RCBO (residual current circuit breaker with overcurrent protection), Easy9 series, 1P+N configuration, 2-module width, 40 A nominal current, C-curve, and 30 mA residual current sensitivity. It combines overload and short-circuit protection with earth-leakage protection. The reference EZ9D35640 is specified by Schneider Electric as Type AC, with a breaking capacity of 6 kA.