Current transformers

Do you need help making a decision?  Take a look at our buying guide
127 companies | 629 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...
{{#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
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 ...

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 ...

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 ...

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. ...

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 ...

See the other products
FRER
current transformer
current transformer
TDA110

Frequency: 47 Hz - 450 Hz

Split Core Toroidal Transformer Ø110 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 ...

See the other products
FRER
current transformer
current transformer
TDA160

Frequency: 47 Hz - 450 Hz

Split Core Toroidal Transformer Ø160 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 ...

See the other products
FRER
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 ...

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 ...

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 ...

See the other products
CIRCUTOR
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 ...

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 ...

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 ...

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 ...

See the other products
FANOX ELECTRONIC
current transformer
current transformer
192 series

Primary voltage: 24, 230 V
Secondary voltage: 0 V - 10 V
Primary current: 5 A - 5,000 A

SOCOMEC current transformers provide a standard current to the secondary proportional to the primary current, which is adapted to the related device's rating. Standard ...

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 ...

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 ...

current transformer
current transformer
TAB1

TAB1- closed current transformers /5A TAB1: Closed version current transformer for low voltage systems Advantages of purchasing: Secondary with double faston ...

current transformer
current transformer
TAB2

TAB2 - closed current transformers /5A TAB2: Closed version current transformer for low voltage systems Advantages of purchasing: Secondary with double faston ...

current transformer
current transformer
TAB3

TAB3 - closed current transformers /5A TAB3: Closed version current transformer for low voltage systems Advantages of purchasing: Secondary with double faston ...

current transformer
current transformer
AT series

Output power kVA: 0.0015 kVA - 0.03 kVA
Primary current: 75 A - 4,000 A
Secondary current: 5 A

... between the secondary current and the primary current is close to zero. What are the Benefits of LV Current Transformer? Thanks to LV current ...

current transformer
current transformer
OAT series

Output power kVA: 0.00125, 0.005 kVA
Primary current: 40, 100 A
Secondary current: 1, 5 A

Current transformers are elements that transmit the current in the circuit to which they are connected to the secondary in certain proportions and isolate the measuring instruments from ...

current transformer
current transformer
US-CTV

Primary voltage: 600 V
Secondary voltage: 333 mV
Primary current: 5 A - 600 A

... Split Core Current Transformer (Folder snap) Primary current: 5-600A Secondary voltage: 333mV US-CTV of split core style current transformers are ...

See the other products
ADTEK Electronics Co., Ltd
current transformer
current transformer
US-CT5(1)A

Primary voltage: 720 V
Primary current: 100 A - 1,000 A
Secondary current: 1, 5 A

... Split Type Current Transformer (Folder Snap) Primary current: 100-1000A Secondary current: 1A/5A US-CT5(1)A split core style current transformers ...

See the other products
ADTEK Electronics Co., Ltd
current transformer
current transformer
US-CTS

Secondary voltage: 333 mV
Primary current: 100 A - 5,000 A
Secondary current: 5 A

US-CTS Split Core Current Transformer Primary current: 100-4000A Secondary current: 5A, 333mV Class available: 0.5, 1.0 and 3.0 US-CTS offers a complete range ...

See the other products
ADTEK Electronics Co., Ltd
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 ...

current transformer
current transformer
LZZW-10

Output power kVA: 0.01 kVA
Primary voltage: 10 kV
Primary current: 5 A - 1,000 A

This outdoor current transformer is an epoxy resin full enclosed pillar product. It is used for electric energy metering, current metering and relay protection. This CT meets the standard ...

rectifier transformer
rectifier transformer
ZSG-7.5k

Output power kVA: 7.5 kVA
Primary voltage: 380, 360, 400 V
Secondary voltage: 56 V

... Overview: Three-phase Dry-type Transformer (for Photovoltaic): Applied in the photovoltaic field, it adapts the electrical energy generated by photovoltaic panels, optimizes voltage and current, and ...

