UPB Phase Coupler
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Leviton Security & Automation HL391 UPB Phase Coupler

Phase Coupler Bridges Electrical Power Phases For Increased UPB Reliability
  • Phase coupler gets UPB signals from one electrical phase to the other
  • Installs into junction box near main breaker panel
  • Increases signal strength in larger homes
  • Formerly an HAI product

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  • What's Included
  • Are UPB-controlled lights or appliances in one area of your house having trouble receiving signals from UPB transmitters in another area of the house? Because most homes have 2-phase 220V power that splits into two separate 110V legs, sometimes UPB signals have a hard time making the transition from one leg to the other. But connect the Leviton Security & Automation UPB Phase Coupler to your main circuit breaker panel, and it will bridge UPB signals between the two power lines in your home easily, allowing virtually all of your UPB receivers to respond to UPB signals.

    This capacitor is useful for coupling UPB signals across two 120V AC power circuits in a split-phase residential installation. The device can be installed in a junction box near your main circuit breaker panel. For a signal coupler with built-in surge suppression, use the Wire-in UPB Phase Coupler instead.

    In 2012, HAI was acquired by Leviton, with the transitional name, “HAI by Leviton” applied. Mid 2013, “Leviton Security & Automation” was formalized.

    The previous HAI part number for this product was 39A00-1.
  • Specifications

    Product No.:HL391 (Formerly HAI Part # 39A00-1)
    UPC:872257002232
    Dimensions:4 1/16" x 1 13/16"x 1 1/2"
    Approvals:UL listed
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    • Phase coupler
    • Instructions
    • Wire nuts
    • Mounting screws
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