A three-stage control mechanism of an explosion-proof switch has a rotating unit and an interconnecting unit. The rotating unit has a first drive portion and a second drive portion that are selectively operated and reciprocated. The interconnecting unit includes a retaining seat and a connecting member. A switch unit is connected to the connecting member. An intermediate sleeve is insertedly connected to the connecting member and extends into the retaining seat. An outer sleeve is tightly sleeved on an outer wall of the intermediate sleeve. The outer sleeve is in tight fit with the retaining seat. A movable cover is provided between the outer sleeve and the rotating unit. A connecting rod assembly includes a first connecting rod and a second connecting rod that are inserted in the intermediate sleeve. The first and second connecting rods are respectively driven by the first and second drive portions.

A device assembly for accommodating an electrically operated device may include a housing made from a plastic, delimiting a housing interior space, and having a viewing window formed therein that may be closed by a window pane made of a transparent material. The device may include an electrically operated device arranged inside the housing interior space, on the outside of which at least one actuatable control element may be provided. An aperture may be formed in a housing wall in which an actuating element made from an elastic plastic may be arranged at least partially and may be operable by a user of the electrically operated device. The actuating element may be coupled mechanically to the control element such that the control element is operable from outside the housing. An inner housing part made from an elastic plastic may be arranged on an inner side of the housing wall.

An actuator assembly for actuating electrical switches housed in an electrical enclosure is disclosed. The assembly includes at least one handle assembly including a handle positioned above a cover of the enclosure, a trip bracket positioned below the cover and a shaft connecting the handle to the trip bracket. At least one slider actuator is slidably mounted over the electrical switch and coupled to a toggle of the electrical switch. The slider actuator has a drive link which is adapted to be engaged with the trip bracket such that rotation of the handle causes the drive link to slide which in turn causes a linear movement of the slider actuator to toggle the electrical switch. The use of the slider actuator allows a higher density of electrical switches to be stacked inside the enclosure.

The invention provides an explosion-proof switch and an explosion-proof electrical device. A second protective shell is provided with a second receiving cavity, and a switch element is received in the second receiving cavity; and a button is slidably assembled in the second protective shell and received in the second receiving cavity, and the button is able to slide to be in contact with or separated from the switch element to turn on or off the switch element. By arranging the switch element in a first protective shell and the second protective shell and arranging the button in the second protective shell, the explosion-proof switch can resist impacts and explosions, and the explosion-proof switch and the explosion-proof electrical device can be used together more easily.