UL Rated 3900 Series Industrial Power Equipment High Current SPDT 10A 250Vac Toggle Switches 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 Contact-Contact 1500V Mechanical Life 200,000 cycles Electrical Life 50,000 cycles Operating Temperature -25°C