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Neutrik NL4MMX Speak-On Coupler Neutrik NL4MMX 4 pole lockable speak-on coupler, links two NL2FC or NL4FC together for cable extension. The Neutrik NL4MMX can be permanently attached to NL2FC or NL4FC cable connectors. Neutrik NL4MMX Specifications | Product | | Gender | male | | Electrical | | Contact resistance | ≤ 3 mΩ (after lifetime) | | Dielectric strength | 4 kVdc (peak) | | Insulation resistance | > 1 GΩ (after dampheat) | | Rated current per contact | 15 A rms continuous | | Rated current per contact | 30 A audiosignal, duty cycle 50 % | | Rated voltage | 250 V (Insulation) | | Attention | speakON is NOT to be used as an AC mains connector! | | Mechanical | | Lifetime | > 5000 mating cycles | | Locking device | Quick Lock | | Material | | Contact plating | 4 ΅m Ag | | Contacts | Bronze (CuSn6) | | Insert | Polyamide (PA 6 30 % GR) | | Shell | Polyamide (PA 6 30 % GR) | | Environmental | | Flammability | UL 94 HB | | Solderability | Complies with IEC 68-2-20 | | Temperature range | -30 °C to +80 °C | | 
