NC3MX-HD-B Male, heavy duty version with metal boot and stainless steel shell. Black metal housing and gold contacts. TECHNICAL DATA Electrical Number of contacts: 3 Contact resistance: ≤ 3 m Insulation resistance - initial: > 2 G - after damp heat test: > 1 G Dielectric strength: 1500 V dc Rated current: 16 A AWG: 2.5 mmｲ/14 AWG Capacitance between contacts: ≤ 4pF Mechanical Lifetime: >1000 cycles Insertion / withdrawal force: ≤ 20 N Cable O.D. range: 3.5 mm - 8.0 mm Materials Shell: ZnAl4Cu1, gal Ni or black Cr over Cu plating Shell (male): stainless steel and zinc diecasting combined. Insert: PA 6.6 30% GR (glass reinforced) Contacts: - female: CuSn6 - male: CuZn39Pb3 Contact surface: gal 2 ｵm Ag or gal 0.2 ｵm Au hard alloy over 2 ｵm Ni Latch lock (female): St3K32 Strain-relief clamp: POM Antikink bushing: PUR Sealing jacket: EPDM Environmental Temperature range: -30ｰ C to + 80ｰ C Flammability: UL 94HB Solderability: complies with IEC 68-2-20 Protection class: IP 65 Compatibility: IEC 61076-2-103 standard   XLR Cable Connectors / X-HD Series `Heavy duty` 3-pole-cable connectors for outdoor use. All metal design, dust and water protected according to IP 65. Gold contacts standard.