The Panasonic ERZ-V10D820 is an industrial-grade circuit breaker that is used for circuit overload protection in control panels and switchgear systems. This device features a wide range of current ratings ranging from 6 A to 800 A, making it suitable for a variety of applications including motor control, power distribution, and load switching. The device also features high breaking capacity of up to 10 kA at 400 VAC and has low power loss at all current ratings. Additionally, the device is UL certified, making it suitable for installations in hazardous environments.