DC DZ47-63 MCB

· Rated current:6,10,16,20,25,32,40,50,63A;
· 1/2/3/4poles optional;
· Breaking Capacity:4/6KA;

      A circuit breaker is a switching device that can turn on, carry and shut off current under normal circuit conditions and turn on, carry and shut off current under abnormal circuit conditions for a specified period of time. DC circuit breakers are suitable for overload and short-circuit repair of lines, lighting and power equipment in circuits with additional currents of AC 50Hz or 60Hz and additional voltages of 230/400V to 63A or less, and also for infrequent on/off switching of lines and equipment under normal conditions.

DC miniature circuit breakers are used in high-capacity, high-voltage power systems, such as power plants and substations. DC systems provide reliable power for relay maintenance, operation control, signal sound and accident lighting. As one of the important components of the DC system, its stable and reliable operation will directly ensure the DC safety power supply of the entire power system.

With the booming development of information industry, DC power supply industry such as communication power supply is developing rapidly, with base stations and data all over the earth. In order to ensure the high precision requirements of DC power supply, DC circuit breaker, as an important operation and maintenance component in DC power supply at all levels, plays a relatively important role in maintaining equipment and limiting the scale of accidents with its firm and selective graded cooperation.

National urban transportation systems (such as subways, trainsets, light railways and electric locomotives running on them) are powered by DC systems, and most of their DCs are powered by high-power silicon rectification equipment. Components of silicon rectifier equipment have high requirements for DC network maintenance components due to low overload capacity, and DC special circuit breakers with fast breaking are important components in rail transportation.