Residual current circuit breaker, 4 pole, 6kA, 40A, 30mA Type A QuickConnect. This device complies with EN 61008-1, DIN EN 61008-2-1, and VDE 0664 part 10 and 11. It features a QuickConnect terminal according to DIN EN 60898-1 and VDE 0641-11, with access up to 63 A and contact protection IP2x according to DIN VDE 0106 part 100. It includes a blue test button and residual current indication. The breaker allows for simple individual removal from the busbar system and is marked with the VDE symbol. It is suitable for retrofitting additional devices and offers a labeling option directly on the device.