SEF361600A4, Schneider Electric / Square D, SE Series, type SEF, 3P, 3PH, 1600A, 600V, 100kA@480V, bolt-on, complete with Micrologic Series B trip device, LI - Long-Time and Instantaneous trip functions, solid state protection, complete with 2A2B with 1N.O./N.C. AC rated auxiliary switch with bell alarm, insulated case circuit breakers, these breakers are now obsolete; however, we do still stock them