SEF36800LSAMRZ, Schneider Electric / Square D, SE Series, type SEF, 3P, 3PH, 800A, 600V, 100kA@480V, bolt-on, complete with Micrologic Series B trip device, LSGA - Long-Time, Short-Time and Ground Fault Alarm trip functions, solid state protection, electrically operated, "motor ready", insulated case circuit breakers, these breakers are now obsolete; however, we do still stock them