The Micrologic 6.0 is an electronic tripping device used with Masterpact NT circuit breakers. The tripping device is designed to protect circuits and loads. It has adjustable long-term protection against overload, short-time delayed and instantaneous short-circuit protection. It also offers protection against earth faults. The Micrologic indicates an overload using an alarm LED. Other tripping causes are indicated by 3 additional LEDs.