A thermal fuse having a bow, which has a first end with a first soldering surface for soldering to a first contact surface of a printed circuit board and a second end with a second soldering surface for soldering to a second contact surface of the printed circuit board, a tensioning element, which is secured to the bow between the first and the second end and which is designed to press with a preload against the bow and the printed circuit board once the two soldering surfaces and the contact surfaces of a printed circuit board have been soldered, wherein a portion of the bow, between the two ends thereof, has a measuring resistor connected in series to the two soldering surfaces. A printed circuit board having such a thermal fuse is additionally described.

A charging device for electric vehicles or plug-in hybrids has a housing. At least one printed circuit board with fuses thereon is arranged on the printed circuit board. The printed circuit board, together with the fuses, is arranged in the interior of the housing and is connected to the housing in a force-fitting and/or interlocking manner by at least one fastening element (2). A covering element (1) covers the printed circuit board and the fastening element (2) at least in sections, and insertion or removal of the fuses onto or from the printed circuit board can be carried out only by removing the printed circuit board from the interior of the housing. The covering element (1) has to be damaged at least in sections to remove the printed circuit board.

A device structure includes a first gate on a first fin, a second gate on a second fin, where the second gate is spaced apart from the first gate by a distance. A fuse spans the distance and is in contact with the first gate and the second gate. A first dielectric is between the first fin and the second fin, where the first dielectric is in contact with, and below, the fuse and a second dielectric is between the first gate and the second gate, where the second dielectric is on the fuse.

An environmental control device (100, 200), such as a thermostat, is disclosed. The environmental control device (100, 200) has one or more terminals (104, 104a-104i) for connecting to an HVAC system (14) and performs over current management of the terminal (104, 104a-104i) when connected to the HVAC system (14).

A three phase surge protection device is disclosed. In an embodiment a device include a stack comprising a first varistor, a second varistor and a third varistor, wherein the varistors are electrically connected to form a circuit and a first thermal disconnect configured to interrupt the circuit when a temperature of the first thermal disconnect exceeds a predefined temperature.

Provided is a fusible link unit in which a case includes case-side locking portions to be locked in a fusible link so as to affix the fusible link, the fusible link includes fusible link-side locking portions locked in the case-side locking portions, the fusible link-side locking portion on one side in a longitudinal direction is provided closer to a connected position of a bus bar than the fusible link-side locking portion on the other side in the longitudinal direction, and a gap size between the fusible link-side locking portion on the one side and the case-side locking portion in a vertical direction is made greater than a gap size between the fusible link-side locking portion on the other side and the case-side locking portion in the vertical direction.

Embodiments include a vehicle power distribution system comprising a vehicle battery having a nominal voltage; a plurality of electric loads, each load being associated with a rated voltage; and an integrated circuit coupled to the vehicle battery and comprising a plurality of solid-state circuitry blocks respectively coupled to the electric loads, each block including a circuit protection system and configured to supply the rated voltage associated with the electric load coupled to the block. Embodiments also includes a vehicle power distribution module comprising an integrated circuit configured to receive a first voltage from a vehicle battery and to supply respective rated voltages to a plurality of electric loads, the integrated circuit comprising a plurality of solid-state circuitry blocks, and each circuitry block including a circuit protection system and being coupled to a respective one of the electric loads.

A fuse unit includes a fusible link, a holding mechanism, and a locking mechanism. The fusible link is connected to a battery terminal and includes a fusible element that melts when an overcurrent flows through the fusible link. The holding mechanism includes a base portion disposed between a post standing surface of a battery housing and the battery terminal in a state where the battery terminal is fastened to a battery post provided on the post standing surface, and a holding portion that is formed next to the base portion and that holds the fusible link above the post standing surface. The locking mechanism locks the holding mechanism onto the post standing surface. With this configuration, the fuse unit can suppress a load acting on the battery post.

The object of the invention is a fuse for a device to be protected that is connected in series with the fuse, wherein the series connection is connected to a supply network with a first potential and with a second potential that is different from the first, wherein the fuse has a first contact and a second contact, with the second contact being used to electrically contact the device (8) to be protected, wherein the fuse has a fuse element that connects the first contact to the second contact, wherein the fuse also has an additional contact, with the additional contact being arranged so as to be insulated from the first contact and insulated from the second contact and, in an untripped state, is contactless with respect to the fuse element, with the first contact being directly connected to the first potential during operation and with the device to be protected being directly connected to the second potential (N) during operation, with the additional contact also being directly connected to the second potential during operation, and wherein a fourth contact is also provided that makes external triggering available, with triggering resulting in an electric arc that indirectly or directly causes the fuse element to fuse.

A fuse case and a case cover of a vacuum contactor including a truck, a main circuit unit, and a front cover covering a front side of the main circuit unit include a fuse connected to an upper terminal of the main circuit unit and blowing, when a fault current is generated in a circuit, to break the circuit, a fuse case opened in an upper side, accommodating the fuse, and having an insertion coupling part formed on a side surface thereof, and a case cover coupled to an upper side of the fuse case, coupled to the insertion coupling part in an insertion coupling manner, and covering a rear end portion of the fuse, wherein the case cover includes an upper surface portion and side surface portions, and the side surface portions include a first side surface portion and a second side surface portion.