Back to results
US 5,373,273 AGranted
Electric circuit-breaker of the magnetic arc extinction type
AssigneeTelemecanique
InventorsJean-Pierre Guery, Jean-Luc Mertz, Jacques Olifant
Life of this patent
Estimating the term…
Abstract
An electric circuit-breaker of the magnetic arc extinction type includes a fixed contact member comprising two electrically insulative parts. An auxiliary part of the fixed contact member is connected to an auxiliary terminal and includes an arc deflector branch so disposed that when the contacts open the current flows in opposite directions in this branch and in the mobile contact member.
Claims8
A circuit breaker comprising:
- at least one fixed member including a fixed contact;
- at least one mobile member including a mobile contact;
- an actuator for actuating the mobile contact to be in contact with and open from the fixed contact, the actuator being tripped in response to an excess current;
- an electrical device to be protected from the excess current and connected to the fixed contact;
- wherein said at least one fixed member comprises a first branch on which the fixed contact is formed and a second branch electrically insulated by a first insulative gap from the first branch, and wherein when the mobile contact is in contact with the fixed contact, current flows from the mobile contact through the first branch in a direction opposite to a current flow through the mobile member, and wherein when the mobile contact is open from the fixed contact, current flows from the mobile contact through the second branch in a direction opposite to the current flow through the mobile member.
2 more elements
Dependencies are inferred from the claim text.