Voltage monitoring relay in 3P

Selectable range 208-480V, adjustable time delay 0.3-30s, 2 outputs

 

Description

 

• The relay is designed to monitor undervoltage (HRN3-80), phase loss, sequence and asymmetry in 3-phase network.
• Power supply from the monitored circuit.
• HRN3-80: Monitors the drop below the lower voltage level (Umin).
• HRN3-80: The lower level of Umin is set in % of the selected range.
• 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

Phase failure	Yes
Phase sequence	Yes
Adjustable overvoltage	No
Adjustable undervoltage	Yes
Asymmetry	Yes
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 and Downloads

Document	File Type	File Size	Download
HRN3-80, HRN3-81 Series Datesheet	PDF	819 KB