A safety switch prevents incoincidence of contacts from occurring. The safety switch 1 is structured so as to switch the contact by cooperation of an actuator 3 and a switch bod 2. The switch body 2 includes an operating cam 21 and a locking cam 22 that are adapted to rotate by insertion of the actuator 3, an operating rod 26 that switches the contact according to rotation of the operating cam 21, and a locking lever 29 that is provided movably toward and away from the locking cam 22 such that the locking lever 29 takes a lock position IV in which it locks rotation of the locking cam 22 and an unlock position I in which it unlocks a lock state of the locking cam 22. The locking lever 29 includes a bulge 29f that protrudes toward the locking cam 22 at a portion of its cam contact surface. The cam contact surface is adapted to contact the locking cam 22 when the actuator 3 moves in a drawing-out direction in an intermediate position between the lock position IV and the unlock position I.

Switch device including a switch and a bypass mechanism and a method of manually operating the switch. The switch includes a first terminal, a second terminal, a contact member configured to be in a first position and a second position and to form a connection between the first terminal and the second terminal when in the first position or in the second position, and a control unit configured to facilitate a transition of the contact member and to retain the contact member at the first position or at the second position in the absence of an external force. The bypass mechanism includes at least one moveable member having a first surface configured to contact the contact member at a first angle that is acute or obtuse. Energy generation and/or storage systems contain the switch device, and methods of controlling connection of these systems to a power grid and/or a load.

The present invention relates to the technical field of switch linkage, and discloses a power transmission switch, comprising: a switch key for controlling a power supply to convert an output state, wherein the switch key is provided with two adjacently arranged slots; and the slots are used for plug-in cooperation with a plug-in sheet which is used for plug-in cooperation with two switch keys arranged side by side respectively, so that the two switch keys realize linkage control. The plug-in sheet has respectively plug-in cooperation with the two switch keys arranged side by side to enable the two switch keys to realize linkage control, and thus a power transmission switch is provided to facilitate the linkage control of the two switches.

The present invention relates to the technical field of switch linkage, and discloses a power transmission switch, comprising: a switch key for controlling a power supply to convert an output state, wherein the switch key is provided with two adjacently arranged slots; and the slots are used for plug-in cooperation with a plug-in sheet which is used for plug-in cooperation with two switch keys arranged side by side respectively, so that the two switch keys realize linkage control. The plug-in sheet has respectively plug-in cooperation with the two switch keys arranged side by side to enable the two switch keys to realize linkage control, and thus a power transmission switch is provided to facilitate the linkage control of the two switches.

An integrated system for engaging electric brakes of a towed vehicle when the towed vehicle separates from a towing vehicle, comprising a power source, a first junction pole configured to be connected with an electric ground, a second junction pole configured to be connected with the electric brakes of the towed vehicle, an electrical connector connecting the first junction pole with the power source, a breakaway switch, and a housing containing the power source, first and second junction poles, and the electrical connector. The electrical connector includes a first end fixedly connected with the first junction pole and the breakaway switch includes an electrical connector fixedly connected to the second junction pole. Another integrated system further housing the breakaway switch and comprising fixed connections between the first junction pole and the power source, the second junction pole and the breakaway switch, and the breakaway switch and the power source.

An integrated system for engaging electric brakes of a towed vehicle when the towed vehicle separates from a towing vehicle, comprising a power source, a first junction pole configured to be connected with an electric ground, a second junction pole configured to be connected with the electric brakes of the towed vehicle, an electrical connector connecting the first junction pole with the power source, a breakaway switch, and a housing containing the power source, first and second junction poles, and the electrical connector. The electrical connector includes a first end fixedly connected with the first junction pole and the breakaway switch includes an electrical connector fixedly connected to the second junction pole. Another integrated system further housing the breakaway switch and comprising fixed connections between the first junction pole and the power source, the second junction pole and the breakaway switch, and the breakaway switch and the power source.

A power transmission switch includes a switch key for controlling a power supply to convert an output state. The switch key is provided with two adjacently arranged slots; and the slots are used for plug-in cooperation with a plug-in sheet. The plug-in sheet is used for plug-in cooperation with two switch keys arranged side by side respectively, so that the two switch keys realize linkage control. The plug-in sheet has respectively plug-in cooperation with the two switch keys arranged side by side to enable the two switch keys to realize linkage control, and thus a power transmission switch is provided to facilitate the linkage control of the two switches.

A power transmission switch includes a switch key for controlling a power supply to convert an output state. The switch key is provided with two adjacently arranged slots; and the slots are used for plug-in cooperation with a plug-in sheet. The plug-in sheet is used for plug-in cooperation with two switch keys arranged side by side respectively, so that the two switch keys realize linkage control. The plug-in sheet has respectively plug-in cooperation with the two switch keys arranged side by side to enable the two switch keys to realize linkage control, and thus a power transmission switch is provided to facilitate the linkage control of the two switches.

An interface test device for testing a circuit, the interface test device including a module configured to open and close a medium to high voltage monitoring circuit, the module having at least one pair of contacts biased towards each other that are electrically connected and in line with the medium to high voltage monitoring circuit; at least one pair of insulated jacks, wherein the at least one pair of insulated jacks is connected to the medium to high voltage monitoring circuit before or substantially simultaneously with the medium to high voltage monitoring circuit being opened; at least one disconnect plug that is insertable into the module through at least one parking opening into at least one parking position and insertable into the module through at least one disconnect opening into at least one disconnect position.

An interface test device for testing a circuit, the interface test device including a module configured to open and close a medium to high voltage monitoring circuit, the module having at least one pair of contacts biased towards each other that are electrically connected and in line with the medium to high voltage monitoring circuit; at least one pair of insulated jacks, wherein the at least one pair of insulated jacks is connected to the medium to high voltage monitoring circuit before or substantially simultaneously with the medium to high voltage monitoring circuit being opened; at least one disconnect plug that is insertable into the module through at least one parking opening into at least one parking position and insertable into the module through at least one disconnect opening into at least one disconnect position.