ATC - Diversified Electronics

For over half a century, ATC Diversified Electronics, a subsidiary of Marsh Bellofram, has provided some of the industry's most reliable AC current monitors, motor and pump protection systems, isolated switches, and alternating relay products. As a leader in solid-state control products, the division pioneered the first-phase monitor relay, designed to safeguard three-phase equipment from adverse conditions such as phase loss (single phasing), undervoltage (brownouts), and phase reversal (incorrect sequence).