Electrical Fuses and Circuit Protection Distributed by Area51
Circuits are delicate electronic components and precautions must be taken to protect them. Area51 has a wide array of different electrical fuses and other types of circuit protection. They carry lines from COOPER BUSSMANN, LITTELFUSE, OPTIFUSE, P&B/TYCO, and RAYCHEM/TYCO. Whether you need the most technologically advanced electrical fuses and circuit protection, or that which has been discontinued, deemed obsolete, or just on the trailing edge, Area51 goes out of its way to supply you with whatever you need.
A fuse is technically known as a ‘fusible link’. Fuses are one of the most common circuit protection devices in use today. They are included within a circuit and designed to protect it from an overcurrent. An overcurrent is the amount electrical current that is more than a particular circuit is capable of handing, which can cause the charge of electricity to flow in another path than that which was intended, which can damage a delicate circuit. Its main component consists of a strip or wire of metal that will melt when loaded with an amount of electrical current that exceeds the proper amount desired in a specific circuit, thus breaking the flow of electricity to the circuit and protecting it from an amount of current that would have been harmful to it. A properly selected electrical fuse, like other circuit protection devices, should be rated to give way at a current that is slightly more than the normal operating current of the wiring or circuit it is trying to protect.
Fuses, along with other overcurrent circuit protection devices, are characterized by the time it takes to melt the fuse and the time that is necessary to clear the circuit of a specific level of overcurrent. Fuses are categorized as ‘fast blow’ or ‘slow blow’/ ‘time delay’ based on the relative amount of time it takes a fuse to respond to an overcurrent condition. Fast blow fuses are designed to interrupt a circuit quickly when the rated current threshold is reached. They are used for electronic applications in which only a very short lived overcurrent condition can be withstood. Semiconductor devices utilize the very fastest fast blow fuses (‘ultrafast fuses’) to protect their fragile circuitry. Slow blow fuses are used for applications in which a circuit may have to withstand a temporary overcurrent condition during normal operations (the high current necessary to start an electric motor, for instance) and will only blow if that overcurrent condition is sustained for an extended period of time.
Fuses are also rated on the maximum amount of overcurrent it can safely protect a circuit against. In most circuits it is slightly higher than the maximum current that a circuit can withstand before shorting out, though it can be lower if there are multiple circuits in the flow of the circuit. There is also a rating for the maximum amount of circuit voltage that a particular fuse can be used for. With the importance of ratings for the multitude of different fuses and applications for circuit protection, it is no surprise that the majority of fuse manufacturers comply with established guidelines and standards that are required by government agencies and certification authorities.
A fuse is technically known as a ‘fusible link’. Fuses are one of the most common circuit protection devices in use today. They are included within a circuit and designed to protect it from an overcurrent. An overcurrent is the amount electrical current that is more than a particular circuit is capable of handing, which can cause the charge of electricity to flow in another path than that which was intended, which can damage a delicate circuit. Its main component consists of a strip or wire of metal that will melt when loaded with an amount of electrical current that exceeds the proper amount desired in a specific circuit, thus breaking the flow of electricity to the circuit and protecting it from an amount of current that would have been harmful to it. A properly selected electrical fuse, like other circuit protection devices, should be rated to give way at a current that is slightly more than the normal operating current of the wiring or circuit it is trying to protect.
Fuses, along with other overcurrent circuit protection devices, are characterized by the time it takes to melt the fuse and the time that is necessary to clear the circuit of a specific level of overcurrent. Fuses are categorized as ‘fast blow’ or ‘slow blow’/ ‘time delay’ based on the relative amount of time it takes a fuse to respond to an overcurrent condition. Fast blow fuses are designed to interrupt a circuit quickly when the rated current threshold is reached. They are used for electronic applications in which only a very short lived overcurrent condition can be withstood. Semiconductor devices utilize the very fastest fast blow fuses (‘ultrafast fuses’) to protect their fragile circuitry. Slow blow fuses are used for applications in which a circuit may have to withstand a temporary overcurrent condition during normal operations (the high current necessary to start an electric motor, for instance) and will only blow if that overcurrent condition is sustained for an extended period of time.
Fuses are also rated on the maximum amount of overcurrent it can safely protect a circuit against. In most circuits it is slightly higher than the maximum current that a circuit can withstand before shorting out, though it can be lower if there are multiple circuits in the flow of the circuit. There is also a rating for the maximum amount of circuit voltage that a particular fuse can be used for. With the importance of ratings for the multitude of different fuses and applications for circuit protection, it is no surprise that the majority of fuse manufacturers comply with established guidelines and standards that are required by government agencies and certification authorities.
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