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AI Overview
Top suppliers for zero phase current transformers (ZCT) include manufacturers like FLEX-CORE, KEMET, and Taehwatrans, offering specialized sensors for ground-fault protection, earth leakage detection, and high-sensitivity monitoring. These products are used in industrial, commercial, and utility applications, with key distributors including Mouser, Raptor Supplies, and Eaton distributors. 
Top Zero Phase Current Transformer Providers 
  • FLEX-CORE (Flex-Core.com): Specializes in in-stock and custom zero sequence current transformers for, industrial applications, with common ratios like 50:5A and 100:5A available. 
  • Taehwatrans (Taehwatrans.com): Manufactures specialized zero-phase current transformers (ZCT) designed for differential/ground fault protection. 
  • KEMET Electronics: Offers compact, molded-type zero-phase current transformers often sold through authorized distributors like Mouser. 
  • DeyoTech (Deyotech.com): Provides professional, high-quality zero phase current transformers and solid-core options. 
  • Eaton (Cutler Hammer): Known for reliable zero sequence transformers used with relays (e.g., C311CT series), available through suppliers like Raptor Supplies and Electrical Equipment Company. 
  • Littelfuse (Symcom): Manufactures the ELCT30-31 Zero Phase Current Transformer, which is a 1.24-inch sensor designed for panel mounting. 
  • A-Plus Power Solution: Provides a wide range of zero-phase current transformers (ZCT) designed for high sensitivity and ground-fault protection. 
Common Procurement Options 
  • Raptor Supplies: Stocks Eaton zero sequence transformers.
  • Mouser Electronics: Stocks KEMET ZCT components.
  • Standard Electric Supply Co.: Carries Symcom/Littelfuse models. 
Key Considerations 
  • Application: Used heavily for ground-fault detection in industrial, commercial, and medical systems.
  • Dimensions: Available in various window sizes to accommodate different conductor diameters (e.g., 1.1 in to 1.8 in).
  • Technical Specs: Look for 500:1 ratios and specialized, high-permeability cores for increased sensitivity. 
  • Professional Zero Phase Current Transformer Providers
    Professional Zero Phase Current Transformer in China. The highest industry standards are met in the design and production of our P...
    deyotech.com
  • FLEX-CORE - Zero Sequence Current Transformers
    FLEX-CORE® maintains a large in-stock inventory of Zero Sequence Current Transformers for most common applications. Below is a lis...
    FLEX-CORE
  • ZCT Zero-Phase Current Transformers - KEMET | Mouser
    Dec 12, 2025 — KEMET ZCT Zero-Phase Current Transformers are compact molded-type, zero-phase current transformers. These modules are designed to ...
    Mouser Electronics
  • FLEX-CORE® Current Transformers
    Why Choose FLEX-CORE® FLEX-CORE® manufactures and warehouses a large selection of Transformers, Transducers, Meters and more for m...
    FLEX-CORE
  • Zero-Phase Current Transformers (ZCT) for Ground-Fault ...
    @APSC Corporation. A-Plus Power Solution is a manufacturer and distributor of transformers with good standing in the market.
    A Plus Power Solution Corporation
  • Zero Phase CT - Differential / Ground Fault Current Transformer
    Zero Phase CT - Differential / Ground Fault Current Transformer | Taehwatrans.
    Taehwatrans
  • Go to product viewer dialog for this item.
    Eaton Cutler Hammer Transformer
    Current Transformer General:brand:EATON,General:MPN:C311CT28,General:Item Name:Current Transformer
    Google
  • Go to product viewer dialog for this item.
    Eaton C311CT1 Zero Sequence Current Transformer
    External Current Transformers, 500:1 Ratio, 1.8 Inch Diameter Window, 600 Vac
    Google
  • Go to product viewer dialog for this item.
    Symcom ELCT30-31 Zero Phase Current Transformer
    Littelfuse ELCT30-31 is a sensor with a 1.24 in (31.6mm) window size. It has a CT Ratio of 600:1, making it suitable for current m...
    Google
  • Professional Zero Phase Current Transformer Providers
    Professional Zero Phase Current Transformer in China. The highest industry standards are met in the design and production of our P...
    deyotech.com
  • FLEX-CORE - Zero Sequence Current Transformers
    FLEX-CORE® maintains a large in-stock inventory of Zero Sequence Current Transformers for most common applications. Below is a lis...
    FLEX-CORE
  • ZCT Zero-Phase Current Transformers - KEMET | Mouser
    Dec 12, 2025 — KEMET ZCT Zero-Phase Current Transformers are compact molded-type, zero-phase current transformers. These modules are designed to ...
    Mouser Electronics
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Web results

