Salient Features Conforms to IS : 13947 Part 1 & 3 / IEC : 60947 Part - 1 & 3. Electrolytic copper, silver plated contacts for long contact life. Side handle operation. Enclosures made of CRCA sheet steel duty preterated and powder coated Knock-outs provided at the top, bottom and rear side Door interlocking facility available. Maximum ground Clearance. Quick make and break operating mechanism. Range 16A to 320A