Dimension is important when selecting a micro switch. Switch size is directly related to its characteristics including current range, travel, and operating force. For example, one the smallest micro switches available on the market measures 0.50 inch x 0.236 inch x 0.197 inch (LxWx). While this tiny switch is ideal for use in compact circuit breakers to detect the state of a circuit, it typically can only switch 0.1 to 3 Amre (A) of current and has a short travel.