HRN-37 | Protecting voltage relay

• It serves to control supply voltage for appliances sensitive to supply tolerance, protection of the device against under/over voltage.
• For the difference between HRN-3x and HRN-6x - see a graph of the function.
• HRN-33, HRN-63
  • monitors voltage in range AC 48 - 276V
  • it is possible to protect the level by overvoltage and undervoltage separately
• HRN-34, HRN-64
  • like HRN-33, but voltage range is DC 6 - 30V
  • monitoring of battery circuits (24V)
• HRN-35
  • like HRN-33, but independent output relays for each voltage level
  • it is possible, for example, to switch a different load than for undervoltage by the output for overvoltage
• HRN-37, HRN-67
  • monitors the voltage in range AC 24 -150V
  • it is possible to monitor the level of overvoltage and undervoltage independently
• An adjustable time delay for all types is 0 - 10s (to eliminate short voltage drops or peaks).
• the lower voltage level (Umin) is set in % of the upper level (Umax)
• 3-state indication - LEDs indicating normal state and 2 fault states.
• the device is powered from the monitored voltage (measures the level of its own power supply)
• single-phase design,1-MODULE, DIN rail mounting.

More information

• Terminals: A1 - A2
• Voltage range: AC 24-150V / 50-60Hz
• Number of contacts: 1x switch/ SPDT (AgNi / Silver Alloy)
• Operating temperature: -20°C to 55°C
• Operating position: any
• Mounting: DIN rail EN 60715
• Protection degree: IP40 from front panel, IP20 terminals
• Dimensions: 90 x 17.6 x 64mm
• Weight: 61g