Ea elektro automatik ea ups 700 din rail ups 13527v dc ea elektro automatik 18175202 this uninterrupted power supply ups 135v dc 21a from ea elektro automatik has been designed for dc distributors and continues to work in case of a power failure such as in alarm units telephone systems automatic door openers production and process control systems alternatively an external lead acid battery or one or more ea bu units maintenance free gas tight lead gel batteries can be connected