Single-Phase

• It is used to monitor the value of alternating or direct voltage in 1-phase circuits.
• Supply voltage from monitored voltage.
• Monitors voltage exceeding the upper voltage level (Umax) and falling below the lower voltage level (Umin) – according to the selected function.
• Smooth adjustment of both voltage levels – the lower level Umin is set in % of the upper-level Umax.
• Adjustable time delay (to eliminate short-term voltage drops and spikes).
• Option to select functions with fault state memory (Latch).
• The fault state memory can be reset by the control input (R).
• Measures true root mean square value of the voltage – TRUE RMS.

Technical parameters

• Overvoltage: Yes
• Undervoltage: Yes
• Monitored range: AC 48 – 276 V
• Output contact: 1/2x CO, 16 A
• Housing: 1-MODULE
• Power supply: from monitored voltage
• Dimensions: 90 x 17.6 x 64 mm (3.5˝ x 0.7˝ x 2.5˝)

Download Datasheet

HRN-31, HRN-31/2 Datasheet