Masterpact NW DC is a comprehensive range of air circuit breakers designed to protect electrical systems from damage caused by overloads, short circuits and equipment ground faults in direct current installations including photovoltaic applications. Embedding Micrologic DC control unit, it contributes to safety and energy management. The range covers ratings from 1000 to 4000 A in one unique size.
High current air circuit breakers for DC installations
Masterpact NW DC circuit breakers are equipped with Micrologic DC control units that offer built-in adjustable instantaneous protection. One unique size covers applications from 1000 to 4000 A, with breaking capacity from 25 to 100 kA, depending on the time constant L/R and on the voltage level. The range comes with a wide choice of standardized accessories. The universal design of the Masterpact circuit breaker line allows most accessories to be used across the entire line. It enables standardization of electrical switchboards by providing peace of mind in terms of choice, installation, and operation.
Masterpact NW circuit breakers contribute to reliability and continuity of service of your electrical installation thanks to:
Integrated monitoring for energy efficiency
General applications in all types of direct current electrical installations, including photovoltaic applications
Suitable in most applications for protection demanding high performance, including: