This product is an indoor high-voltage load-break switch rated at 10kV, 50Hz for three-phase AC distribution systems, mainly used to switch and close/open normal load current and closed-loop current. It can be combined with a current-limiting fuse to form a load-break switch–fuse combination unit, achieving control and protection of lines and equipment.
Features:
The switch body has a simple, compact structure with a reliable operating mechanism, good insulation performance, and stable switching action; when combined with a current-limiting fuse, it can effectively clear short-circuit fault current, protecting the safe operation of lines, transformers, and other equipment.
Applications:
Widely used in terminal substations, box-type substations, and various industrial/mining distribution locations on urban and rural grids, serving as a control and protection switch for ring-main supply units or dual-power switching units, meeting the frequent-operation needs of medium- and low-voltage distribution systems.


Zhejiang Yingchuang Electric Co., Ltd. was established in March 2018 and is a qualified approved supplier for State Grid and China Southern Power Grid. We specialize in the R&D and manufacturing of high-voltage electrical equipment, including primary-and-secondary integrated pole-mounted circuit breakers, indoor/outdoor vacuum circuit breakers, disconnecting switches, ring main units, and complete switchgear assemblies. Guided by "craftsmanship quality and sincere service," we offer full OEM/ODM customization across our entire product range. In 2024, we were recognized as a Provincial Innovative SME and a National High-Tech Enterprise.
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