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Residual Zero Phase Split Type Current Transformer
US$6.00-18.00
10 Pieces
Sample price:US$8.00/piece.Request sample
Product profile
Customization
AvailableTransport Package
Standard BoxesSpecification
308*62*210.5Model NO.
TR21 AH seriesTrademark
TROrigin
ChinaHS Code
850450Production Capacity
300000Key features
Wide Measurement Range: Rated primary current from 10mA to 5A with secondary range of 0-5mA.
High Accuracy: Accuracy class 0.2% ensures precise residual current detection.
Excellent Balance Characteristics: Designed for high immunity to interference and strong electromagnetic field resistance.
Superior Core Material: Uses high permeability permalloy or nanocrystalline for high sensitivity and linearity.
Epoxy Resin Casting: Provides excellent stability and durable protection.
Versatile Applications: Ideal for motor protection, relay protection, small current grounding, and fire monitoring.
Flexible Output Method: Offers adaptable output configurations for various system needs.
Company profile

Business Type: Manufacturer/Factory, Group CorporationExport Year: 2015-12-12Average Response Time: ≤1.81h
AI-Powered supplier vetting
SummaryThe supplier demonstrates established manufacturing, quality-management, export, customization, and service-process capabilities. Evidence includes five precision-transformer automation production lines, ERP integration, ISO and product certifications, 18 years of export experience, in-house import/export rights, and documented complaint and corrective-action procedures. It offers ODM and SDK-related capabilities, but reported no new products in the past year and does not provide OEM services for popular brands. Manufacturing capacity is not supported by a valid contract with the factory or related subcontractor. Overseas warehouse and showroom services are unavailable, while inventory capability, international quotation/payment options, and lead times within 15 working days are documented. Financial assessment is inconclusive because the provided figures are not interpretable without units or context.
Supplier typeThe supplier is evidenced as a manufacturer with five precision-transformer automation production lines, ERP-enabled production integration, in-stock capability, ODM availability, and in-house import/export rights. However, the absence of a valid manufacturing-capacity contract with its factory or related subcontractor is a documented structural limitation.
CertificationsThe supplier reports ISO9001:2015, ISO14001, and ISO45001:2018 management-system certifications, along with CE and RoHS product-compliance certifications. Its quality-system certification history extends back to ISO9001 certification and includes the 2015 version obtained in 2018.
After-Sales capabilityWritten and followed procedures are documented for service assessment, corrective and preventive actions, and customer complaints, supporting structured after-sales handling. Inventory capability, accepted international service terms, and lead times within 15 working days are also reported, although overseas warehouse and showroom services are unavailable.
Production capacityFive precision-transformer automation production lines, ERP-based information integration, inventory capability, 21 qualified service-capability suppliers, and peak- and off-season lead times within 15 working days support substantial operational capability. The lack of a valid contract with the factory or related subcontractor is an explicit production-capacity governance deficiency.
Customization capabilityThe supplier supports customization from customer designs and full customization, and also offers ODM services. It does not provide OEM services for popular brands, which limits applicability for brand-specific OEM programs but does not negate its general customization capability.
Client casesThe supplier reports collaboration with Fortune 500 companies and a repeat-buyer preference rate of 30%–50%. It also reports recognition as a Hubei brand-name product and well-known trademark, but the provided slices do not identify customer names, project details, or verifiable case outcomes.
Product Q&A
Q:What is the rated primary current range?
A:
The rated primary current ranges from 10mA to 5A.
Q:What is the accuracy of the TR21 series?
A:
The accuracy is 0.2%.
Q:What materials are used for the magnetic core?
A:
The core uses high permeability permalloy or nanocrystalline materials.
Q:What are the main applications for this transformer?
A:
It is suitable for motor protection, relay protection, small current grounding systems, and electrical fire monitoring.
Q:What is the rated secondary current range?
A:
The rated secondary current range is 0 to 5mA.
Send Inquiry
*To:
Hubei Tianrui Electronic Co., Ltd.
Hubei Tianrui Electronic Co., Ltd.*Content:
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