Mueller Electric Company Monitor - Relay Output SLM-440-ASE

The SLM-440-ASE is a microprocessor-based three-phase monitor designed to protect equipment by detecting under voltage, over voltage, phase loss, phase reversal, phase unbalance, and frequency shift. It features LED indicators for fault conditions, automatic or manual reset with last fault memory, and screw terminal connections. The device operates on a nominal phase-to-phase voltage of 440 VAC with a maximum voltage set point of 540 VAC. It has a DPDT relay output rated at 3 A resistive at 600 VAC and requires 7 VA typical power. Mounted in a Lexan enclosure, it operates from 32°F to 131°F (0°C to 55°C) and is UL Listed under E55826.