摘要:
The invention relates to a spacer (10) for matching a gap in a spring hook (30) to the thickness of a conductor bar (50), which spacer can be fitted on the spring hook (30) in such a way that it is capable of rotating about an axis of rotation (60) and has, in order to bear against a conductor bar (50), at least one convexly shaped region (11), wherein the axis of rotation (60) is located on the side of the opening of the convex region (11) behind said convex region (11); and furthermore a spring hook (30) with a hook limb (31) on the device side which is fixed to the device (70) and at least one clamping hook limb (32), which is designed to be substantially parallel to the device-side hook limb (31), for absorbing a clamping force and at least one connecting web (33), which connects the two hook limbs (31, 32), and with a device (34) for the rotatable arrangement of a spacer (10), wherein the axis of rotation (60) of the device (34) for the rotatable fixing of the spacer (10) is arranged on the clamping hook limb (32).
摘要:
The invention relates to a method for closing a switch (1) and a switch (1) for performing the method, the switch (1) having (a) a stationary switch contact (4) comprising a stationary contact face (4b), (b) a movable switch contact (5) comprising a movable contact face (5b) which runs parallel to the stationary contact face (4b) and lies under pressure against the stationary contact face (4b) in the closed state, and (c) an elastic transversal offset of the contact faces (4, 5) which ensures that pressure is applied when the contact surfaces (4, 5) lie against each other. In order to guarantee closing during a short-circuit, a displaceable counter-pressure element (11) is provided which presses against the movable contact face (5b) in the open position and at least reduces the transversal offset, characterised in that the counter-pressure element (11) moves in conjunction with the movable switch contact (5) towards the closed position when the switch closes and in that the counter-pressure element (11) stops moving during the closing movement, while the movable contact face (5b) continues to move into the closed position.