ATC Diversified Electronics

ATC Diversified Electronics, a division of Marsh Bellofram, has been providing some of the most reliable AC current monitors, motor and pump protection devices, isolated switches, and alternating relay products for over half a century. As a leader in the field of solid-state control products, the division has made significant contributions to the industry, including the introduction of the first-phase monitor relay.

This pioneering product was designed to protect three-phase equipment from harmful conditions like phase loss (also known as single phasing), undervoltage (commonly referred to as brown-outs), and phase reversal (improper sequence). By doing so, ATC Diversified Electronics has helped to enhance the longevity and performance of such equipment, thereby solidifying its position as a trusted and innovative leader within the industry.