FWPQ-500A

The FWPQ-500A fuse is a type of specialty fuse that has a wide variety of applications in different industries. It is called a “fast-acting” fuse because it can quickly disconnect an electrical circuit in the event of an overcurrent or short circuit. The fuse has a designed breaking capacity of 500 amps, which means it can safely handle a maximum of 500 amps of electrical current before tripping. It has been approved for use in UL (Underwriters Lab) applications, making it an ideal choice for many commercial and industrial applications.

Design and Structure

The FWPQ-500A fuse has a cylindrical body with copper contacts and a high-temperature polymer cover. The body is made of stamped steel while the contacts are made of silver-plated copper. The fuse is designed to be inserted into a fuse holder and connected to the circuit by two screws. The design of the FWPQ-500A ensures it is dust, water, and shock-proof, making it ideal for outdoor and industrial applications.

Rated Voltage and Breaking Capacity

The FWPQ-500A has a rated voltage of 600 volts AC/DC. The fuse can handle up to a maximum of 500 amps before it trips. It has a breaking capacity of 1000 amps at 60Hz, making it suitable for a variety of applications. The fuse is also able to withstand temperatures from -55°C to +135°C, making it suitable for outdoor installations.

Working Principle

The FWPQ-500A has an internal circuit that is designed to sense any change in current and quickly disconnect the circuit when it reaches a certain level. When the current in the circuit exceeds the specified level, the internal heat generated by the increased current melts a metal element inside the fuse which then breaks the circuit. This disconnects the circuit from the power source and prevents further current flow, thus protecting the fuse and the equipment connected to it from any damage.

Applications

The FWPQ-500A is commonly used in commercial, industrial, and residential applications. The fuse can be used in equipment such as HVAC systems, refrigerators, lighting, distribution panels, motor control centers, and more. The fuse is also suitable for use in outdoor applications such as solar energy systems. The main advantages of using the FWPQ-500A is that it is reliable, has a quick response time, and has a high breaking capacity, making it ideal for a variety of applications.

Conclusion

The FWPQ-500A is a fast-acting specialty fuse that can quickly disconnect an electrical circuit in the event of an overcurrent or short-circuit. The fuse is UL approved and can handle up to 500 amps of electrical current. It is dust, water, and shock-proof which makes it suitable for both indoor and outdoor applications. The fuse is suitable for use in commercial, industrial, and residential applications and is a reliable and cost-effective solution for protecting equipment from damage caused by overcurrent or short-circuit conditions.