ATC Diversified ARD-120-AAA - Duplexor Alternating Relay - 120 ACV, SPDT w/Sequence Lock Option

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The ATC Diversified ARD-120-AAA is an 8-pin plug-in duplexor featuring sequence on simultaneous off (SOSO) 3 input function. The duplexor detects the float switch inputs and determines outputs to turn on with line voltage. As the lag and lead switches open the load remains energized. When all switches open both loads de-energize simultaneously and the lead load alternates. The ARD-120-AAA has a 3 position switch which provides the option to lock it into normal duplexing action, 1-2 sequence or 2-1 sequence. Specifications include 120 VAC control voltage and SPDT two line voltage outputs with a contact rating of 10A 1/3hp at 120 VAC (combined output). The ARD-120-AAA is UL recognized cURus.


  • Sequence On Simultaneous Off (SOSO)
  • 120 VAC Control Voltage
  • LED indicators shows output position
  • 8-pin plug-in termination
  • UL Recognized cURus
More Information
Features Sequence On Simultaneous Off
Manufacturer ATC - Diversified
Power 120V AC
Type Alternating Relays & Controllers
Additional Skus ARD120AAA
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