Megger manufactures circuit breaker test set with digital signal processing technology. The product is available in model dda 1600. It is ideal for testing low-voltage breakers rated to 1600-ampere frame size. Circuit breaker test set with digital signal processing technology provides increased control of output current and high accuracy metering of the breaker under test. A full line of other dda test sets is available to meet all of the high-current, primary injection testing needs through 6000-ampere frame size. The unique features of circuit breaker test set with digital signal processing technology are: