Invention Grant
- Patent Title: Low voltage switch pole
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Application No.: US16985282Application Date: 2020-08-05
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Publication No.: US11355290B2Publication Date: 2022-06-07
- Inventor: Pierantonio Arrighetti , Marco Bonfanti
- Applicant: ABB S.p.A.
- Applicant Address: IT Milan
- Assignee: ABB S.p.A.
- Current Assignee: ABB S.p.A.
- Current Assignee Address: IT Milan
- Agency: Greenberg Traurig, LLP
- Priority: EP19189944 20190805
- Main IPC: H01H9/30
- IPC: H01H9/30 ; H01H9/34

Abstract:
A low voltage switch pole including an insulating casing defining an internal space with a contact area and an arc extinguishing area, a fixed contact assembly and a movable contact assembly being position in the contact area, the movable contact assembly being movable between a closed position in which it is into contact with the fixed contact assembly and an open position in which it is spaced apart from the fixed contact assembly, an arc chamber including a plurality of substantially parallel metallic plates being position in the arc extinguishing area, wherein fixed contact assembly is provided with a contact support, a contact surface contacting the movable contact assembly in the closed position and positioned on the contact support, and a conductive expansion plate positioned on the contact support and extending toward the arc chamber, and wherein the fixed contact assembly is provided with a gasifying plate which is directly mounted on the conductive expansion plate.
Public/Granted literature
- US20210043396A1 LOW VOLTAGE SWITCH POLE Public/Granted day:2021-02-11
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