UL; CSA; ENEC. The current rating and life expectancy figures quoted are nominal, please see datasheet for further ratings. Marquardt Miniature Snap Action Switches - 1005 Series. Marquardt 1005 Series miniature snap action single pole switches. The 1005 Series snap action switches are designed to DIN41635A with a contact resistance of ;100m and an insulation resistance of >100M . The Marquardt 1005 Series is available with various actuators and terminations. Contact distance ;3mm (apart from stock number ; 741-0978 741-0978 which has a contact distance greater than 3mm) Bounce time ;10ms UL 94 V-2 flammability