0440.500WRA Circuit Protection

Response Time:	--
Size / Dimension:	0.126" L x 0.064" W x 0.033" H (3.20mm x 1.63mm x 0.84mm)
Color:	--
Operating Temperature:	-55°C ~ 150°C
Approvals:	CSA, UR
Melting I²t:	0.02642
Breaking Capacity @ Rated Voltage:	50A
Mounting Type:	Surface Mount
Package / Case:	1206 (3216 Metric)
Series:	440A
Voltage Rating - DC:	63V
Voltage Rating - AC:	63V
Current Rating:	500mA
Fuse Type:	Board Mount (Cartridge Style Excluded)
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction of 0440.500WRA

0440.500WRA is a kind of AC fuses that commonly used in household appliances, industrial equipment, office machines, electrical control instrument and other electrical wiring systems. This type of fuse is primarily used for overcurrent protection due to its low I²t rating and fast-acting response.

Application Field

0440.500WRA fuses are suitable for a wide variety of residential and commercial settings. They are often used in air conditioners, microwave ovens, water heaters, refrigerators, electric motors and transformers, motor starters, computer applications, and general circuit protection. As the 0440.500WRA model is one of the smallest fuses available, it can be used in tight spaces that typical fuses are unable to fit.

Working Principle

The 0440.500WRA AC fuses are equipped with a current-limiting feature and they are UL/CUL certified. When an overcurrent or short circuit occurs in the protected circuit, the 0440.500WRA fuse will blow and open the circuit, removing the hazardous overcurrent from the circuit. When the overcurrent situation is corrected, the fuse must be replaced with a new one to restore power to the protected circuit. The 0440.500WRA fuse consists of a metal strip or wire connecting two metal clips. The strip or wire melts when the current passes through it, causing an open circuit and protecting the equipment connected to it. The current limiting feature of the 0440.500WRA AC fuse helps to protect against arc flashes and other hazardous conditions related to high current draw.

Conclusion

0440.500WRA fuses offer a reliable solution for fast-acting protection of residential and commercial circuits. Their compact size allows them to be used in tight spaces, and their current limiting feature helps to ensure safety. When replacing an 0440.500WRA fuse, it is important to verify that the new fuse ratings are equal or lower than the ratings of the original fuse.

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