Reliable Engineering & Verified Track Record
Shaanxi Zelqo Power Co., Ltd. operates in Xi'an, Shaanxi, China, integrating dedicated R&D calculation, sample prototyping, and bulk production of customized power electronics.
Operational Benchmarks vs. Industry Average
Independent Third-Party Verification
The enterprise premises and production operations of Shaanxi Zelqo Power Co., Ltd. have been inspected and confirmed on-site by Intertek. As an authorized Custom Manufacturer, we maintain complete traceability from raw magnet wire and silicon cores to final packaged goods.
- Design-based & Sample-based customization: Complete coil winding, core gapping, potting, and mounting bracket modifications.
- Documented Raw Material Inspection: Copper purity, core permeability, bobbin UL94-V0 flame retardance, and insulation tape dielectric resistance.
- Full Traceability & Electrical Testing: Every production batch passes semi-finished impulse checks, burn-in aging, and final hi-pot breakdown tests.
Inside Our Workshop & QC Stations
Explore our dedicated coil winding lines, specialized precision machinery, and comprehensive electrical testing lab.

























Core Competencies & Customization Options
We configure primary/secondary turns, core materials, terminal pinouts, and potting resins to meet precise target electrical specifications.
Toroidal Transformers
- Low audible hum & negligible stray magnetic field
- Dual/quad secondaries for high-end audio amplifiers
- Elevator control multi-tap auto transformers
- Center hole potting with mounting bolt/washers
High Frequency Magnetics
- EE, EI, EF, PQ, RM, and EPC ferrite core geometries
- Flyback, push-pull, half-bridge & LLC topologies
- Triple insulated wire (TIW) for reinforced isolation
- Common mode chokes and custom inductor coils
Power Supplies & Adapters
- Enclosed industrial switching power supplies (12V/24V/48V)
- Rainproof outdoor LED driver supplies
- Wall-mount & desktop AC-DC power adapters
- Universal interchangeable plugs (US, EU, UK, AU)
Internationally Recognized Certifications
Verified test records and safety compliance reports enabling smooth import clearance across global jurisdictions.
FCC Certification
Ensures equipment complies with federal electromagnetic interference limits, preventing disruption to radio communication channels in North America.
LVD Safety Directive
Verifies compliance with electrical insulation and shock-prevention regulations within 50–1000V AC or 75–1500V DC operating ranges.
CE Marking Certification
Mandatory certification confirming conformity with European core safety, health, and environmental performance directives for commercial power units.
Declaration of Conformity
Official legal manufacturer declarations substantiating that our electronic switching converters and transformers strictly adhere to EU harmonized standards.
Exporting to 30+ Countries Worldwide
With convenient access to Qingdao Port and well-established export packing practices, Shaanxi Zelqo Power Co., Ltd. serves enterprise procurement teams across Europe, the Americas, and the Middle East.
Request Detailed Engineering Specs or Sample Validation
Our sales engineering team provides full calculation sheets, custom sample windings, and complete dielectric testing records within fast prototype turnarounds.
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