4-pole narrow couplers without strain-relief

For flexible, stranded and solid wires. Wire cross-section: 0,75-4,0 mm². Weight: plug 12,2 g, socket 12,7 g. Coupler width: 39 mm. Other dimensions identical to respective versions with locking latches on the sides of the coupler. The separate locking device NK3F.W is delivered with plug. Pole markings in parentheses.