2008-04-01 - ABB has launched a low-voltage air circuit breaker for critical DC applications that integrates – for the first time – advanced functionality and external devices in a single space-saving, factory-tested unit.
By
ABB Communications
The ABB SACE Emax DC circuit breaker integrates in a single unit a broad range of advanced monitoring, protection and control functions that were previously performed by external devices. It is the only breaker of its kind on the global market.
The innovation takes DC current breakers into another dimension, eliminating the disadvantages and limitations of existing breaker alternatives. These are either integrated (but do not offer advanced functionality) or non-integrated, in which case they require separate devices like the trip unit and shunts to be installed in the switchboard.
Emax DC, on the other hand, combines in a single breaker the trip unit, current and voltage sensors and connections, as well as a comprehensive range of advanced protection, measurement, communication, automation, diagnostic and HMI (human machine interface) functions.
It is compact, saving space in the switchboard (no external devices required), and is factory tested, certified and compliant with all main electrical standards. Because of its extensive functionality and integrated components, Emax DC offers better performance characteristics than existing breakers.
Critical applications
Emax DC is designed for key power applications where continuity of power supply is critical.
Typical users include hospitals, continuous process industries, telecommunications and data processing centers, as well as electrical traction and drilling units, chemical and electrolytic processes, and naval applications like speed control and battery or fuel cell propulsion.
Launched in late 2007, Emax DC has attracted strong interest from customers in markets all over the world.
Click here to read more about Emax DC, its features, functions and design