Committed to World-Class Low-Voltage Protection & Power Control Systems
Zhejiang Graybar Electric Co., Ltd. is a high-technology manufacturer and verified exporter specializing in intelligent low-voltage circuit protection, motor control, and power distribution devices. Located in Huangyu Village, Liushi Town, Wenzhou—universally recognized as China's premier electrical equipment manufacturing hub—our company seamlessly combines regional industrial supply chain strength with rigorous precision engineering.
Our operational footprint encompasses end-to-end component stamping, plastic injection molding, automated precision assembly, thermal-magnetic calibration, and dielectric testing. We serve international distributors, panel builders, switchgear manufacturers, and EPC engineering contractors across more than 100 countries, delivering safety-critical switchgear built to strict IEC, CE, and international standards.
Guided by our core principle of "Customer Trust Through Uncompromising Quality", Zhejiang Graybar Electric Co., Ltd. maintains robust OEM/ODM production lines, supporting custom electrical ratings, bespoke casing colors, custom laser marking, and certified export packaging with low minimum order quantities.
Factory Infrastructure & Production Lines
Inside our Liushi manufacturing facility: dedicated assembly workshops, automated production machinery, and strict testing laboratories.
Precision Circuit Breaker Assembly
Multi-stage progressive assembly lines equipped with high-accuracy calibration tools for bimetallic thermal release units and electromagnetic coils.
Heavy-Duty ACB & SPD Fabrication
Dedicated fabrication floor for 3-pole and 4-pole Air Circuit Breakers up to 6300A, along with surge protection cartridge potting and assembly.
Switching & Motor Control Lines
Automated contact riveting and vacuum coil winding processes ensuring long mechanical and electrical lifespans for AC Contactors and ATS units.
Enterprise Operating Specifications
Verified supplier operational credentials audited on-site for international trade reliability and engineering transparency.
| Company Legal Entity | Zhejiang Graybar Electric Co., Ltd. |
| Operational Address | Huangyu Village, Liushi Town, Wenzhou, Zhejiang Province, China (Post Code: 325604) |
| Business Classification | Manufacturer, Exporter & Custom OEM/ODM Solution Provider |
| Total Annual Revenue | Exceeding USD $100 Million |
| Core Product Portfolio | Miniature Circuit Breakers (MCB), Moulded Case Circuit Breakers (MCCB), Air Circuit Breakers (ACB), Surge Protective Devices (SPD), Automatic Transfer Switches (ATS), AC Contactors |
| Reference Testing Standards | IEC 60898-1, IEC 60947-2, IEC 61643-11, IEC 60947-6-1, IEC 60947-4-1, CE LVD/EMC Directives |
| Average Production Response | Within 2 hours for technical quotes; expedited dispatch available for standardized stock items |
| Primary Ocean Shipping Ports | Ningbo Port / Shanghai Port (direct container drayage access) |
| Verified Official Inquiries | [email protected] |
Rigorous Quality Control
100% automated routine verification on short-circuit trip thresholds, thermal bimetal deflection, dielectric withstand voltages, and mechanical operating endurance before release.
Bespoke OEM / ODM Services
Comprehensive personalization including buyer private brand labeling, pad printing, laser engraving, customized current curves (B, C, D), and localized multilingual packaging design.
Flexible B2B Order MOQs
Accessible minimum orders starting at just 5 pcs for MCB/MCCB/SPD and 1 pc for high-power Air Circuit Breakers, allowing global contractors to trial test prototypes before scaling.
Global Trade Distribution & Supply Chain
Our electrical equipment provides dependable circuit protection across residential, commercial, infrastructure, and renewable energy installations worldwide.
Logistics & Quality Commitment
With direct highway connection to Ningbo and Shanghai maritime hubs, Zhejiang Graybar Electric Co., Ltd. ensures rapid port dispatch, consolidated mixed-container packing, and shockproof pallets designed specifically for rough sea transit.
All shipments are accompanied by detailed factory inspection records, certificate copies, test curves, and standardized commercial packing lists to accelerate customs clearance.
Independently Audited Physical Premises
Zhejiang Graybar Electric Co., Ltd. operates with total corporate transparency. Our physical factory buildings, fabrication lines, testing equipment, and company registration in Liushi Town, Wenzhou are authenticated by world-leading third-party inspection agencies.