Square D by Schneider Electric EHN3CL Mounting Base

Square D by Schneider Electric EHN3CL mounting base is a three-pole interior base for EH and EHB circuit breakers, designed to support a 3-pole, 4-wire assembly in 480Y/277 V AC three-phase panels. This cataloged accessory provides three breaker spaces and is intended for interior panel installations, aligning with standard EH/EHB accessory mounting bosses. The EHN3CL (Unit Mounting Base) is listed for interior use and compatible with EH/EHB breakers, enabling a compact, integrated protection solution in commercial and industrial electrical distributions. As a legacy component in the Square D line, the mounting base has been documented as discontinued by the manufacturer, though remaining stock may still be found with distributors and resellers.