC-TCOF

... Product Description: - Current transformer for primary current up to 36A. Cable opening Ø9.5mm. Wire output length 630 mm. Ideal for sub-metering. Electrical Characteristics: - Current ...

See the other products
Lettel
current transformer
current transformer
MSC-TCO series

Primary current: 5 A - 600 A

... The MSC-TCO closed current transformers combine precision with ease of integration: - **Electrical:** Measure current up to 600A, with an accuracy of 0.5%. - **Physical:** 4 housing sizes according ...

See the other products
Lettel
current transformer
current transformer
MSC-TCF series

Primary current: 30 A - 600 A

... The MSC-TCF closed current transformers combine accuracy with ease of integration: - Electrical: current measurement up to 600A, with an accuracy of 0.1%. - Physical: 4 housing sizes depending on the ...

See the other products
Lettel
current transformer
current transformer
CTM-25

Primary voltage: 9 V - 36 V
Primary current: 0 A - 250 A

... Type Automatic Transfer Switch (ATS). BTB Type ATS All-In-One Current Transformer (CT) & Communication Interface Module. An optional add-on module to provides BTB controller with load current readings ...

current transformer
current transformer
LZMK-10

Primary voltage: 10 kV
Secondary voltage: 0.2 V - 10 V
Primary current: 5 A - 2,000 A

... Product Details
The LZMK-10 current transformer maintains accuracy stability between -5~40C through thermally optimized casting structure. Unique magnetic shunt design ensures composite ...

See the other products
Ximai Electric (Wuhan) Co.,Ltd
current transformer
current transformer
LZW32-12

Output power kVA: 3.75 W - 15 W
Primary voltage: 10 kV
Primary current: 50 A - 1,000 A

... Product Details
This inverted current transformer is designed for 10kV outdoor applications, featuring composite insulation materials for all-weather protection. The unique inverted design lowers the ...

See the other products
Ximai Electric (Wuhan) Co.,Ltd
current transformer
current transformer
LAJ-10

Primary voltage: 10 kV
Primary current: 5 A - 6,000 A
Secondary current: 1, 5 A

... strong>Product Details
This current transformer features stepped structure design, with semi-enclosed insulation below 300A and single-turn/bus-type fully enclosed structure above 400A for high- current ...

See the other products
Ximai Electric (Wuhan) Co.,Ltd
current transformer
current transformer
HSSPZ

Output power kVA: 1,500 kVA - 200,000 kVA
Primary voltage: 35 kV - 66 kV
Secondary voltage: 13.2 kV

... • IEC 60076, ANSI/IEEE Std C57.12, NEMA • ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA • Mineral Oil / Vegetable Oil (FR3), Free PCB • Cooling Type: ONAN / ONAF / OFAF / OFWF • Gas factories, Steel plants, Calcium carbide industrie • Seismic design, ETGI-1.020, ...

See the other products
Dowei Electric
current transformer
current transformer
DKS

Primary voltage: 6 kV - 36 kV
Secondary voltage: 0.4 kV

... AWS D1.1 • High altitude correction per IEC 60076 & IEEE C57.12, ~ 5000m • Earthing transformer creates a neutral point for a network • Limit the line to earth current under system earth fault condition • Z connection ...

See the other products
Dowei Electric
current transformer
current transformer
LB6-36

Primary voltage: 36 kV
Secondary voltage: 110 V - 220 V

... • IEC 61869, ANSI/IEEE C57.13, NEMA • ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA • Seismic design, ETGI-1.020, IEEE Std 693, NCh2369 • Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1 • High altitude correction per IEC 61869 & IEEE C57, ~ 5000m • ...

See the other products
Dowei Electric
current transformer
current transformer
TAC005005X05

Primary voltage: 720 V
Primary current: 5 A
Secondary current: 5, 1 A

... primary wound CT A current transformer is used to reduce the primary current to a standardised value (1 or 5 A) in order to adapt to the current inputs of multifunction meters, energy ...

See the other products
ZELEC
current transformer
current transformer
TAC005010X05

Primary voltage: 720 V
Primary current: 10 A
Secondary current: 1, 5 A

... primary wound CT A current transformer is used to reduce the primary current to a standardised value (1 or 5 A) in order to adapt to the current inputs of multifunction meters, energy ...

See the other products
ZELEC
current transformer
current transformer
TAC005015X05

Primary voltage: 720 V
Primary current: 15 A
Secondary current: 5, 1 A

... primary wound CT A current transformer is used to reduce the primary current to a standardised value (1 or 5 A) in order to adapt to the current inputs of multifunction meters, energy ...

See the other products
ZELEC
instrument transformer
instrument transformer
TCA

Primary current: 100 A - 5,000 A

... equipment, 0,72 kV. - Isolation voltage, 3 kV. - Working frequency, 50• 60 Hz. - Short circuit thermal current, Ith=20 In. - Dynamic current, Idyn=2,5 Ith. ...

See the other products
Contrel elettronica
instrument transformer
instrument transformer
TCB

Primary current: 1 A - 4,000 A

... those of the measuring transformer. Infact the measuring C.T. is expected to give a saturation of the magnetic circuit with 5P in primary currents while, in the case of protective C.T., it is necessary ...

See the other products
Contrel elettronica
distribution transformer
distribution transformer
TCB-A

Primary current: 500 A - 6,000 A

... The TCB-A is a series of current transformers that are specially made for applications that involve power centers and distribution boards for plant expansion or maintenance. The primary bar does not ...

See the other products
Contrel elettronica
exhibit your products

& reach your clients in one place, all year round

Exhibit with us
DirectIndustry RFQ: Free quotation comparison tool
Receive and compare quotations for free
Describe your project
We select
the best suppliers
Compare quotations and complete your purchase