PowerPacT M, P, and R-Frame circuit breakers offer a whole range of field installable accessories, allowing modifying the circuit breaker at any time in the design and build cycle. This external sensor is for source ground return (SGR) or modified differential ground fault (MDGF) applications. The sensor can be used with Micrologic 6.0A, 6.0P, or 6.0H trip units. This sensor is rated for 300A to 800A. This product complies with UL and CSA standards.