Leviton CSB3 White 3-Way Commercial Grade Toggle Light Switch 15/20A, 120/277V With back-wired and side-wired installation options, the Leviton 20 Amp 3-Way Commercial Toggle Switch is recommended for use by electricians and contractors in heavily-used areas of commercial buildings, schools, offices and homes. The UL-listed toggle switch is designed for use with a second 3-way switch (not included) in a 3-way circuit to provide light control from 2 locations. Replaces any 15 Amp or 20 Amp 3-way switch Controls light(s) from 2 locations Two 3-way switches must be used in a 3-way circuit Back and side wired Back wired and side wired for installation Dimensions Product Depth (in.) 1.03 in Product Height (in.) 4.06 in Product Width (in.) 1.31 in Details Amperage (amps) 20 A Color Family White Color/Finish White Electrical Features No Additional Features Electrical Product Type Switch Function Type On-Off Indoor/Outdoor Indoor Mounting Type In-Wall Number of Poles 3 Number of Switches Single Rating General Purpose Returnable 30-Day Switch Style Toggle Switch Type Maintained Terminal Type Wire Leads Voltage 120 volt, 277 volt