The GE ALF3421AB Main Service Panelboard is a 125-amp panel designed for 208Y/120V, three-phase, four-wire electrical systems. As a main service panelboard, it serves as the primary power distribution point for 208Y/120V, 3P4W configurations. Model ALF3421AB denotes General Electric's panelboard with a 125-amp, 208Y/120V, 3P4W main service specification.
