Mueller Electric Company Monitor - Relay Output UOA-48-DLA

The UOA-48-DLA is a single-phase under voltage monitor in the UOA Series, designed to protect equipment by de-energizing an output relay when voltage drops below a preset level and automatically resetting when voltage returns to normal. It operates on DC voltage with a pickup range of 40-55 VDC and a dropout range of 38-53 VDC, featuring a 2 VDC hysteresis. The unit uses a Style A DPDT relay rated for 5 A at 240 VAC resistive load, with an operate time of approximately 50 ms and a release time of 0.5 s. It requires a maximum of 3 watts of power and operates within a temperature range of 32°F to 131°F (0°C to 55°C). The device weighs between 5 and 5.5 ounces. Adjustments are fixed (F) with locknut (L) and knob (K) options, and wiring uses RB-08 or PF083A terminals.