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> New in box basler digital frequency relay BE1-81 o/u
New in box basler digital frequency relay BE1-81 o/u
New In Box, old stock. Basler Digital Frequency Relay BE1-81 O/U. T3ED1LB7N1F
The Basler BE1-81O/U Digital Frequency Relay senses and ac voltage from a power system or generator to provide protection in the event that the frequency exceeds predetermined limits.
* Reliable solid-state digital circuitry
* Up to 4 independent frequency set points
* Over or underfrequency sensing selectable for each set point
* Convenient, precise selection of the set point frequency over the nominal range of 40 Hz to 70 Hz.
* Individually adjustable time delays and LED indications for each frequency set point.
* Optional definite time delay characteristic.
* Undervoltage inhibit prevents undesired relay operation and provides an indication of the inhibiting condition over the adjustable range of 40-120 Vac.
* Excellent timing accuracy and repeatability.
* Low sensing and supply burdens.
* Qualified to the requirements of
- IEEE C37.90.1-1989 for surge withstand capability
- IEEE C37.90.1-1989 for fast transient
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