Molded Case Switch, N4, load-break switch, 3-pole, switching capacity SCCR 480Y/277 V 60 Hz Icu: 65 kA, switching capacity SCCR 600Y/347 V 60 Hz Icu: 42 kA, rated current = rated continuous current In = Iu: 1200 A, rated current = rated continuous current In = Iu: 1200 A, standard/approval: UL/CSA, IEC, installation technology: fixed installation, screw connection, protective function: load-break switch / main switch