Import All Series Circuit Breaker For 10, 12, 24, 35kv — Buy in Bulk from Supplier in China

Yuyao Hengtong Electric Appliance Factory manufactures outdoor and indoor medium voltage circuit breakers for distribution networks at 10 kV, 12 kV, 24 kV, and 35 kV (40.5 kV) voltage classes. The product range includes vacuum circuit breakers (VCB) in the ZW32, ZW43, ZW8, ZW20, ZW32-24, and ZW7 series for outdoor installation, plus VS1 (ZN63A), VD4, and ZN28 indoor vacuum types. An SF6 insulated option exists in the LW7 series for 33 to 40.5 kV applications where vacuum interruption may not suit environmental conditions. The FZW28 (VSP5) represents a fused load switch alternative for 12 kV networks requiring combined switching and protection functions.

Vacuum interrupters form the arc-quenching core of most listed products, utilising ceramic or glass envelopes with copper-chromium contacts in a sealed vacuum environment. Typical vacuum circuit breaker characteristics include rated short-circuit breaking currents of 20 kA or 25 kA, with mechanical endurance often specified at 10,000 operations for load current and 30 to 100 short-circuit breaking operations depending on series and rating. The ZW43 series offers miniaturisation with integrated zero sequence current transformer and recloser controls or permanent magnet actuator options. SF6 type LW7 breakers use sulphur hexafluoride gas insulation, requiring gas density monitoring and periodic leakage checks as part of maintenance protocols.

These circuit breakers serve state grid corporations, municipal power bureaus, industrial substations, and renewable energy collection stations across 50 Hz and 60 Hz networks. Outdoor types employ porcelain or composite polymer insulators with creepage distances selected per pollution level (typically 25 mm/kV for light pollution, 31 mm/kV for medium). Buyers should confirm with Yuyao Hengtong the specific rated current, short-circuit breaking capacity, and control voltage for their application, as the 'all series' designation encompasses multiple specification variants. Standards compliance (IEC 62271-100 for high-voltage alternating-current circuit breakers, or GB 1984 for domestic Chinese supply) should be verified directly with the manufacturer for export orders.

Yuyao Hengtong Electric Appliance Factory is located at No. 225, Huangniyan Road, Mazhu Town, Yuyao City, Zhejiang Province, a region with established electrical equipment manufacturing clusters. The supplier holds imported tier status with harbour trust level, indicating platform-processed data without additional verification layers. The response rate shows 0.00% with zero average response hours, suggesting either a newly listed profile or inactive enquiry monitoring. Buyers should initiate direct contact to assess current communication practices and technical support availability.

The factory specialises in medium voltage switchgear components spanning vacuum and SF6 technologies for both outdoor pole-mounted and indoor switchgear applications. No information regarding factory size, annual production capacity, employee count, or specific client installations appears in available data. The product range indicates capability across multiple interrupting technologies and voltage levels, implying some breadth in design and assembly. Buyers are advised to request type test reports from accredited laboratories (such as Xihari or KEMA), ISO 9001 certification, and evidence of routine production testing before finalising supply agreements.