Honeywell LS2D4K MICRO SWITCH™ Heavy-Duty Limit Switches: HDLS Series, Stainless Steel Housing, Momentary, Top Roller Plunger, Ø 12,7 mm x 4,8 mm [0.50 in x 0.19 in] SST Roller, 1NC 1NO Single Pole Double Throw (SPDT) Snap Action, Double Break, AC 15, A600; DC 13, R300, 0