Residual current circuit breaker 1P+N 10kA C-20A 30mA Type A. Residual current circuit breaker in accordance with DIN EN61009-1 (VDE 0664-20) and DIN EN 61009-2-1 (VDE 0664-21) with bi-connect terminals at the bottom, blue test button and residual current display. Easy to remove from the phase busbar system. Suitable for the subsequent installation of additional equipment. Labeling option directly on the device.