Technical Parameters Parameter Specification Model BZMU2N-3-EX250 Rated Current (Iₙ) 250 A Frame Size 250 A Number of Poles 3P (Three Pole) Rated Voltage (Uₑ) 690 V AC Rated Frequency 50/60 Hz Breaking Capacity 65 kA (at 480 V AC) Trip Unit Type Electronic (EX type) Rated Insulation Voltage (Uᵢ) 1000 V Rated Impulse Voltage (Uᵢₘₚ) 12 kV Protection Functions Long-time (L), Short-time (S), Instantaneous (I), Ground Fault (G) Communication Protocol Modbus, Profibus (optional) Mounting Fixed Type Terminal Type Screw Clamp Wire Range 250 kcmil - 4/0 AWG Standards & Approvals UL 489, IEC 60947-2, CSA C22.2
