The Square D 20 Amp I-Line Thermal-Magnetic Circuit Breaker is a reliable and high-quality electrical component designed for industrial and commercial applications. With a maximum amperage of 20A and a voltage rating of 480 VAC, this circuit breaker is suitable for handling heavy electrical loads. The I-Line mounting style allows for easy installation and maintenance, while the thermal interruption type ensures efficient protection against overloads and short circuits. This product from Square D is a versatile and dependable solution for electrical circuit protection in various settings.