Features:
1) Applicable to a line of AC 50Hz/60Hz, rated voltage230V for 2-pole,
400V for 4-pole and rated current up to 63A
2) It can ensure the safety of persons and electric appliances
3) It can also be used for infrequent line conversion or/and infrequent
motor start
4) Applicable to industrial and mining enterprises, commercial districts,
high-rise buildings and dwelling houses