For more than 50 years, ATC Diversified Electronics has been a structural division of the Marsh Bellofram Corporation, which offers one of the most reliable protection technologies for industrial motors, as well as AC relays.

Being a recognized leader in the field of electronic control products, the company became the first creator of the phase indicator relay, designed to protect 3-phase equipment from such adverse conditions as phase loss (operation with a single phase break), increased load and phase rollover (inappropriate sequence).

The company's products have received worldwide recognition and enjoy authority in the radio electronics market.