Time Mark EX258B - 3-Phase Monitor, Auto Reset, 380VAC

3-Phase Monitor Automatic reset Nominal AC voltage: 380VAC Case color: Yellow Adjustment range: 300-400VAC Frequency: 50Hz Power consumption: 3.0W Detects phase loss, low voltage, phase reversal ABS plastic cover The Time Mark EX258B 3-Phase Monitor continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 258 monitor will detect phase loss on a loaded motor even when regenerated voltage is present. The EX258B model offers automatic reset, 380VAC nominal AC voltage, yellow case color, 300-400VAC adjustment range, 50Hz frequency, and 3.0W power consumption.This device consists of a solid-state voltage and phase-angle sensing circuit, driving an electromechanical relay. When the correct voltage and phase rotation are applied, the internal relay will energize. A fault condition will de-energize the relay. When the fault is corrected, the monitor will automatically reset (a manual reset version is also available).The Model 258 series d