048502.5DR

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Introduction to Fuses

Fuses, the most common type of over-current protection, are electrical devices that provide an intentional over-currents protection to prevent damage to other components in an electrical system. They are mainly used to prevent a circuit from overheating and catching fire, which can occur when there is too much current. Fuses are made of a metal wire or strip, heated due to the electric current passing through them, and if the current is higher than that allowed for a certain fuse, it melts and breaks the circuit.

048502.5DR Application Field

048502.5DR is a class 5DT fuse manufactured by Littelfuse, a well-known producer of fuses and other electrical components. It is primarily used to protect high-powered devices such as motors and transformers from damage that can be caused by an excessive current, thanks to Littelfuse’s integrated protection technology. Littelfuse 048502.5DR fuses are designed for use in low-voltage applications such as HVAC equipment, pumps and motors, refrigeration compressors, and electric motors, as well as in emergency lighting circuits.

048502.5DR Working Principle

The 048502.5DR fuse works on the principle of heat dissipation. It is a low-voltage, current-limiting fuse that operates via thermal overload protection. The fuse consists of a metal wire or strip, usually made of zinc, heated due to the electric current passing through it, which causes the wire or strip to expand and break the circuit. When an excessive amount of current passes through the fuse, the metal strip over-heats and melts, allowing the electricity to be released through an alternative path and thereby protecting the surrounding components.

Advantages of 048502.5DR Fuses

Littelfuse’s 048502.5DR fuse offers numerous benefits to users. The most notable advantages include:

• It is UL- and CSA-listed for safety.
• It is current-limiting, providing a fast-blown response time.
• The fuse is available in time delay or non-time delay options.
• It is designed for use in demanding motor circuits by providing high interrupting ratings.

Conclusion

The 048502.5DR fuse by Littelfuse is an ideal choice for applications that need to protect high-powered electrical devices from current overloads. It is designed with thermal overload protection and has numerous advantages, such as being UL- and CSA-listed for safety, providing fast-blown response times, being available in time-delay or non-time delay options, and being designed for use in demanding motor circuits.

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