Circuit breaker NZM2, 3-pole, switching capacity SCCR 480Y/277 V 60 Hz(Icu): 25 kA, switching capacity SCCR 600Y/347 V 60 Hz(Icu): 18 kA, switching capacity SCCR 480 V 60 Hz(Icu): 25 kA, rated current = rated continuous current rated current = rated continuous current(In = Iu): 20 A, installation technology: fixed installation, standard equipment: screw connection, standard/approval: UL/CSA, IEC, protective function: system and cable protection