EC01   Italian Type Earth Clamp    
200A 300A 400A 500A
EC02   American Type Earth Clamp  
200A 300A
EC03   Japaness Type Earth Clamp
300A 500A  
EC04   Holland Type Earth Clamp
200A 150A 300A 400A 500A 500A(1) 500(2)
EC05   American Type Earth Clamp
200A
EC06  American Type Earth Clamp
150A 300A 300A(1) 500A 500A(1)  500A(11) 400(A)
EC07  Japanese Type Earth Clamp
300A  500A
EC08  American Type Earth Clamp
300A 500A
EC09   American Type Earth Clamp
400A  400A(1)
EC10  British Type Earth Elamp
600A(1)   600A(11)