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05-08
Low & Medium Security Keylocks Series SK
General Specifications
Electrical Capacity (Resistive Load)
Power Level (code W): 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 lb
•in) 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;
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: –25°C through +70°C (–13°F through +158°F)
Humidity: 90 ~ 95% humidity for 96 hours @ 40°C (104°F)
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
Shock: 50G (490m/s
2
) acceleration (tested in 6 right angled directions, with 5 shocks in each direction)
Installation
Mounting Torque: 1.5Nm (13.28 lb
•in) maximum
Soldering Time & Temperature: Manual Soldering: See Profile A in Supplement section.
Standards & Certifications
UL Recognized: All low security models recognized at 3A @ 125V AC or 1A @ 250V AC
& all medium security models recognized at 3A @ 125V AC; UL File No. WOYR2.E44145;
add “/U” to end of part number to order UL mark on switch.
C-UL Recognized: All low security models recognized at 3A @ 125V AC or 1A @ 250V AC
& all medium security models recognized at 3A @ 125V AC; C-UL File No. WOYR8.E44145;
add “/C-UL” to end of part number to order C-UL mark on switch.
CSA Certied: All low security models certified at 3A @ 125V AC or
1A @ 250V AC; CSA File No. 023535-0-000;
add “/C” to end of part number to order CSA mark on switch.
