Low & Medium Security Keylocks Series SK General Specifications Electrical Capacity (Resistive Load) Power Level (silver): 3A 125V AC for low & medium security 1A 250V AC for low security Other Ratings Contact Resistance: 10 milliohms maximum Insulation Resistance: 1,000 megohms minimum 500V DC Dielectric Strength: 1,000V AC minimum between contacts for 1 minute minimum 1,500V AC minimum between contacts & case for 1 minute minimum Mechanical Life: 30,000 cycles minimum Electrical Life: 10,000 cycles minimum Nominal Operating Torque: .026Nm (.234 lbin) for low & medium security Contact Timing: Break-before-make Angle of Throw: 90 for 2-position & 45 for 3-position Materials & Finishes Key: Zinc alloy with chrome plating (matte) for low security models F brass with nickel plating (shiny) for medium security models Tumbler Barrel: Zinc alloy with chrome plating (matte) for low security models zinc alloy with chrome plating (shiny) for medium security models Housing/Bushing: Zinc alloy with chrome plating (matte) for low security models zinc alloy with chrome plating (shiny) for medium security models Base: Phenolic resin (thermoset) Movable Contactor: Silver Stationary Contacts: Silver capped copper with silver plating Terminals: Copper or brass with silver plating Environmental Data Operating Temperature Range: 25C through +70C (13F through +158F) Humidity: 90 ~ 95% humidity for 96 hours 40C (104F) Vibration: 10 ~ 55Hz with peak-to-peak amplitude of 1.5mm traversing the frequency range & returning in 1 minute 3 right angled directions for 2 hours 2 Shock: 50G (490m/s ) acceleration (tested in 6 right angled directions, with 5 shocks in each direction) Installation Mounting Torque: 1.5Nm (13.28 lbin) maximum Soldering Time & Temperature: Manual Soldering: See Profile A in Supplement section. Standards & Certifications UL: File No. E44145 - Recognized only when ordered with marking on switch. Add /U or /CUL to end of part number to order UL recognized switch. All low security models recognized at 3A 125V AC or 1A 250V AC & all medium security models recognized at 3A 125V AC CSA: File No. 023535 0 000 - Certified only when ordered with marking on switch. Add /C to end of part number to order CSA certified switch. All low security models certified at 3A 125V AC or 1A 250V AC www.nkkswitches.com F9 Supplement Accessories Indicators Touch Tilt Tactiles Slides Rotaries Keylocks Programmable Illuminated PB Pushbuttons Rockers TogglesSeries SK Low & Medium Security Keylocks Distinctive Characteristics 12mm diameter bushing for easy panel cutout preparation and high density mounting. Epoxy sealed terminals prevent entry of flux and other contaminants. Short behind panel dimension - only 1.063 (27.0mm). High dielectric strength of 1,500 volts between contacts and case. F Detent mechanism gives crisp, positive action for accurate switch setting. Dust resistant interior construction protects contacts. Actual Size F10 www.nkkswitches.com Supplement Accessories Indicators Touch Tilt Tactiles Slides Rotaries Keylocks Programmable Illuminated PB Pushbuttons Rockers Toggles