This motor is used for driving,mainly equipped with low-tension automatic air-break switch DW15.It includes HDZ-12307,HDZ-20307 used on automatic air-break switch with capability 1000A-1600A,HDZ-13110,HDZ-23110 and HDZ-33110 used on automatic air-break switch with capability 2500A-4000A.This kind of product owns characteristics such as reliable motion and longer lifespan etc,which is widel applied in various domestic plants for low-tension switches.