R13-566A1-01 is a push-button switch manufactured by SCI. It is a single pole, single throw (SPST) type switch, with a rating of 3A @ 250VAC, or 6A @ 125VAC. It has a quick-connect, snap-in type of mounting and can be connected using two solder terminals. It has an operating temperature range from -10°C to 75°C. The actual switch has two button, one in red and one in black, mounted on a 3.50"/89 mm panel. The buttons are 5/8"/16 mm in size, and the body of the switch is 1.96"/49.8 mm in length, 1.18"/29.9 mm in width and 1.22"/31 mm in depth.