Electronic Trip Circuit Breakers P-frame, 3P, MicroLogic™ Electronic-Trip Unit, IEC Rated R-frame, 3P, MicroLogic™ Electronic-Trip Unit, IEC Rated P-frame, 4P, MicroLogic™ Electronic-Trip Unit, IEC Rated R-frame, 4P, MicroLogic™ Electronic-Trip Unit, IEC Rated Parent topic: International Circuit Breakers