Import Ac Vacuum Contactor Hvj3-12kv — Buy in wholesale FOB from Supplier in China

The HVJ3-12kV AC vacuum contactor from Hubei Jucro Electric Co. is a medium-voltage switching device for 50Hz power systems at rated voltage 12kV, available in 160A, 250A, 400A and 630A variants. Control voltage options are 220V, 110V and 380V, with main circuit power frequency withstand voltage rated at 42,000V and auxiliary/control circuits at 2,500V and 2,000V respectively. The contact gap measures 5±0.5mm with over-travel of 2±0.2mm, and contact pressure exceeds 85N. Its making capacity is 10Ie for 100 operations, breaking capacity 8Ie for 25 operations, and limit opening current reaches 10Ie. The unit weighs 30kg and achieves one million mechanical operations.

The vacuum interrupter technology eliminates arc quenching media, relying instead on metal bellows and copper-chromium contacts in a sealed ceramic or glass envelope. This construction suits the contactor for integration with fuse-protected F-C switchgear and electromagnetic starter combinations. The 12kV insulation level corresponds to standard medium-voltage distribution classes, with pollution degree 3 rating appropriate for standard industrial environments. Operating altitude must not exceed 1,000m, and ambient temperature ranges from -5°C to 40°C with 24-hour average not exceeding 35°C. At 40°C, relative humidity must remain below 50% to prevent condensation-related flashover. The vacuum arc chamber provides reliable interruption with minimal contact erosion, a standard advantage of vacuum technology over air-break or SF6 alternatives in this voltage class.

Typical buyers include switchgear OEMs, power distribution contractors, and industrial facility engineers specifying F-C (fuse-contactor) motor control centres, transformer feeder circuits, and capacitor bank switching. The contactor's 10Ie making capacity accommodates motor starting inrush, while 8Ie breaking capacity handles normal running overloads. Integration with suitable protective relays allows coordinated fault clearance. Buyers should confirm with Hubei Jucro Electric Co. whether the 630A variant shares identical mechanical dimensions with lower-current models, as this affects panel design. The supplier's location in Zhijiang, Hubei Province, places manufacturing within China's established electrical equipment corridor, though buyers should verify current lead times and Incoterms directly.

Hubei Jucro Electric Co. operates from Xiannv 4th Road in the Xiannv Industrial Zone, Zhijiang, Hubei Province, with postal address in Yichang 443200. The company's trust tier is classified as harbor, indicating a verified business registration status on the platform. The response rate currently shows 0.00 with zero average response hours, suggesting the profile may be newly listed or the supplier has not yet engaged with buyer inquiries through this channel. No additional company history, employee count, revenue figures, or client references are stated in the available profile data.

The listing presents Hubei Jucro Electric Co. as a manufacturer of vacuum contactors for medium-voltage power applications, with the HVJ3 series specifically targeting 7.2kV and 12kV systems. Buyers should note that the profile does not disclose ISO certification status, factory audit results, export licence details, or R&D capacity. The industrial zone location in Hubei places the company within a central Chinese manufacturing region with established electrical equipment supply chains. Prospective importers are advised to request direct factory verification, quality management system documentation, and reference installations before placing orders.