High Voltage SF6 Circuit Breaker use sulfur hexafluoride gas for fast, reliable arc interruption and insulation in high-voltage substations. Hairui Electric supplies the LW8-40.5 (40.5kV), LW9-72.5 (72.5kV), LW36-126 (126kV), and LW-252 (252kV) series outdoor SF6 circuit breakers, with rated currents up to 4000A and breaking capacities up to 50kA, for utility grids, substations, and industrial power systems.


For decades, Hairui has been dedicated to helping numerous well-known enterprises and institutions customize reliable equipment. With strong production capabilities and professional expertise, we ensure that our equipment is fully compliant and meets your requirements.








We supply LW8-40.5 (40.5kV), LW9-72.5 (72.5kV), LW36-126 (126kV), and LW-252 (252kV) series outdoor SF6 circuit breakers, with rated currents up to 4000A and breaking capacities of 40kA–50kA, for 35kV–220kV substation and grid applications.
Yes. We offer OEM/ODM for rated current, breaking capacity, operating mechanism, control voltage, and accessories, and can tailor products to your single-line diagram and site conditions.
Yes. Our HV SF6 circuit breakers are designed and tested in line with IEC 62271-100 and GB 1984, and the factory operates under ISO 9001 quality management.
Absolutely. We support utilities, EPC contractors, and distributors with bulk procurement, competitive B2B pricing, complete export documentation, and scheduled delivery.
Yes. Private labeling and white-label solutions are available so distributors and resellers can market our HV SF6 circuit breakers under their own brand.
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