Flush-mounted switching actuator, Busch-Welcome (2-wire system), system devices, flush-mounted switching actuator for installation in a flush-mounted box. Switching actuator for connection to the door communication bus. Switches connected consumers when an incoming door call is received (e.g. an external gong). Potential-free output: 230V, 3AX. Consumption units: 1 Protection class (device): IP 20 Temperature range (device): -5 °C to 45 °C Dimensions (H x W x D): 51 mm x 51 mm x 28 mm
