84873029

84873029 is a phase sequence, phase failure DIN mount relay. The relay monitors its own supply voltage. The relay controls and correct sequencing of the three phases, total failure of one of the three phases. When the phase sequence and voltages are correct (<gt/> 183VAC), the output relay (s) are closed and the yellow LED is lit. In the event of a phase sequence or total phase failure fault (detected when one of the voltages drops below 100 V), the relay opens instantly and its LED is extinguished.

• Control of 3-phase networks : phase sequence, total phase failure
• Multi-voltage from 3 x 208 to 3 x 480VAC, controls its own supply voltage
• True RMS measurement, LED status indication
• AC supply voltage frequency from 50Hz to 60Hz ±10 %
• Immunity from micro power cuts is 60ms
• IEC/EN 50178 standard
• 130ms maximum alarm on delay time