Product Announcement from Time Mark Corporation


Model 257 - 3-Phase Monitor www.Time-Mark.com-Image

DESCRIPTION

The Model 257 continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 257 monitor will detect phase loss on a loaded motor even when regenerated voltage is present.

This device consists of a solid-state voltage and phase-angle sensing circuit, driving an electro-mechanical relay. When 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).

SPECIFICATIONS

Please see link to website for specifications.

 
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