Welding current source

1. A welding current source for supplying an arc welding torch with electrical current and voltage for carrying out an arc welding method, the welding current source comprising:

a housing in which a current transformer device is provided for processing electrical current and voltage fed into the welding current source for suitability in an arc welding method, the housing has at least one lower section and at least one upper section, wherein the at least one upper section is at a greater distance than the at least one lower section of the housing from a plane of a stand base, and the at least one upper section projects beyond the at least one lower section;

two pole contact devices connected to the housing, at least one of the pole contact devices is arranged on an underside of the at least one upper section; and

a welding current cable connected to each of the two pole contact devices with a connecting means,

wherein the two pole contact devices are situated entirely within a projection surface of the housing in the plane in which the stand base of the welding current source is situated, the two pole contact devices protruding out of the housing from the projection surface along a longitudinal axis that intersects the projection surface, at least one pole contact device of the two pole contact devices is equipped with a connecting means which is provided for producing and for fixing a releasable connection of the at least one pole contact device to a welding current cable using a rotational movement of a connecting means about a longitudinal axis of the at least one pole contact device, wherein the longitudinal axis emerges from the housing of the welding current source in such a manner that the longitudinal axis is oriented in a direction of the plane of the stand base, and

wherein the projection surface is implemented by a projection along an axis running perpendicular to the stand base.

2. The welding current source according to claim 1 , wherein the underside being at a distance from the stand base of the housing.

3. The welding current source according to claim 1 , wherein the at least one upper section of the housing projects beyond the at least one lower section on two sides of the housing.

4. The welding current source according to claim 3 , wherein one of the two pole contact devices is arranged on one of the projecting sides of the housing on the respective underside thereof.

5. The welding current source according to claim 3 , wherein at least one cable guide means arranged on the housing for at least one welding current cable, through which the welding current cable can be guided to the rear of the housing.

6. The welding current source according to claim 1 , wherein an orientation of the longitudinal axis of at least one of the pole contact devices in which the longitudinal axis of the pole contact device forms an angle with a perpendicular intersecting the stand base in a range from 0° to 45°.

7. The welding current source according to claim 1 , wherein at least one current-carrying cable connected by means of a contacting and connecting device of the welding current cable to the pole contact device of the welding current source, the contacting and connecting device of the welding current cable being situated entirely within the projection surface of the housing in the plane in which the stand base of the welding current source is situated.