The Square D XO120 is a 1-pole, 20 amp, 120V circuit breaker designed for electrical equipment and supplies in a business or industrial setting. With a single pole single throw (SPST) contact configuration, this black-colored circuit breaker is made of ABS plastic material. It has a maximum amperage of 20A and is ideal for use with a voltage of 120V. The Square D XO120 model is a reliable and efficient component for ensuring electrical safety and functionality in a variety of industrial applications.