How long does the circuit breaker last?
Functional switchgear is the use of not only has a switching function, but also has other special features of the switch (such as circuit breakers, speed switches, delay switches, etc.) control of electrical appliances
functional switching appliances can only control the current without having to disconnect the load;
functional switching appliances should be able to be suitable for the most arduous work system may have;
the introduction of intelligent circuit breaker long delay trip is based on the formula to simulate the mechanical circuit breaker trip curve, each company calculation method is different, and is the company's core secrets.
Circuit switch is the number of letters in front of the number p, you say 2p, is the two pole switch.
