The invention relates to a connector and a method for connecting a circuit board with at least one conductor, the circuit board having at least one pad, the connector having a fastening means, a recess, the connector being fastenable on the circuit board by means of the fastening means, the recess being formed on a first side of the connector and extending at least past a second side which is arranged transversely to the first side, wherein, in an installed state of the connector on the circuit board, the at least one pad is arrangeable in the recess on the first side, and the recess forms a first opening on the second side, into which first opening the at least one conductor is introducible, and a second opening is configured at a third side which is opposite the first side, wherein, via the second opening, heat can be provided for connecting the at least one conductor with the at least one pad. The invention also relates to a circuit board and a method for connecting a circuit board with at least one conductor of a wire.