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Measurement Application Building Monitoring Small Current Transformer
Negotiable
1 Piece
Sample price:US$0.40/piece.Request sample
Product profile
Customization
AvailableApplication
Electronic, Instrument, MeterType
Current TransformerModel NO.
TR2121-1CPhase
SingleOperation Condition
IndoorUsage
Protection, MeasurementWinding Form
Single Layer & Tightly Wound TypeInsulating Medium
Epoxy ResinInstallation
PCB MountMagnetic Circuit Structure
Single Stage TypeVoltage Transformation Principle
Electromagnetic TypeTransport Package
Srandard Box, Vacuum Package AcceptableSpecification
21*18*20Trademark
TROrigin
Hubei, ChinaHS Code
850450Production Capacity
3000000Key features
Compact PCB Mount Design: Small size and light weight enable easy high-density PCB installation.
Wide Frequency Range: Operates effectively within a frequency range of 45-1500Hz.
Strong Anti-Interference: Secondary current output design provides robust anti-interference ability.
Multiple Current Ratios: Available in various models with input currents from 0-5A to 0-20A.
Low Cost Solution: Economical pricing makes it easy to reduce overall system costs.
Versatile Application: Suitable for multi-function meters, intelligent instruments, and building control systems.
Company profile

Business Type: Manufacturer/Factory, Group CorporationExport Year: 2015-12-12Average Response Time: ≤4.09h
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:Can this transformer be used for outdoor applications?
A:
No, the operation condition is specified for indoor use only.
Q:What is the power frequency withstand voltage?
A:
The power frequency withstand voltage is at least 3000V for most models.
Q:What is the lead time for peak season orders?
A:
The lead time during peak season is one month.
Q:Is the transformer suitable for high-density installation?
A:
Yes, its small size and light weight make it easy for high-density PCB installation.
Send Inquiry
*To:
Hubei Tianrui Electronic Co., Ltd.
Hubei Tianrui Electronic Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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