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AC UNDERCURRENT CU Series

Discontinued

AC UNDERCURRENT CU Series

The CU Series is used to detect an undercurrent condition. The drop-out current setting is user-adjustable within one of three ranges as shown in the Product Selection Table below. An external current transformer can be used to extend the range beyond 10 amperes.

The pick-up current setting is fixed at +5% of the selected drop-out setting. The relay will energize when the monitored AC current is above the pick-up setting. It will de-en-ergize when the monitored AC current is below the drop-out setting for a period longer than the adjustable time delay (t) of 0.1-10 seconds. This delay prevents nuisance tripping caused by momentary line dips. The relay will energize when the current rises 5% above the drop-out setting.

 

Features
  • Monitors AC currents for undercurrent conditions
  • Three separate current moni- toring ranges covering 0.1 - 10 amperes
  • External CT can be used to extend ranges
  • Adjustable Drop-out Setting with Fixed Pick-up Setting
  • Adjustable time delay of 0.1-10 seconds on drop-out
  • LED indicates output relay status
  • Choice of compact 8 Pin SPDT or 11 Pin DPDT plug-in case
  • 10A output contacts

 

Downloads

Document File Type File Size Download
CU Series Datasheet PDF 165 KB
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