Honeywell LSF1A MICRO SWITCH™ Heavy-Duty Limit Switches: HDLS Series, Epoxy-Coated Zinc Housing, Momentary, Side Roller Plunger, Ø 12,7 mm x 4,8 mm [0.50 in x 0.19 in] Steel Roller, 1NC 1NO Single Pole Double Throw (SPDT) Snap Action, Double Break, AC 15, A600; DC 13, R3