1)The MCCB complies with standard of IEC947-2, GB14048.2, GB14048. ... and short circuit and undervoltage. The MCCB complies with standard of IEC947-2, GB14048.2, GB14048.4 and ... capacity grade of MCCB: E-Economical type S-Standard type M-High breaking capacity type H-Highest ... protector on N pole that closing or opening with other threepoles.Main technical Specifications Motion characteristicThe ...