For flexible, stranded and solid wires. Wire cross-section: 0,75-4,0 mm². Strain-relief for cables with outer diameter of 5,5-11,5 mm. Weight: plug 11,4 g, socket 11,7 g. Coupler width: 28 mm. Other dimensions identical to respective versions with locking latches on the sides of the couplers. Separate locking device NK2F.W is delivered with the plug. Pole markings in parentheses.