KEMET ZCT Zero-Phase Current Transformers


Mouser Electronics
https://www.mouser.com › new › kemet-electronics › k...
Mouser Electronics
https://www.mouser.com › new › kemet-electronics › k...
KEMET ZCT Zero-Phase Current Transformers are zero-phase current transformers designed to improve the sensitivity, and weight of electric shock.
$4.99 delivery · 30-day returns
Missing: suppliers ‎| Show results with: suppliers

Zero Sequence Current Transformers - FLEX-CORE®


FLEX-CORE
https://www.flex-core.com › zero-sequence-current-tran...
FLEX-CORE
https://www.flex-core.com › zero-sequence-current-tran...
To check pricing and availability for a specific zero sequence current transformer model, give us a call at (614) 889-6152 or use our quote request form. You ...Read more
Missing: suppliers ‎| Show results with: suppliers

Professional Zero Phase Current Transformer Providers


deyotech.com
https://deyotech.com › product-category › zero-phase-cu...
deyotech.com
https://deyotech.com › product-category › zero-phase-cu...
We started as as zero phase current transformer manufacturers and we known as professional zero phase current transformer providers at good rates in China.
Missing: suppliers ‎| Show results with: suppliers

Zero Phase CT - Differential / Ground Fault Current ...


Taehwatrans
https://www.taehwatrans.com › Zero-Phase_CT › Zero-...
Taehwatrans
https://www.taehwatrans.com › Zero-Phase_CT › Zero-...
The zero phase CTs are differential sensors passing both line & grounded neutral conductors into the CT aperture so as to make a zero phase sequence.Read more

Zero-Phase Current Transformers (ZCT) for Ground-Fault ...


A Plus Power Solution Corporation
https://www.apluspowersolution.com › products
A Plus Power Solution Corporation
https://www.apluspowersolution.com › products
A-Plus Power Solution is a manufacturer and distributor of transformers with good standing in the market. With the benefit of years of experience and advanced ...Read more

Zero Sequence CT


Asct Current Transformer
https://asctinc.com › zero-phase-current-transformer
Asct Current Transformer
https://asctinc.com › zero-phase-current-transformer
Yueqing Heyi Electrical Co., Ltd. was a flexible manufacturer of current transformers and current sensors. We produce Siemens Schneider lem current ensor ...

Zero Phase Current Transformer ZCT526 Manufacturer


ctzentar.com
https://www.ctzentar.com › zero-phase-current-transfor...
ctzentar.com
https://www.ctzentar.com › zero-phase-current-transfor...
Xiamen ZTC Technology focus on zero phase sequence since 1993,offer Zero phase current transformer ZCT526,zero phase sequence wholesale.Factory price.
Missing: suppliers ‎| Show results with: suppliers

The Zero Sequence Current Transformer ZDLX Series Low ...


Amazon.com
https://www.amazon.com › CAARLA-Sequence-Transf...
Amazon.com
https://www.amazon.com › CAARLA-Sequence-Transf...
Manufacturer. CAARLA ; High overload capacity · the current transformer has a strong overload capacity, can withstand short-term overcurrent without damage.Read more

Zero Sequence CT


polycast.ca
https://polycast.ca › Products › current-transformers
polycast.ca
https://polycast.ca › Products › current-transformers
Polycast is a trusted manufacturer of zero sequence current transformers (Core Balance CTs), offering both standard and custom designs for indoor and outdoor ...Read more
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    Mitsubishi Electric ZT 60A Zero-Phase Current Transformer 240/480V 60Amp
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  • Dwyer | Current Monitoring CCT40-203 - Current transformer, 10/20/50 A input, 0-10 V output, solid core..
    Dwyer | Current Monitoring CCT40-203 - Current transformer, 10/20/50 A input, 0-10 V output, solid core.
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  • Eaton Cutler Hammer Transformer.
    Eaton Cutler Hammer Transformer
    $671.28
    raptorsupplies.com     & more
    Free delivery
  • 44% OFF
    Symcom ELCT30-88 Zero Phase Current Transformer. 44% OFF.
    Symcom ELCT30-88 Zero Phase Current Transformer
    $707.25$1,282
    Standard Electric Supply Co.     & more
  • MITSUBISHI ZERO PHASE CURRENT TRANSFORMER ZT40B 50kA.
    MITSUBISHI ZERO PHASE CURRENT TRANSFORMER ZT40B 50kA
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Web results

Zero Phase Current Transformer(999+)


Alibaba.com
https://www.alibaba.com › ... › Transformers
Alibaba.com
https://www.alibaba.com › ... › Transformers
Shop high-quality zero phase current transformers for accurate measurements. Perfect for multimeters, EV chargers, and more.
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