ATC Diversified Electronics UOA-240-AFA Voltage Monitor

ATC Diversified Electronics UOA-240-AFA is a single-phase undervoltage monitor/relay designed to protect equipment by sounding or switching a control output when the voltage on a 240 VAC supply falls outside a defined range. This panel-mounted device uses an 8-terminal layout and carries a 5 A contact rating at 240 VAC, enabling reliable control in industrial circuits and safe energization of related loads within motor and equipment protection schemes. The unit operates from a 240 VAC supply and belongs to ATC’s UOA family of undervoltage monitoring relays, engineered for dependable single‑phase operation in demanding environments. Typical applications include protecting motors, fans, pumps, conveyors, and HVAC equipment where maintaining voltage above a minimum threshold is critical to prevent nuisance tripping, equipment damage, or unplanned downtime. The UOA-240-AFA provides straightforward integration into control panels and retrofit projects, delivering clear, dependable undervoltage signaling without requiring complex wiring or additional power supplies.