VI06 IEC Inlet we have been upgrate Since May 2024.
Particularly for the crimps part,the old version it is put on surface of the connect pin,During locking the screws forcingly,it will come out and destory the plastic body 
The new version we put the crimps cross the connect pin,Even the screws are broken it will never come out when we are locking the wire strongly ,
To distinguish those two versions,The color of the screws changed from Gold(N) Silver(L) Black(E) to Gold(L) Silver(N) Green(E)