0034.5139

Fuses are electrical devices used to protect circuits, equipment, and personnel from electrical overloads. They are designed to open the circuit under an overload or short circuit condition, limit the total current that passes through the circuit, and protect against further damage to the components that make up the circuit. Fuses also provide a backup for other devices, like circuit breakers, that might be installed in an electrical power system.

The 0034.5139 application field and working principle is a type of fuse used for the protection of buses, transformers, and high current circuits. The fuse is designed to interrupt and protect high circuit current during fault conditions with a minimum trip current and a maximum damage current defined by the faulting circuit. A fuse can be thought of as a pressure switch, in that when the pressure of the current increases, the fuse melts and opens the circuit.

The 0034.5139 fuse is rated with a melting-time/current rating. This designation is the ratio of time it takes for the fuse to open when a certain current is flowing. It is important to select the correct size fuse for the application in order to ensure protection of the circuit and personnel. Each 0034.5139 fuse is marked with the current rating (Amps) and the melting-time/current rating.

The 0034.5139 fuse is designed to provide protection against fault currents and low-level over current. The fuse is constructed from tubular and locular components, insulated with a binder system filled with activated carbon. This design allows for higher level fusing current and increased cold resistance performance.

The fuse is essentially a liquid metal or alloy contained in a hermetically sealed container that melts as the current increases. The internal fuse material is designed to have a specific melting temperature to trip the fuse at a desired current intensity. The melting temperature is determined by the material used in the fuse and is determined based on the application and environment.

The working principle of the 0034.5139 fuse is based on the concept of thermal overload protection. When current passes through the fuse, heat is generated as a result of the electrical resistance. This heat is dissipated into the surrounding air and reduces the temperature of the fuse element. If the current increases to a level higher than the pre-determined rating of the fuse, then the fuse element will start to melt and open the circuit. This action is known as tripping of the fuse and serves to protect the circuit and its components.

In summary, the 0034.5139 application field and working principle is a type of fuse used for the protection of buses, transformers, and high current circuits. The fuse is designed to interrupt and protect high circuit current during fault conditions with a minimum trip current and a maximum damage current defined by the faulting circuit. The fuse is basically a tubular component filled with a liquid metal or alloy that melts when the current rating is surpassed, therefore opening the circuit and protecting the circuit components from fault current and overloads.