Mueller Electric Company Monitor - Relay Output UOA-24-ALA

The UOA Series is a single-phase under voltage monitor with relay output, designed to protect equipment by de-energizing the output when line voltage falls below a preset drop-out level and automatically resetting when voltage recovers above the pick-up level. The UOA-24-ALA variant operates on 24 VAC, with a pick-up voltage range of 21-29 VAC and a drop-out voltage range of 19-27 VAC, offering 2 VAC hysteresis. It features a STYLE "A" DPDT relay rated at 5 A at 240 VAC resistive, with operate time of approximately 50 ms and release time of 0.5 s. The unit requires a maximum of 5 VA power and operates within a temperature range of 32°F to 131°F (0°C to 55°C). It weighs between 5 and 5.5 ounces.