Plugs 4 mm system 4 mm system Product description Laminated, shatter-proof plug with caged spring and tapering sleeve providing protection against kinking. Soldered connections up to 1.5mm2, cable diameters up to 4.2 mm. Nickel-plated brass contact, nickel-plated copper beryllium contact spring. Multiple-spring wire plug, shatter-proof, flexible insulated sleeve with transverse hole. The tapering sleeve end also serves as kinking protection for the lead. Screw connection up to maximum cable cross-section of 1.5 mm2. Nickel-plated brass contact material. LAS 30 schwarz/black 972 518-100 4 mm safety system black BUELA 20 K rot/red 930 726-101 4 mm System red red color, order no. 972 518-101 black color, order no. 930 blue color, order no. 930 yellow color, order no. 930 green color, order no. 930 726-100; 726-102; 726-103; 726-104 Drawing o 11 o 11 o 4.2 o4 o4 Technical data 4 mm with laminated spring pin (spring-loaded) solder DC 60 V 32 A 3 mOhm 4 mm pin (spring-loaded) screw DC 60 V 16 A 3 mOhm copper beryllium nickel-plated PVC-P brass nickel-plated PVC-P -25 C to +70 C -25 C to +70 C 94 V-2 94 V-2 Material Environmental conditions Inflammability class 68 60.5 4 60 40 40 o 4.2