Low voltage switch pole

A switch pole for a low voltage switching device comprising:

• an insulating casing defining an internal space with a contact area and an arc extinguishing area of the switch pole;
• a fixed contact assembly and a movable contact assembly positioned in the contact area and including, respectively, one or more fixed contacts and one or more movable contacts, which can be mutually coupled or uncoupled;
• and
• an arc chamber positioned in the arc extinguishing area and comprising a plurality of arc-breaking elements, wherein the arc-breaking elements comprise a plurality of parallel arc-breaking plates and a terminal arc-breaking element, the terminal arc-breaking element is arranged in distal position from the fixed contact assembly compared to the arc-breaking plates,
• wherein the terminal arc-breaking element comprises a plate portion, which is arranged in parallel to the arc-breaking plates and has one or more through openings, and an elongated portion, which protrudes from the plate portion and extends across the arc-extinguishing area, from the plate portion towards the fixed contact assembly, and
• wherein the insulating casing comprises an insulating wall partially separating the contact area from the arc extinguishing area in distal position from the fixed contact assembly, a terminal edge of the insulating wall abuts the elongated portion and a lower edge of the plate portion.