The SQUARE D EGB34015 is a 15 Amp, 480/277V, 3 Pole Circuit Breaker with a bolt-on mounting style. It has a black color and is suitable for interior use in commercial, industrial, and branch circuit applications. The breaker features a thermal interruption type and on/off operation method, making it ideal for electrical protection and control in a variety of settings. Made of ABS/plastic material, this Square D circuit breaker is designed for reliability and efficiency in the electrical equipment and supplies industry.