SS 428 91 01, EN 61230
Line clamp JFS 21 is for connection to contact fittings (hook) JKR and JKS.
The conducting parts of the clamp are made of nickel-plated electrolytic copper and steel components are made of stainless steel. The clamp has stainless steel spring washers to ensure constant contact pressure. The earthing cable is connected by compression to the clamp.