This QO3100 circuit breaker from Square D is a high-quality electrical equipment that is perfect for any business or industrial application. With a maximum amperage of 100 A and 3 poles, it is designed to provide reliable and safe circuit protection. The circuit breaker has a D plug type and comes with one throw, two positions, and three poles. It is compatible with a variety of electrical systems and is easy to install and use. Whether you're looking to upgrade your circuit or seeking a replacement for your old circuit breaker, this QO3100 is a great choice.