ABB offers a complete solution for 12/24 kV distribution networks. This consists of SafeRing, a Ring Main Unit (RMU) that can be supplied in various configurations and SafePlus, a compact switchgear with unique flexibility. Product Brochure Gas-insulated Switchgear ELK-04 Modular System up to 170 kV, 4000 A, 63 kA Content Innovation by Tradition 3 Bilding Block System 4–5 Functional Modules 6–21 – Circuit Breaker 6–7 – Circuit Breaker Operating Mechanism 8–9 – Combined Disconnector and Earthing Switch 10–11 –. try customers to improve their performance while lowering environmental impact. The ABB Group distribution grids, power plants and industries while enhancing eco-efficie d switchgear) technology with more than 25,000 bays installed around the world. In 2009, ABB commis-sioned a GIS rated to handle. ABB Library is a web tool for searching for documents related to ABB products and services. led bays in almost 2500 substations in over 70 countries demonstrate their value every day. This extensive substation operational experience under a wide variety of conditions and requ rements forms the basis for the development and produ ured and pre-tested compo-nents, transport, assembly and. ABB switchgear systems offer maximum flexibility Than we draw on experience to meet the needs of tomorrow ABB's SF 6 gas-insulated switchgear technology has been proving its worth, day in and day out, for years. ABB's Power Technologies division offers electric, gas.