1987-1996Onye kọntaktị AC
1996-2000MCB, RCCB, RCBO, Isolation Switch
2000-2005MCCB, ACB
2005-2008Kabinet nkesa ike HV&LV, Switchboard, ngwa nwere ọgụgụ isi, Nweta ike kwụsiri ike, ụdị ngwaọrụ nchekwa eletrik na mmalite.
2008-2017Ndị na-agbaji ikike sekit dị elu, ụdị kọntaktị ọhụrụ, ngwaọrụ eletrọnịkị maka grid Smart wdg.