What is the difference between 2P and 1P+N of circuit breaker?

Time:2021-9-18 Category:Faqs

P represents the number of poles, N represents the zero line, 2P represents that both poles of the miniature circuit breaker have thermal and magnetic protection functions, and the width is 36mm;
And 1P+N, only the hot wire thermal magnetic protection function, the N pole has no thermal magnetic protection function, but it will be disconnected from the live wire at the same time, the width is 18mm;
Therefore, 1P+N is more economical than 2P, and it also has higher safety. It is suitable for applications with small current such as lighting circuits.

Popular Products

  • FU9000S Solar pump inverter

    USFULL FU9000S series solar pump inverter is newly developed high performance and high efficiency inverter, specially designed for AC pump in solar pumping system.

    Learn More
  • FU9000P solar water pump inverter

    USFULL water proof inverter is widely used indoors and outdoors. The protection grade is IP65, waterproof and dustproof.

    Learn More

Contact Us

USFULL Solar modules have been shipped to more than 50 countries. Since 2005 USFULLSolar has been listed as a global Tier 1 module supplier by Bloomberg New Energy Finance (BNEF)

24-hour service phone:+8613706770280