Abstract: The main body frame includes a first frame including a flexible protruding plate portion, a second frame facing the first frame in a first direction to form the housing section, and a snap-fit mechanism connecting the first frame to the second frame. The snap-fit mechanism includes a fitted portion provided on the flexible protruding plate portion and a fitting projection portion provided on a side wall of the second frame and fitting with the fitted portion. The fitting projection portion and the fitted portion are fitted by bringing the first and second frames into relative proximity in the first direction, and the fitting is released by relatively displacing the first and second frames in a second direction orthogonal to the first direction.

Abstract: There is provided an electric device configured to allow easy replacement of one or more electric components housed in a first frame and a second frame and suppressing relative displacement of the first frame and the second frame to enhance reliability. A bulging wall member of a body frame is formed by a bulging wall member of the first frame and a bulging wall member of the second frame, both members being contiguous in a Z-direction. A relative displacement suppression mechanism configured to suppress relative displacement of an X-direction and a Y-direction is provided in an area in which the bulging wall member and the bulging wall member are contiguous.

Abstract: An electromagnetic contactor includes a stationary contact element including a stationary contact, a movable contact element including a movable contact configured to be able to contact and separate from the stationary contact, an arc-extinguishing chamber that contains a contact portion that includes the stationary contact and the movable contact, and an arc runner provided in the arc-extinguishing chamber. The arc-extinguishing chamber includes an insulating wall portion that is situated beside the stationary contact element in a first direction that is a width direction of the stationary contact element. The arc runner is situated beside the contact portion in a second direction that is perpendicular to the first direction.

Abstract: A non-magnetic plate having a thin plate shape and being attachable to and detachable from a shaft of an electromagnet included in an electromagnetic contactor, the non-magnetic plate includes: a hole having a circular shape provided at a center of the non-magnetic plate, into which the shaft is to be fitted; and a cutout provided in connection with a front end portion of the non-magnetic plate and the hole, for having the shaft inserted into the hole through from the front end portion side.

Abstract: This auxiliary contact unit includes a case and a case that are divided from each other in the width direction. The case includes a side wall portion and a partition wall portion protruding from a wall surface of the side wall portion toward the case. The case includes a side wall portion having a wall surface with which a tip end of the partition wall portion comes into contact when the case is assembled to the case. A space surrounded by the side wall portion, the partition wall portion, and the side wall portion serves as a contact housing portion. The side wall portion includes a pass-by wall portion protruding from a wall surface toward the side wall portion along the partition wall portion.

Abstract: An auxiliary contact unit to be attached on a side surface of an electromagnetic contactor by a snap-fit, wherein the snap-fit includes: a projecting piece projecting toward the electromagnetic contactor and having a tip end portion engaging with the electromagnetic contactor, the tip end portion being formed in a hook shape; and a release operating portion formed on a base end side of the projecting piece and configured to, by bending when pressed from an outside, cause the tip end portion engaged with the electromagnetic contactor to be released.

Abstract: The main body frame includes a first frame including a flexible protruding plate portion, a second frame facing the first frame in a first direction to form the housing section, and a snap-fit mechanism connecting the first frame to the second frame. The snap-fit mechanism includes a fitted portion provided on the flexible protruding plate portion and a fitting projection portion provided on a side wall of the second frame and fitting with the fitted portion. The fitting projection portion and the fitted portion are fitted by bringing the first and second frames into relative proximity in the first direction, and the fitting is released by relatively displacing the first and second frames in a second direction orthogonal to the first direction.