NL4MMX 4 pole lockable coupler. Links two NL2/4FC`s together for cable extension. Can be permanently attached to NL2/4FC. TECHNICAL DATA Electrical Rated current/contact: 15 A rms continous Dielectric strength: 4kV peak Rated voltage: 250 V ac Contact resistance: = 3 m (= 10 m for NL4MD-H) after 5000 insertion-withdrawal operations Insulation resistance - initial: > 2 G - after damp heat test: > 1 G Inrush/outrush current capability (12 V source): 300/30 A/200 ms Creepage distance: according to IEC 664-1 Materials Housing: PA 6,6 30% GR Temperature range: -30ｰC to +80ｰC Flammability: UL94HB   Speakonｮ Lockable Loudspeaker Connector / Adapter