3900 Series Metal Lever Switches Double Pole 16A 125/277Vac 3900 Series Metal Lever Switch with IP66 Protection 200000-Cycle Mechanical Life and Customizable Illumination for Industrial Applications Product Parameters Parameter Specification Product Name 3900 Series Metal Lever Switches Mounting Hole Ø15±0.16mm Material Options Stainless steel/Brass clad nickel/Alumina/Custom Contact Resistance ≤50mΩ Insulation Resistance ≥1000MΩ Dielectric Strength Contact-Panel ≥2000V