A protection circuit for a simulated battery cell having an output comprising an output voltage includes: at least one MOSFET connected to the output of the simulated battery cell for short-circuiting the output of the simulated battery cell; a capacitor connected to a gate electrode of the at least one MOSFET; an overvoltage detection device configured to charge the capacitor with the output voltage based on an overvoltage limit of the output voltage being exceeded; and a threshold voltage detection device configured to release the gate electrode based on a threshold value of a voltage at the capacitor not being reached.

The present invention refers to a combined device for electrical protection against transient overvoltages and monitoring of an electrical installation, of those used in installations with alternating single-phase or multi-phase current, or direct current, of those formed by cartridges plugged in to a fixed base or formed by a monoblock, both types of devices comprising one or more components for overvoltage protection in each plug-in cartridge or in the monoblock, characterised in that it comprises monitoring means configured so that they continuously measure and process one or several parameters related to the state of the electrical installation and the protective device itself, and connected to said monitoring means a series of indication means configured to indicate one or a combination of output parameters are comprised.

A fusible switch disconnect device includes a housing adapted to receive at least one fuse therein, and a switchable contact for connecting the fuse to circuitry. A current detecting element, a tripping mechanism, and control circuitry are provided to move the switchable contact to an open position in response to predetermined electrical current conditions in the device.

The invention relates to a surge protection device comprising at least one surge protection unit, consisting of a substantially U-shaped socket part and a plug part which can be fixed in the socket part and which receives a surge protection means. Insulated electric conductors on or in the socket part are contacted by means of vampire taps or displacing terminals. The surge protection device also comprises openings or perforations formed in the socket part for receiving conductors. According to the invention, the openings are selectively designed so that the electric conductors are inserted into or through the openings, and the openings are exposed in a socket part region which can be covered by the socket part such that cutting surfaces located on the base of the plug part penetrate the conductor insulation during the plug-in process and directly contact the respective conductor.

A protection device includes a meltable member, an electrode set, and a heating element. The meltable member has a core metal layer and a bottom metal layer disposed therebelow, and a melting point of the bottom metal layer is lower than that of the core metal layer. The electrode set has a first electrode, a second electrode, and an auxiliary electrode. The auxiliary electrode is located between the first electrode and the second electrode, and is disposed under the meltable member, thereby contacting the bottom metal layer. The meltable member has a hollow part penetrating the core metal layer, by which the bottom metal layer on the auxiliary electrode is exposed. The heating element is disposed under the auxiliary electrode, thereby heating up and blowing the meltable member in the event of over-voltage.

A protection device includes a meltable member, an electrode set, and a heating element. The meltable member has a core metal layer and a bottom metal layer disposed therebelow, and a melting point of the bottom metal layer is lower than that of the core metal layer. The electrode set has a first electrode, a second electrode, and an auxiliary electrode. The auxiliary electrode is located between the first electrode and the second electrode, and is disposed under the meltable member, thereby contacting the bottom metal layer. The meltable member has a hollow part penetrating the core metal layer, by which the bottom metal layer on the auxiliary electrode is exposed. The heating element is disposed under the auxiliary electrode, thereby heating up and blowing the meltable member in the event of over-voltage.

The invention relates to an assembly for a surge protection apparatus (10), comprising a disconnecting device (18) which includes a spring arm (20) having an end-side contact point (24) and a holding element (22). The holding element (22) and the contact point (24) are opposite each other in an initial position of the assembly (11). A thermally softenable material (26) is provided between the holding element (22) and the contact point (24) which connects the spring arm (20) both mechanically and electrically to the holding element (22). The assembly (11) has a remote signaling contact (50) which has a mechanical separating point (48). The spring arm (20), the holding element (22) and the remote signaling contact (50) are produced from a common stamped metal sheet (14). The stamped metal sheet (14) is at least partially insert-molded with a plastic material which forms a frame (16) The invention furthermore relates to a surge protection apparatus.

The invention relates to an assembly for a surge protection apparatus (10), comprising a disconnecting device (18) which includes a spring arm (20) having an end-side contact point (24) and a holding element (22). The holding element (22) and the contact point (24) are opposite each other in an initial position of the assembly (11). A thermally softenable material (26) is provided between the holding element (22) and the contact point (24) which connects the spring arm (20) both mechanically and electrically to the holding element (22). The assembly (11) has a remote signaling contact (50) which has a mechanical separating point (48). The spring arm (20), the holding element (22) and the remote signaling contact (50) are produced from a common stamped metal sheet (14). The stamped metal sheet (14) is at least partially insert-molded with a plastic material which forms a frame (16) The invention furthermore relates to a surge protection apparatus.

Disclosed in the present invention are a linkage mechanism, a base, and a surge protection device. The linkage mechanism comprises a linkage swing rod and transmission components, wherein the linkage swing rod is arranged to be rotatably connected, and is provided with a trigger portion capable of triggering a switch when rotating and at least two stress portions arranged spaced apart from each other on one side of an axis of rotation of the linkage swing rod; one transmission component is arranged corresponding to each of the stress portions; and the transmission components are arranged in such a way that any of the transmission components applies a pushing force to the stress portion to rotate the linkage swing rod, and thus the trigger portion triggers the switch. According to the surge protecting device using the linkage mechanism provided in the present invention, a module failure signal can be sent out when any surge protection module fails under the condition where only one microswitch is arranged, which not only simplifies the structure of the surge protecting device and reduces the volume, but also reduces the cost.

Disclosed in the present invention are a linkage mechanism, a base, and a surge protection device. The linkage mechanism comprises a linkage swing rod and transmission components, wherein the linkage swing rod is arranged to be rotatably connected, and is provided with a trigger portion capable of triggering a switch when rotating and at least two stress portions arranged spaced apart from each other on one side of an axis of rotation of the linkage swing rod; one transmission component is arranged corresponding to each of the stress portions; and the transmission components are arranged in such a way that any of the transmission components applies a pushing force to the stress portion to rotate the linkage swing rod, and thus the trigger portion triggers the switch. According to the surge protecting device using the linkage mechanism provided in the present invention, a module failure signal can be sent out when any surge protection module fails under the condition where only one microswitch is arranged, which not only simplifies the structure of the surge protecting device and reduces the volume, but also reduces the cost.