Description

HRN3-81 | Voltage monitoring relays in 3P with fixed levels

  • The relay is designed to monitor phase loss, sequence and asymmetry in 3-phase network.
  • Power supply from the monitored circuit.
  • Wide range of monitored voltage 208 – 480 V.
  • Adjustable time delay (to eliminate short-term voltage drops).
  • Measures true root mean square value of the voltage - TRUE RMS.
  • Adjustable level of asymmetry with the option to turn it off.

Technical parameters

  • Monitored range: AC 3× 208 – 480 V
  • Output contact: 2x CO, 16 A
  • Housing: 1-MODULE
  • Power supply: monitored voltage
  • Dimensions: 90 x 52 x 66 mm (3.5˝ x 0.7˝ x 2.5˝)

Documents

Parameters

Guarded values Phase failure, Phases sequence, Phases asymmetry
Power voltage from monitored voltage
Number of phases 3
Design 1-MODULE
Monitored voltage range 3 x 208 - 480 V AC

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