Zhejiang Graybar Electric Co., Ltd. is committed to engineering and manufacturing cutting-edge power control, circuit protection, and switching solutions. Located in Liushi Town, Wenzhou—widely acknowledged as China’s electrical capital—we integrate precision moulding, automated sub-assembly, calibration, and rigorous dielectric testing within our specialized facilities.
Our comprehensive catalog spans miniature circuit breakers (MCB), moulded case circuit breakers (MCCB), intelligent air circuit breakers (ACB), surge protective devices (SPD), automatic transfer switches (ATS), and electromagnetic AC contactors. Built in strict accordance with international IEC standards, our solutions reliably protect electrical infrastructure across more than 100 countries and regions.
We maintain an agile, customer-oriented manufacturing methodology that delivers flexible customisation (OEM/ODM), low trial minimums, consolidated container logistics, and responsive technical engineering support for distributors, EPC project contractors, and panel builders worldwide.
Our integrated facility ensures strict adherence to electrical tolerances, material purity, and consistent operational longevity.
Dedicated mechanical and electrical engineers configure custom tripping curves (B, C, D), specific rated breaking capacities, custom coil voltages, private labelling, and custom terminal alignments tailored to local utility guidelines.
Each batch undergoes 100% electrical continuity, instant trip-time verification, contact resistance analysis, and high-voltage dielectric tests before packing, supported by batch-level component traceability.
Positioned close to Ningbo and Shanghai maritime hubs, we handle export documentation, shockproof maritime packaging, and multi-category consolidated shipments to optimize landed freight costs for global buyers.
Complete transparency regarding corporate credentials, facility operations, and geographic market distribution.
A photographic overview of our manufacturing workshops, assembly stations, and testing environments.
Contact our technical engineering team directly at [email protected] for specifications, CAD drawings, or wholesale pricing.