Patent ID: 8581128

Claim:
A breaker comprising: a contact unit provided in an airtight container, the contact unit having fixed contact points and a movable contact point which selectively contacts with the fixed contact points; a movable shaft having a part projecting outward from the airtight container, for moving the movable contact point to and from the fixed contact points; a metal member having one end fixed to the airtight container and the other end fixed to the movable shaft and being extensible and contractible in accordance with a movement of the movable shaft; a lever unit configured to move the movable shaft between a closed position where the movable contact point is in contact with the fixed contact points and an open position where the movable contact point is separated from the fixed contact points, and a base accommodating therein at least the contact unit, the movable shaft and the metal member, wherein the lever unit includes: an inner lever disposed in the base and connected to the movable shaft; a manipulation portion projecting outward from the base; and an outer lever having a pressing portion for pressing the inner lever in accordance with the manipulation of the manipulation portion, the pressing portion of the outer lever and the inner lever being not connected to each other.