Abstract: An electromechanical rotary latch for use in current interruption devices disclosed. In a particular embodiment, a fuse device comprises a rotary latch; a rotatable armature configured to actuate the rotary latch; and a contact configured to change between a set position that allows current flow through the fuse device and a triggered position which interrupts current flow through the fuse device; wherein the fuse device is configured such that when a threshold current level passes through the fuse device, the rotatable armature changes configuration in response to a generated electromagnetic field, which actuates the rotary latch causing the contact to transition to the triggered position.

Abstract: An electromechanical rotary latch for use in current interruption devices disclosed. In a particular embodiment, a fuse device comprises a rotary latch; a rotatable armature configured to actuate the rotary latch; and a contact configured to change between a set position that allows current flow through the fuse device and a triggered position which interrupts current flow through the fuse device; wherein the fuse device is configured such that when a threshold current level passes through the fuse device, the rotatable armature changes configuration in response to a generated electromagnetic field, which actuates the rotary latch causing the contact to transition to the triggered position.

Abstract: A switch assembly including a housing. An escutcheon portion on the front surface of the housing has a raised platform. A transition ramp extends from the platform to a rest area and a finger area is adjacent the rest area. A perimeter frame encloses the finger area so that the escutcheon portion defines opposing notches aligned with the rest area. A handle has a hub with an axial bore so that a pivot pin insert through the axial bore rotatably couples the handle to the housing. A finger grip extends from the hub. The finger grip has a surface for selectively abutting against the rest area and a textured portion for manual actuation when a finger in inserted into the finger area.

Abstract: A retaining element for a toggle switch, including an elongated toggle member which pivots about an axis with respect to a switch body, having an attachment portion, connecting the retaining element to the elongated toggle member and being adapted to supply a force against the elongated toggle member to hold the toggle in a defined position, a connecting arm, extending from the attachment, adapted to supply a force in the defined position against the body with respect to a path of movement of the elongated toggle member, and a manually graspable member, adapted to transmit a force for displacing the attachment from the defined position.

Abstract: Tripping of the poles of a multi-pole breaker requires less force from current sensing actuators, through use of a lost motion linkage including a trip link which unlatches the linkage holding one pole contact set closed before operating the inter-pole tripping elements. Preferably the breaker has a fast forcing arrangement for forcing a movable contact open under short-circuit conditions, faster than the normal contact opening spring can respond. The lost motion linkage is provided by a trip link which first releases a secondary latch to permit contact opening at normal speed, and then operates an inter-pole tripping element. Under short-circuit conditions the trip link engages the movable contact to force it open, between unlatching and engagement of the inter-pole tripping element.