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 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 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

H59 fully‑sealed oil‑filled transformer with all HV/LV bushings top‑mounted, plug‑in HV bushings, off‑circuit tap‑changer and integrated multi‑parameter protection. It complies with IEC 60076, IEC 60354, IEC 60137 and NF C52‑112, with custom‑winding & accessory options.

REC‑12 uses pure‑air/nitrogen instead of SF₆, IP67 fully‑sealed gas‑tank with 0.01% annual leakage rate, partial discharge below 5pC, max mechanical life 30 000 times, modular cabinet variants. It complies with relevant IEC/ANSI MV switchgear standards and supports integrated primary‑secondary outdoor prefabricated station.