19-mm Keylock Switches Support High-Security Applications

Featuring vertically rotating switching mechanisms and self-cleaning sliding contacts, the CKL Series of high security keylock switches will enjoy a long operating life, smooth operation and guaranteed circuit contact. The interior construction includes a seal, further protecting the contact area. The panel-mount switches have 19-mm-diameter bushings for standard-size panel mounting and are constructed of a rugged, die-cast zinc alloy with chrome plating to prevent unauthorized or accidental actuation. CKL Series devices are rated at 3 A at 250 V ac and are available in a single pole with the two-position models featuring a 90° angle of throw and the three-position model with a 45° angle of throw. A high dielectric strength of 1500 V between contacts and case is guaranteed. Circuit options are maintained with a choice of ON-ON or ON-OFF-ON and key removal options are available in one or two positions, depending on circuit selection. ON-OFF-ON models with tubular keys have push-and-lock mechanisms, allowing the contactor to drop and slide over the stationary contacts. The switches include double-flatted bushings that sit securely in the panel. Their operating temperature range is -25°C to 70°C and can withstand humidity of 90 to 95% for 96 hours at 40°C. The terminals are epoxy-sealed to lock out flux and other contaminants. NKK SWITCHES, Scottsdale, AZ. (480) 991-0942.