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W-VACiMB Medium voltage compact circuit breakers

W-VACiMB Medium voltage compact circuit breakers
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W-VACiMB Medium voltage compact circuit breakers - 1

W-VACiMB Medium voltage compact circuit breakers Unmatched reliability, efficiency and safety Featuring IEC ratings of 17.5 kV, Eaton’s W-VACi MB compact circuit breakers are global solutions for 50 and 60 Hz Industry-leading vacuum and solid insulation technology Reliability, efficiency and safety Leading the industry in vacuum interrupter innovation for more than 80 years Mechanically and electrically tested at ISOT 9001-certified factory Reliably switches normal load currents and high-stress fault currents Features increased dielectric strength with solid insulation that is encapsulated in epoxy resin material Sealed from dust and contaminants that are prevalent in the mining industry, providing long, reliable equipment life Provides valuable space savings for applications, such as mining, where space is at a premium Endures much greater opening and closing under fault conditions than open air contact devices, providing longer equipment life in harsh environments Requires little maintenance other than routine inspections, keeping costs down Makes and breaks power in a sealed environment with no external arcing—a significant safety feature in mining applications where hazardous gasses can exist Environmentally friendly • Free of hazardous SF6 gas that contributes to the greenhouse effect and associated climate change Designed and third-party tested to the latest IEC 62271-100 and IEC 62271-1 standards CSAT approved Meets/exceeds the electrical and mechanical endurance requirements of E2 and M2 in accordance with IEC 62271-100 Protects transformers, capacitor banks, motors, busbar sections and cables Well-suited for special environment conditions, such as high altitude, light shock, vibrati

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W-VACiMB Medium voltage compact circuit breakers - 2

Eaton’s W-VACi MB compact medium voltage circuit breakers are composed of three key elements: the vacuum interrupter (VI), the epoxy resin encapsulated pole unit (EPU) and the universal mechanism assembly (UMA). Vacuum interrupter Encapsulated pole unit The vacuum interrupter is where current making and breaking occurs. Eaton’s vacuum interrupter features high-performance copper-chrome contacts. The vacuum in the arc chamber protects the copper contacts from adverse effects, such as contamination and corrosion. Using solid dielectric insulation technology, the vacuum interrupter is...

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