Basler ES-81U ES-81U ES-81U Underfrequency

Basler

Product Code: ES-81U ES-81U
Brand: Basler



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Description for Basler ES-81U ES-81U ES-81U Underfrequency

Basler Electric ES Series Protection Relays provide a wide range of functions with the following common specifications:Power SupplyAll units are self-powered except for the ES-37, ES-51, ES-37/51, ES-49, ES-74S, and ES-74V relays.ES Relay Model Nominal Sensing Input25, 27, 59, 32, 47, 47N, 55, 81O, 81U 120, 208, 240, 380, 415 or 480 Vac* 32, 37, 51, 55 5 A (or 1 A for 55) 74S 50 or 100 mVdc 74V 1, 10, 100, or 125 Vdc 49 10 ? Cu or 100 ? PtOutputRelay Type: SPDT (form-C)AC Rating: Make and Carry: 250 V, 5 ABreak Resistive or Inductive: 0.3 A at 250 V (L/R=0.04 max.)Applied StandardsFor all ES Series Protection Relays: IEC 60255-1 Measuring Relays and Protection Equipment-Part 1: Common requirements IEEE C37.90™-2005 Relays and Relay Systems Associated with Electric Power Apparatus IEEE C37.90.1™-2012 Surge Withstand Capability Tests for Relays and Relay Systems Associated with Electric Power Apparatus IEEE C37.90.2™-2004 Withstand Capability of Relay Systems to Radiated EMI from Transceivers IEEE C37.90.3™-2001 ESD Tests for Protective Relays For ES-74S Relay only: IEEE 421.3™-1997 For High-Potential Test Requirements for Excitation Systems for Synchronous Machines (for field voltages up to 600 Vdc and bridge input voltages up to 1,300 Vac) 

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