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RHD-Dead Tank SF6 Circuit Breaker Catalog
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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,
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OMR Type Outdoor Gas Insulated Ring Main Unit
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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
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MNS Type LV withdrawable switchgear
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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
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GCS Type LV withdrawale switchgear
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ROCKWILL GCS Type LV withdrawable switchgear is low voltage withdrawable metal enclosed switchgear designed for three-phase AC 50Hz power system, rated operational voltage up to 690V. It adopts modular assembly structure with withdrawable functional units for motor control, power distribution and protection. The product complies with IEC 60439-1:2019, IEC 61439-1:2019 and IEC 61439-2:2021. Relevant documents include Type Test Certificate No. TT-2025-04140, Witness Test Report No. WT-2025-09073,
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SM66 type 36kV 40.5kV air insulated Ring Main Unit (RMU)
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ROCKWILL SM66 type 36kV / 40.5kV air insulated Ring Main Unit (RMU) is modular metal-enclosed medium voltage switchgear for 36kV distribution system with rated maximum voltage 40.5kV. It uses atmospheric air as insulating medium, fitted with high-performance load break switch and optional fuse combination unit for transformer protection. The product complies with IEC 62271-1:2017, IEC 62271-103:2019 and IEC 62271-200:2021. Relevant documents include Type Test Certificate No. TT-2025-04135, Witne
