SS 428 91 01, EN 61230
Line clamp JK 21 is for connection to the railway’s catenary line.
The conducting parts of the clamp are made of nickel-plated copper aloy 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 to the clamp with a cable lug and M12 bolted joint.