1. Standard
CCC
EMC certification
1)international standard
IEC 60947-1(1998)
IEC 60947-3(1999)
IEC 60947-6(1999)
2)national standard
GB/T14048.1-2002
GB14048.3-2002
GB14048.11-2002

3) It adopt reliable double complex contact, horizontal and vertical type frame work, Micro motor pre-saving and Micro electronic control trchnical, basically, it have come to 'Zero'are.
4) It adopt reliable machine interlock and electric interlock, the executive union parts adopt independency overload disconnect switch, it makes more reliable and safety.
5) Adopt'zero' technique, it can force to set zero under emergency situation, meet the requirement of fire protection linkage.
6) Operate overload disconnect switch change over adopt singleness electromotor drive, switch over smooth and reliable, no noise, little wallop.
7) Perform overload disconnect switch with mechanism interlock device, it ensure the common use, standby power working reliable and not interference.
8) Distinct on and off position indecator, pad lock function etc., safe realize the diconnect between electric power and overload.
9) High securety, high automatization, high retiable, use life more than 8000times.