System Pro M Compact, 2P, Type C A range of Residual Current Circuit-breakers with overcurrent protection and integrated in the System Pro M Compact® Range to offer complete protection in a single device. 2 Pole C characteristic Rated voltage of 230 Vac DIN Mount ABB RCBO's & RCCB's RCBO's : DIN rail mounting with an operating temperature range of -25 to +55 °C. Optimum frequency range of 50 to 60Hz