China · Yongfan Electric Co., Ltd. (YOF®) — ISO9001 & CCC Certified OEM/ODM Manufacturer
Founded in 2009 in Liushi Town, Yueqing (China's Electrical Manufacturing Capital), China · Yongfan Electric Co., Ltd. (YOF®) engineers and manufactures wholesale Control & Dry-Type Transformers (30VA–1000kVA), Microprocessor SCR Motor Soft Starters & Switchgear Cabinets (5.5kW–630kW), YFX01 Autotransformer Starting Boxes (10kW–320kW), and High-Precision AC Voltage Stabilizers & Contact Variacs (0.2kVA–1000kVA) for global electrical distributors, switchgear fabricators, and OEM machinery builders.
5 Core Manufacturing Lines (Direct Access Below)
1. Control, Lighting & 3-Phase Dry Transformers 30VA – 1000kVA
2. Intelligent SCR Soft Starters & Cabinets 5.5kW – 630kW
3. YFX01 Autotransformer Starting Boxes 10kW – 320kW
4. Automatic & Non-Contact Voltage Stabilizers 500VA – 1000kVA
5. Single & Three-Phase Contact Variacs 0.2kVA – 30kVA
Every product series manufactured by China · Yongfan Electric Co., Ltd. (YOF®) is displayed directly below for rapid wholesale comparison, technical datasheet inspection, and bulk RFQ submission—no multi-level category clicking required.
We build custom electrical transformers, motor soft start panels, and industrial voltage regulators strictly matched to your target country's grid voltage, cabinet footprint, and private-label branding.
Founded in 2009, China · Yongfan Electric Co., Ltd. is a specialized manufacturer engaged in the R&D, production, and global B2B supply of industrial automation and power control equipment. Located in the Dongfeng Industrial Zone of Liushi Town, Yueqing City, Zhejiang Province, our factory produces 5 major series and more than 300 models and specifications, covering:
Adhering to our core corporate philosophy of "Customer-Oriented, High-Tech Driven, Integrity First, Quality First" , Yongfan Electric holds ISO9001 International Quality Management System Certification and China Compulsory Certification (CCC). We warmly welcome overseas wholesalers, importers, and industrial partners for long-term win-win cooperation.
FREQUENTLY ASKED QUESTIONS FOR IMPORTERS & DISTRIBUTORS
Yes. Across our BK, JBK3/JBK5, JMB/BJZ/DG, and SBK/SG(ZSG) transformer series, primary voltages (e.g., 220V, 380V, 400V, 415V, 440V, up to 660V/1000V) and secondary control/lighting/signal voltages (6V, 6.3V, 12V, 24V, 27V, 36V, 48V, 110V, 127V, 220V, 380V) as well as Δ/Y winding connections can be custom-wound according to your engineering drawings or terminal block layout.
TND(SVC) (0.5–30kVA) and TNS(SVC) (1.5–60kVA) use servo-motor driven contact regulators for high-accuracy (±3%) general commercial and laboratory use. SBW (30–1000kVA) provides heavy-duty high-power compensation with ≥98% efficiency. DJW (10–100kVA) & SJW (10–1000kVA) combine microcomputer control with SCR non-contact thyristor switching—eliminating carbon brush wear and mechanical failure while delivering 0.2–0.5s ultra-fast response and three-phase automatic balance.
Specify the Online Intelligent Soft Starter / Cabinet (5.5kW–630kW) when operating in harsh industrial environments with dust, smoke, sand, or ash, or where simplified 3-wire in (ABC) / 3-wire out (UVW) contactless operation without an external AC bypass contactor is preferred (also supports low-voltage starting ≥320V). Specify the Bypass Type Intelligent Soft Starter / Cabinet (5.5kW–630kW) when minimizing continuous thermal dissipation inside enclosed switchgear rooms is the priority—once the motor reaches full speed (Ue=100%), it transfers load to an AC bypass contactor (KM) while maintaining 12 built-in motor protections, RS485 Modbus communication, and DC 4–20mA output.
Click "+ Add to RFQ" on any product card above to build your inquiry list, or fill out the Direct Factory RFQ Form below with your required model codes, kVA/kW capacities, primary/secondary voltages, and order quantity. You can also email our export engineering team directly at YOF@cnyofan.com or call +86-577-27877036.
Connect directly with our factory sales and electrical engineering team in Yueqing, Zhejiang, for bulk pricing, custom voltage winding specifications, and OEM/ODM distributor partnerships.
Factory Address:
Dongfeng Industrial Zone, Liushi Town, Yueqing City, Zhejiang Province, China
Fast response within 12 business hours · Direct factory pricing & technical datasheets
Add: Dongfeng Industrial Zone, Liushi Town, Yueqing City, Zhejiang Province, China
Tel: +86-577-27877036 | Fax: +86-577-27877037
Mobile: +86-13968736791 / +86-13868325933
Email: YOF@cnyofan.com
© China · Yongfan Electric Co., Ltd. (YOF®). All Rights Reserved.
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