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JascoPro Series In-Wall Add-on Switch

SKU: JA59378

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Control Wired Light Fixtures From Multiple Switches

Create a multi-way lighting control setup within your home or business to control your smart lighting with the JascoPro Series In-Wall Add-on Switch. This add-on rocker switch shares control of the same wired load as a connected primary JascoPro Series in-wall switch or dimmer to create a multi-way lighting control configuration. If the connected JascoPro Series primary switch is a part of a smart home automation network, the In-Wall Add-on Switch remains capable of controlling the wired load. The In-Wall Add-On Switch cannot function as a standalone switch and must be included into or create a multi-way wiring configuration. The Switch can be included into multi-way wiring configurations up to 6-way control, with up to 4 In-Wall Add-on Switches being paired with a single JascoPro Series switch. If multiple In-Wall Add-on Switches are a part of a single multi-way configuration, the Add-On Switches must be installed no more than 75ft away from each other, no more than 200ft away from the primary switch, and the entire configuration must not exceed 300ft from one end to the other.

  • Add-on rocker switch provides additional local On/Off control of a wired load when paired with a primary JascoPro Series switch
  • Supports 2, 3, 4, 5, or 6-way wiring configurations
  • Compatible with JascoPro Series Z-Wave Plus, Zigbee, and Wi-Fi in-wall devices when paired with a similarly compatible primary switch
  • Each Add-On Switch must be installed within 200ft of the primary switch
  • For 3, 4, 5, or 6-way configurations, an Add-On switch must be within 75ft of each directly wired Add-On switch
  • Total multi-way wiring interconnection must fit not exceed 300ft
  • Uses a standard rocker wallplate, sold separately
  • Interchangeable rocker switch – white and light almond paddles included

The JascoPro Series In-Wall Add-on Switch is designed with QuickFit and SimpleWire features:

  • QuickFit: Provides a housing that's smaller by 20% with no break-off tabs to remove, which is ideal for older-style switch boxes, multi-gang configurations, or any other application with limited space.
  • SimpleWire: Auto-detects line/load terminals, making installation easier and quicker by detecting line and load wires and configuring the dimmer accordingly. It also features an offset dual ground terminal to avoid switch box mounting screws.

Installation Details

The switch requires standard screw terminal installation with wiring connections for Neutral, Ground, and Traveler. The switch is not a stand-alone device and must be used in a multi-pole application with a JascoPro Series primary switch.


  • JascoPro Series In-Wall Add-on Switch, White
  • Light Almond Paddles
  • Installation Guide


  • Single-gang wallplate sold separately. For indoor use only.
  • The add-on switch is not wireless enabled and must be used exclusively with a JascoPro Series switches.
  • It is not designed for stand-alone use to control an electrical load. It does not have wireless functionality and does not act as a repeater in your wireless control network.

Jasco: Leader And Innovator In Electronics

Established in 1975, Jasco Products is a leader in the design and development of home automation products and wireless accessories. Jasco develops consumer electronic accessories, computer accessories, home electrical products, and personal security and surveillance products. The company is also an active member of the Consumer Electronics Association (CEA).


  • Manufacturer Part #: 59378
  • UPC: 030878593786
  • Size: 1-Gang
  • Power: 120-277VAC, 60 Hz
  • Environmental Conditions: For indoor use only
  • Operating Temperature Range: 32 to 104° F (0 to 40° C)
  • Maximum Traveler Wire Distance: 300ft., interconnected between 4 Add-On switches; No more than 75ft between each switch
  • Maximum Traveler Wire Distance Between Primary and (1) Add-On Switch: 200ft
  • Dimensions: 4.13 H x 1.75 W x 1.13 inches D (104.9 x 44.5 x 28.7 mm)
  • Approvals: UL Certified
  • Warranty: 5 Year