ROCKWILL Indoor Vacuum Circuit Breaker is indoor medium voltage switching apparatus for three-phase AC 50Hz power system, with available rated voltages of 12kV,17.5kV,24kV up to 36kV. It uses vacuum interrupter for arc quenching, featuring high breaking performance, low maintenance and SF₆-free design. The product complies with IEC 62271-1:2017 and IEC 62271-100:2020. Relevant documents include Type Test Certificate No. TT-2025-04160, Witness Test Report No. WT-2025-09093, Routine Factory Test R

ROCKWILL Indoor fixed lateral type vacuum circuit breaker is medium voltage indoor switching device for three-phase AC 50Hz power system, covering rated voltage 12kV to 24kV, rated continuous current 630A ~ 1250A, rated short-circuit breaking current 12kA ~ 25kA. It adopts fixed lateral installation structure with vacuum interrupter for arc extinction, compact layout and easy maintenance. The product complies with IEC 62271-1:2017 and IEC 62271-100:2020. Relevant documents include Type Test Cert

ROCKWILL RHD Dead Tank SF6 Circuit Breaker is outdoor three-phase high voltage switching equipment adopting grounded metal tank structure, with SF6 gas acting as both arc extinguishing and insulating medium. It covers voltage range from 72.5kV up to 362kV, equipped with built-in current transformers and spring operating mechanism for reliable fault interruption. The product complies with IEC 62271-1:2017 and IEC 62271-100:2020. Relevant documents include Type Test Certificate No. TT-2025-04152,

ROCKWILL OMR Type Outdoor Gas Insulated Ring Main Unit is compact metal-enclosed modular switchgear designed for outdoor medium voltage distribution networks. Its primary live components are sealed within a stainless steel tank filled with insulating gas, delivering high integration and stable performance regardless of dust, moisture and temperature fluctuation. The product complies with IEC 62271-1:2017, IEC 62271-103:2019 and IEC 62271-200:2021. Relevant documents include Type Test Certificate

ROCKWILL MNS Type LV withdrawable switchgear is modular low voltage withdrawable metal-enclosed switchgear for three-phase AC 50Hz power system with rated operational voltage up to 690V. It features compact modular structure, withdrawable functional units for power distribution and motor control. The product complies with IEC 61439-1:2019 and IEC 61439-2:2021. Relevant documents include Type Test Certificate No. TT-2025-04144, Witness Test Report No. WT-2025-09077, Routine Factory Test Report No