February 28, 2013 - Newell, West Virginia, USA - ATC Diversified Electronics, a division of the Marsh Bellofram Group of Companies, today announced the launch of the SLU-0200 phase/voltage monitoring series, designed to provide cost-effective protection against premature equipment failure or downtime caused by voltage faults or untimely outages on Wye or Delta three-phase systems. The SLU-0200 series also comes complete with “Rapid Cycle Lockout.”