Low voltage switch pole
AssigneeABB AB
InventorsNicola Bresciani, Pierantonio Arrighetti
Life of this patent
Estimating the term…
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AssigneeABB AB
InventorsNicola Bresciani, Pierantonio Arrighetti
Estimating the term…
A low voltage switch pole which comprises an insulating casing having lateral walls and a front and a rear wall and defining an internal space with a contact area and an arc extinguishing area, a fixed contact assembly and a movable contact assembly being positioned in said contact area, said movable contact assembly being movable between a closed position in which it is into contact with said fixed contact assembly and an open position in which it is spaced apart from said fixed contact assembly, an arc chamber comprising a plurality of substantially parallel metallic plates inserted into an enclosure made of insulating material being positioned in said arc extinguishing area; the switch pole further comprises an insulating wall which is positioned in said internal space between said contact area and said arc extinguishing area and partially separates said contact area from said arc extinguishing area, a channel connecting said contact area to said arc extinguishing area being provided in said insulating wall.
A low voltage switch pole comprising an insulating casing having lateral walls and a front and a rear wall and defining an internal space with a contact area and an arc extinguishing area, a fixed contact assembly and a movable contact assembly being positioned in said contact area, said movable contact assembly being movable between a closed position in which it is into contact with said fixed contact assembly and an open position in which it is spaced apart from said fixed contact assembly, an arc chamber comprising a plurality of substantially parallel metallic plates inserted into an enclosure made of insulating material being positioned in said arc extinguishing area, characterized in that an insulating wall is positioned in said internal space between said contact area and said arc extinguishing area and partially separates said contact area from said arc extinguishing area, and in that a channel connecting said contact area to said arc extinguishing area is provided in said insulating wall.
A low voltage switch pole comprising:
Dependencies are inferred from the claim text.