A device for filling a container with a fill product, for example, in a beverage filling plant, is described. The device includes a housing for accommodating an electronics module for controlling an electromechanical actuator of a filler valve, an electronics module accommodated in the housing, and at least one opening provided in the housing for feeding through an electrical contacting for the electronics module from outside the housing. The opening is sealed in a fluid-tight manner by a connecting device welded to the housing for feeding through the electrical contacting.