Arc quenching device for low-voltage switching devices

An arc quenching device for an air-switching low-voltage switching device, comprising:

• a quenching chamber which has quenching plates and a cover for covering the quenching chamber, the cover being provided with outlet openings for switching gases, wherein the quenching chamber includes means for accommodating an optionally usable separate cooling device that includes a sieve for the switching gases,
• wherein the optionally usable separate cooling device is in the form of a frame for accommodating the sieve and is suitable for installation in an interior of the arc quenching device, between the quenching plates and the cover, with the quenching plates being supported independently of the cover,
• wherein the optionally usable cooling device has a covering panel and a base panel added to it to form an insert cartridge, the insert cartridge forms a cavity for the introduction of the sieve, and wherein aperture openings are provided for the switching gases in the covering panel and in the base panel.