Stardand :
  IEC60947-1  GB14048.1-2006 
  IEC60947-2   GB14048.2-2008 
  IEC60947-4   GB14048.4-2003 
  IEC60947-5-1 GB14048.5-2008 
Main feautures:
1. GM8-TM thermomagnetic MCCB is with overload long-time protection and instantaneous short circuit protection. No electric arcing.

2. GM8-E Electronic type MCCB
    over-current protection; Pre-alarm indication;  Overload indication; Reliable Back-up protection; No electric arcing.

3. GM8 -Zn &GM8-Zs (intelligent control )MCCB
     over-current protection; Pre-alarm indication;  Overload indication; LCD ; Reliable Back-up protection; No electric arcing.