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ATC ARA-120-ADA Plug-in Duplexor Alternating Relay, 120 VAC or VAC/DC, DPDT

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$111.49

$ 54 .99 $54.99

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About this item

  • Control Voltage: 24, 120 VAC/DC, 208, 240 480 VAC, 50/60 Hz, 48 VDC, ±10%
  • Control Switch Current: 1 mA
  • Power Required 3 VA (Approximately)
  • Duty Cycle: Continuous
  • Life Expectancy: Mechanical: 10, 000, 000 Operations (Minimum); Electrical: 100, 000 Operations @ Rated Load


The Duplexer is used in control panels where tow loads are required to alternate to provide equal run time on the loads. The alternating action in initiated by a control switch, which is common with one side of the control voltage. The output contacts will change states each time the control switch is opened, thus alternating the two loads. The LED indicators show the position of the output relay. The ARA Series is the standard Duplexer providing automatic alternating sequence. The ARB has the automatic sequencing feature plus the option of locking it into one sequence. A three position switch permits the field selection of normal duplexing action, locking in the A-B sequence, or B-A sequence.