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For Purchasing Managers, Technical Directors & Operations Leaders who struggle with high electricity bills and unreliable motor performance, our factory‑direct Wye‑Delta connection kits deliver consistent voltage balance, lower harmonic distortion, and rapid‑delivery OEM/ODM design.
Data point: A 2025 industry survey of 312 US manufacturers showed that 68% plan to replace outdated three‑phase connections within the next 12 months.
| Parameter | Value | Unit |
|---|---|---|
| Rated Voltage (Line‑Line) | 380‑415 | V |
| Rated Current | 10‑200 | A |
| Frequency | 50/60 | Hz |
| Insulation Class | Class F | ‑ |
| Operating Temperature | ‑40 ~ +85 | °C |
• Industrial Motor Drives: A Midwest metal‑fabrication plant replaced its star‑star network with our Wye‑Delta kits and recorded a 22% reduction in monthly electricity spend (≈ $18,400 saved).
• Renewable Energy Converters: A solar‑inverter OEM used our custom‑design Wye‑Delta modules to meet IEC‑61800‑9 compliance three weeks ahead of schedule.
• Medical Imaging Equipment: Our CE‑certified connections eliminated voltage spikes that previously caused 4% downtime in MRI units.
A Wye‑Delta connection links three‑phase windings in a star (Wye) configuration on the primary side and a delta on the secondary side. It is ideal for high‑starting‑torque motors, large‑scale drives, and applications requiring voltage balance and reduced harmonic currents.
Yes. Our R&D team can design Wye‑Delta kits from 208 V up to 660 V line‑line, with current ratings from 10 A to 250 A, fully compliant with IEC standards.
Standard bulk (≥10 k units) ships within 5 working days after PO confirmation. Express shipping and air‑freight options are available for urgent projects.
Our dedicated support line (24 h) and on‑site engineering assistance are included for the first 12 months. Unlimited remote troubleshooting is offered at no extra charge.

All units undergo UL‑listed testing, CE marking, and RoHS verification. Documentation is provided with every shipment for customs clearance.
Limited‑time offer: Free engineering sample (valued at $1,200) for the first 20 US inquiries. Stock is limited – order within 7 days to secure the free sample and 5‑day express delivery.
Alan K., Operations Manager, AeroTech Corp. – “The Wye‑Delta kits integrated perfectly with our existing PLCs. We saw a 19% reduction in peak demand charges within the first month.”
Susan P., Procurement Lead, MedSupply USA – “Fast OEM design and CE certification saved us from a costly redesign. Delivery was on schedule, and the product passed all FDA‑related electrical safety tests.”
Mike D., Technical Director, GreenPower Solutions – “Our solar‑inverter line now meets IEC‑61800‑9 without extra filters. The ROI is projected at 18 months.”
Trusted By Global Leaders
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Compliance & Certifications: CE, FCC, RoHS, ISO 9001, VDE, CB, GS, SAA, IPPC – all documents available on request.