Breaker-Mount Phase Coupler. Fits two breaker positions in a standard breaker-panel (Murray/Crouse Hinds - MP, Siemens - QP, Cutler Hammer/Eaton - BR or CL, GE - THQL or THQP, and SquareD - HOM). Boosts powerline signals by providing a bridge between the two, 120 VAC electrical phases (A and B) in a split-phase, 240 VAC home. Without a phase coupler, signals travel out to the street transformer on one phase and comeback in the home on the other phase; usually at a lower (attenuated) level. In homes up to 2000 Sq. Ft. and within 100 feet of the transformer, phase coupling may not be needed. As the size of the home and distance from the transformer increases, phase coupling becomes more important. A phase coupler is recommended in every main breaker panel and sub-panel to ensure maximum signal strength. The wire-in phase coupler is good for UPB, X10 and other higher frequency powerline signals. Simply Automated is an industry leader in home automation and lighting control. We provide an optimum solution for your home lighting automation needs -- most complete product line in the industry, powerful UPB powerline technology and low price. Simply Automated products utilize Universal Powerline Bus (UPB) technology. Our products work over the pre-existing electrical wiring in your home. No new wires needed! Powerful expansion capability up to 250 devices using UPStart software and your PC and Computer Interface Module (PN: UMC-USB). Add additional single rocker dimmers, deluxe dimmers with different faceplates (up to 8 buttons), lamp or appliance modules, tabletop pedestal with 8 buttons, wall receptacle, fixture relay, fixture dimmer or scheduler-timer. Lighting control for your entire home. To ensure a proper installation in your home: Your home should be no more than 2500 square feet and have only one breaker panel. A phase coupler is required in some home installations. Not intended for use in multi-dwelling (condo, apartment, duplex) units. Product Description Are Universal Powerline Bus (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 Pre-Configured Dimmer Starter Kit (PN: DKIT-01); Includes 2 standard single rocker dimmers and 1 deluxe dimmer controller base with single rocker and 4-button faceplate Utilizes SimplySmart technology to make installation a breeze; No computer programming required! 1-2-3-Done; Provides the convenience of one touch control to turn on multiple switches to create different scenes in your home Add 2 additional dimmers (PN: US1W9, US1W10), Lamp Module Starter Kit (PN: DKIT-02), 2 lamp modules (PN: UML7, UML8) or tabletop pedestal (PN: US2TP11); Note: only one of each pre-configured PN can be ordered per home installation Powerful custom expansion capability up to 250 devices; Add single rocker dimmer or deluxe dimmer (faceplate options up to 8 buttons), lamp/appliance modules, tabletop pedestal, wall receptacle, fixture modules or scheduler-timer Dimmers require both a neutral (white) and hot (black) connection; Do not use on a 3-way circuit; Your home should be no more than 2500 square feet and have only one breaker panel; A phase coupler is required in some home installations