Hit enter to search or ESC to close
For Purchasing Managers, Technical Directors & Operations Leaders seeking reliable, cost‑effective magnetic components.
Get Free Quote in 24 h1. Over‑priced, low‑quality units. 68% of US manufacturers report paying up to 30% more for imported transformers that fail early compliance tests.
2. Mismatched specifications. Selecting a voltage transformer for a current‑monitoring application leads to inaccurate metering and regulatory penalties.
3. Long lead times. Traditional suppliers in China quote 8‑12 weeks, disrupting production schedules.
4. Unclear certification pathways. Without CE, FCC, or UL documentation, customs delays can add $5 k‑$15 k per shipment.
5. Lack of OEM/ODM flexibility. One‑size‑fits‑all designs force you to redesign PCBs, increasing engineering effort by 20%.
| Parameter | Current Transformer (CT) | Voltage Transformer (VT) |
|---|---|---|
| Typical Ratio | 200 A/5 A | 10 kV/1 kV |
| Accuracy Class | 0.2 % (Class 0.2) | 0.5 % (Class 0.5) |
| Frequency Range | 45 Hz–65 Hz | 45 Hz–65 Hz |
| Insulation Class | F (155 °C) | B (130 °C) |
| Mounting | Panel, DIN‑rail, PCB | Panel, Enclosure |
A **current transformer (CT)** steps down high line current to a lower, measurable value while preserving phase, ideal for metering and protection. A **voltage transformer (VT)**, also called a potential transformer, steps down high voltage to a lower level for safe measurement and isolation.
Select a ratio that keeps the secondary current within the 0.5 A‑5 A range at full load. For a 150 A motor, a 200 A/5 A CT provides a 40 : 1 ratio, delivering 5 A at full load with a safety margin.
Yes. Our R&D team can develop custom winding ratios, shielding, and enclosure dimensions. Minimum order quantity (MOQ) starts at 500 units, with free CAD drawings.
All units ship with CE, FCC, UL, RoHS, and ISO 9001 certificates. We can also provide custom test reports (e.g., IEC 61869) upon request.
Standard lead time is 2‑4 weeks for stocked cores; 6‑8 weeks for fully custom designs. Expedited production (1‑2 weeks) is available for an additional 15% surcharge.
All products carry a 24‑month limited warranty covering material and workmanship. Our technical support desk operates 24 h/7 d, and we provide on‑site troubleshooting for critical installations.
Order before May 31 2026 and receive a fully functional CT or VT sample (up to 5 A/5 V) at no cost, plus a 10% price reduction on the initial purchase.
Request Free SampleOr call us now: +1 800‑555‑0199 (US Toll‑Free)
John D., Senior Purchasing Manager, AutoParts Inc. – “Xinchangda’s CTs delivered 99.9% accuracy. We cut our quality‑control re‑work by 37% and saved $45 k in the first quarter.”
Maria S., Operations Lead, GreenEnergy Solutions – “The custom VT arrived in 3 weeks, fully tested for UL‑1449. Installation time dropped from 2 days to 4 hours.”
Kevin L., Technical Director, MedTech Corp. – “Regulatory compliance was a nightmare until Xinchangda provided complete CE & FCC dossiers. Our product launch was accelerated by 6 weeks.”
Linda Zhang, Senior Magnetic Solutions Engineer – With 12 years of experience designing transformers for the US automotive, medical, and renewable‑energy markets, Linda leads Xinchangda’s North‑America technical support team. She holds a B.S. in Electrical Engineering (MIT) and is a certified ISO 9001 auditor.
Contact Linda directly: linda.zhang@xcdmagnetic.com | Phone: +1 415‑555‑0198
Trusted By Leading Brands Worldwide
Current-transformer-vs-voltage-transformer Inverter-Transformer Saturation-current transformer-electrical
Certificates: CE, FCC, UL, RoHS, ISO 9001, VDE, GS, CB