This is a 3 poles basic frame for Compact NSX250B.::Compact NSX is designed to optimize space and breaking capacity for all standard and specific applications.::This basic frame comes without trip unit, and is compatible with any type of trip unit which has to be ordered separately::The breaking capacity Icu is 25kA at 415VAC 50/60Hz.::The operational voltage is 690VAC 50/60Hz (limited to 440VAC 50/60Hz if there is an earth-leakage protection).::It can be equipped with a variety of optional functions and accessories.::The dimensions are 105mm x 161mm x 86mm.::It ensures compliance with international standards (IEC 60947), CCC, EAC and marine specifications.::Compact NSX250B is part of Schneider Electric EcoStruxure Power architecture.