The Schneider Electric circuit breaker basic frame used 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 dimensions are 105mm x 161mm x 86mm. It ensures compliance with international standards (IEC 60947), CCC, EAC and marine specifications. Estimated 40% reduction of wiring time for panel builders Experience easier installation thanks to a new ergonomic front-plate design Ergonomic new toggle for easier breaker manual operation