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Current transformer manufacturers

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Huaibei Huadian Automation Technology Co., Ltd.mic-icon
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CB Current Transformer Toroidal Core Current Transformer CT 250 5A Split Type 5 AMP CT 30A Current Transformer CT Transformer 1A

CB Current Transformer Toroidal Core Current Transformer CT 250 5A Split Type 5 AMP CT 30A Current Transformer CT Transformer 1A

US$5.00-40.00
1 Piece(MOQ)
Sample Available
Current Transformer Split Core Current Transformer and Potential Transformer Motor 100A Current Sensor Low Power CT Transformer

Current Transformer Split Core Current Transformer and Potential Transformer Motor 100A Current Sensor Low Power CT Transformer

US$5.00-40.00
1 Piece(MOQ)
Sample Available
Current Transformer Digital Current Transformer Transmitter CT 300 5A Current Transformer 4000 5A Current Transformer 1A

Current Transformer Digital Current Transformer Transmitter CT 300 5A Current Transformer 4000 5A Current Transformer 1A

US$5.00-40.00
1 Piece(MOQ)
Sample Available
CT Transformer Split Core CT Current Transformer Potential Transformer Mv Current Transformer Small Magnelab Current Transformer

CT Transformer Split Core CT Current Transformer Potential Transformer Mv Current Transformer Small Magnelab Current Transformer

US$5.00-40.00
1 Piece(MOQ)
Sample Available
Transformers and Current 5 1 Current Transformer Current Transformer 1A Split Core Current Sensor Non Invasive AC 250 5A 1A

Transformers and Current 5 1 Current Transformer Current Transformer 1A Split Core Current Sensor Non Invasive AC 250 5A 1A

US$5.00-40.00
1 Piece(MOQ)
Sample Available
Current Transformer Core 5 5 Current Transformer Amplifier Current Transformer 300 5 Residual Manufacturer CT Transformer 5A 1A Core Balance Current Transformer

Current Transformer Core 5 5 Current Transformer Amplifier Current Transformer 300 5 Residual Manufacturer CT Transformer 5A 1A Core Balance Current Transformer

US$5.00-40.00
1 Piece(MOQ)
Sample Available
CB Current Transformer DC Current in Transformer Current Potential Transformer Line Current Transformer R Ict Current Transformer

CB Current Transformer DC Current in Transformer Current Potential Transformer Line Current Transformer R Ict Current Transformer

US$5.00-40.00
1 Piece(MOQ)
Sample Available
Current Transformer Current Transformer DC Output CT 200 5A 30 5 Current Transformer Current Sensor 5A Toroid Current Sensor 1A

Current Transformer Current Transformer DC Output CT 200 5A 30 5 Current Transformer Current Sensor 5A Toroid Current Sensor 1A

US$5.00-40.00
1 Piece(MOQ)
Sample Available
Current Transformer Core Current Transducer 600A Bar Current Transformer Power Meter Current Transformer Voltage Output 25 5

Current Transformer Core Current Transducer 600A Bar Current Transformer Power Meter Current Transformer Voltage Output 25 5

US$5.00-40.00
1 Piece(MOQ)
Sample Available
Current Transformer Core CT Sensor Three Phase Current Transformer Zero Transformer CT Clamp Split Core DC Current Sensor 5A 1A

Current Transformer Core CT Sensor Three Phase Current Transformer Zero Transformer CT Clamp Split Core DC Current Sensor 5A 1A

US$5.00-40.00
1 Piece(MOQ)
Sample Available

Sourcing guidance for Current Transformer

How to choose the right Current Transformer for industrial applications?

Selecting a Current Transformer requires matching technical specifications to your specific electrical system. Key factors include the Accuracy Class (e.g., 0.2s or 0.5 for billing, 5P10 or 10P20 for protection), the Rated Burden (VA capacity to drive connected meters), and the Transformation Ratio (e.g., 100/5A). Ensure the Insulation Level (e.g., 0.66kV, 10kV, or 35kV) matches your system voltage to prevent catastrophic failure.

What are the critical compliance standards for international procurement of CTs?

Buyers must verify that products adhere to IEC 61869-2 (the international standard for instrument transformers) or IEEE C57.13 for the North American market. For European exports, CE marking and RoHS compliance are mandatory. If the CT is used for revenue metering, look for MID (Measuring Instruments Directive) certification or local utility approvals.

What is the difference between Measuring CTs and Protection CTs?

Measuring CTs are designed to be highly accurate at normal load currents but saturate quickly during a fault to protect connected instruments. Conversely, Protection CTs are designed to remain linear and not saturate during high-current fault conditions, ensuring that protective relays can accurately detect and trip the circuit breaker.

How does the physical design (Split-core vs. Solid-core) impact procurement?

Split-core CTs are ideal for retrofitting existing installations because they can be installed without disconnecting primary busbars, significantly reducing labor costs. Solid-core (Ring-type) CTs are generally more accurate and cost-effective for new builds where cables can be threaded through during the initial assembly phase.

Cross-Border Purchasing Considerations for Current Transformers

What are the primary risks when sourcing Current Transformers from overseas?

The biggest risk is technical mismatch or damage during transit. Since CTs contain delicate magnetic cores and copper windings, improper packaging can lead to hairline cracks in the resin or casing, compromising insulation. Always insist on seaworthy packaging and request a Factory Acceptance Test (FAT) report before the balance payment is made.

How can I ensure transaction security and supplier reliability?

Utilize professional B2B platforms like Made-in-China.com, which offer Audit Reports and Verified Supplier statuses. To secure your funds, use secured payment services provided by the platform and consider hiring a third-party inspection agency (like SGS or Intertek) to verify the goods at the manufacturer's warehouse before shipment.

What negotiation strategies work best with CT manufacturers?

Focus on Total Cost of Ownership (TCO) rather than just the unit price. Negotiate for extended warranties (typically 2-5 years) and ask for customized labeling (OEM) to include your specific wiring diagrams. For bulk orders, aim for a 15-20% discount by consolidating your requirements for different ratios into a single production run to optimize the manufacturer's material usage.

What are the logistics and customs precautions for electrical components?

Current Transformers are heavy due to their copper and steel content; therefore, Sea Freight is usually the most economical for bulk orders. Ensure the supplier provides the correct HS Code (typically 850421 or 850431) to avoid customs delays. Be aware of anti-dumping duties or specific import tariffs on electrical machinery in your destination country.

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