See the other products
LUSHAN CHINA
current transformer
current transformer
DF-3kVA 380V-220V

Output power kVA: 3 kVA
Primary voltage: 380 V
Secondary voltage: 220 V

See the other products
LUSHAN CHINA
current transformer
current transformer
TDB-300VA 380V-220V

Electric power: 300 W
Output power kVA: 300 W
Primary voltage: 380 V

300VA Single-Phase Transformer for Photovoltaic Applications (VPI-Processed, Compact Design) Optimized for solar energy systems, this 300VA single-phase transformer ensures reliable power ...

See the other products
LUSHAN CHINA
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 • ...

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 • ...

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 ...

See the other products
Dowei Electric
current transformer
current transformer
TIB

Output power kVA: 0, 0.01 kVA
Primary current: 10, 15, 25, 5 A
Frequency: 50, 60 Hz

... Protection transformers The C.T. when used as a current generator for protection relays has electrical characteristics which differ from those of the measuring transformer. In fact, ...

current transformer
current transformer
TI1

Output power kVA: 0.01 kVA
Primary current: 5, 60 A
Frequency: 50 Hz - 60 Hz

Intensity transformer for clinical applications Compact and simple to install

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 ...

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 ...

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 ...

See the other products
ZELEC
current transformer
current transformer
QI-300-I

Primary voltage: 11 V
Secondary voltage: 30 V
Primary current: 300 A

... transducer is loop-powered with current 4-20 mA so needs no direct power supply. It is the first loop-powered Hall effect transformer with 0.5% accuracy on the market. RMS AC/DC loop-powered ...

See the other products
qeed
current transformer
current transformer
AMPER-O

Primary current: 0 A - 50 A
Frequency: 20 Hz - 2,000 Hz

AC/DC current transformer (TRMS) to 4/20mA current loop, with isolation, high precision. 0…25 …50 A In alternating current it measures the true effective value (TRMS). ...

instrument transformer
instrument transformer

1. Current switches. These units are used to give a signal, if the AC current exceeds a preselected setpoint. The setpoint is adjusted on a potentiometer on the transformer. 2. ...

current transformer
current transformer
WALO ALO series

Output power kVA: 0.005 kVA
Primary voltage: 3 kV
Secondary voltage: 720, 333 V

Article features 1. - This Winding current transformer is mostly used for new installations, as the circuit must be interrupted here. 2. - Most cost-effective and most common variant. 3. - Currently the ...

See the other products
Celsa Messgeräte GmbH
current transformer
current transformer
ASTR21

Primary current: 50 A - 500 A
Secondary current: 1, 5 A
Frequency: 50 Hz - 60 Hz

... frequencies on request) • class of insulation E (other classes on request) • rated short-time thermal current Ith = 60 . IN • nominal surge current Idyn = 2.5 . Ith. • highest voltage for equipment ...

See the other products
CELSA MESSGERATE ESPAÑA S.L.
current transformer
current transformer
ASTMR21

Primary current: 50 A - 500 A
Secondary current: 1, 5 A
Frequency: 50 Hz - 60 Hz

... frequencies on request) • class of insulation E (other classes on request) • rated short-time thermal current Ith = 60 . IN • nominal surge current Idyn = 2.5 . Ith. • highest voltage for equipment ...

See the other products
CELSA MESSGERATE ESPAÑA S.L.
current transformer
current transformer
AST210s

Primary current: 50 A - 300 A
Secondary current: 5 A
Frequency: 50 Hz - 60 Hz

... frequencies on request) • class of insulation E (other classes on request) • rated short-time thermal current Ith = 60 . IN • nominal surge current Idyn = 2.5 . Ith. • highest voltage for equipment ...

See the other products
CELSA MESSGERATE ESPAÑA S.L.
current transformer
current transformer
DRCA 1 CT 070

Primary current: 200 A

Function: Transformers are components for detecting residual currents in connection with evaluation units such as DRCM, DMRCD or MFR. Transformers in combination with evaluation units ...

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