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Elko HRN-55 Three Phase Voltage Measuring Relay 3 x 400 V / 50 Hz

Features

  • Relay monitors phase sequence and failure, exceeding of monitored voltage in 3 phase main
  • HRN-55 - supply from all phases, which means that function of relay is applicable also if one phase fails
  • HRN-55N - supply L1-N, it means that relay also monitors break of neutral point
  • Fixed delay T1 (500ms) and adjustable delay T2 (0.1-10s)
  • Faulty state is indicated by LED and output contact of relay is OFF.
  • Output contact: 1x changeover / SPDT 16 A / 250 V AC1
  • 1-MODULE, DIN rail mounting

Details

Relay in 3-phase main monitors correct phase sequence and failure of any phase. Green LED is permanently ON and indicates presence of power supply voltage. In case of phase failure or exceeding voltage level red LED fl ashes and relay breaks. When changing to faulty state, time delay applies. Time delay setting is set by a potentiometer on front panel of the device. In case of incorrect phase sequence red LED shines permanently and relay is open. In case supply voltage falls below 60% Un (OFF lower level) relay immediately opens with no delay and faulty state is indicated by red LED.

HRN-55: thanks to supply form all phases, this relay is able to stay operational also if one phase is out.
HRN-55N -supply L1-N, means that relay monitor also failure in neutral wire.

Replacement for HRN-51 and HRN -51N
Fixed delay T1 (500ms) and adjustable delay T2 (0.5-10s)
Faulty state is indicated by LED and output contact of relay is OFF.
Output contact: 1x changeover 16 A / 250 V AC1
1-MODULE, DIN rail mounting
Product Name / Options Price (ex VAT)
HRN-55 Call for Prices