0466.375NR Circuit Protection

Response Time:	Fast
DC Cold Resistance:	0.35 Ohms
Size / Dimension:	0.125" L x 0.060" W x 0.023" H (3.18mm x 1.52mm x 0.58mm)
Color:	--
Operating Temperature:	-55°C ~ 90°C
Approvals:	CSA, UL
Melting I²t:	0.0028
Breaking Capacity @ Rated Voltage:	50A
Mounting Type:	Surface Mount
Package / Case:	1206 (3216 Metric)
Series:	SlimLine™ 466
Voltage Rating - DC:	125V
Voltage Rating - AC:	125V
Current Rating:	375mA
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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0466.375NR Application Field and Working Principle

Fuses have long been a popular and effective means of protection utilities, motor controls, lighting, energy systems, and industrial equipment from damages due to overcurrent. Conventional fuses are often designed using the most simple housing designs, knife-blade connectors, and screw-on terminals. However, both safety of use and productivity can be improved by modernizing the fuse components, and the 0466.375NR from Littelfuse is a prime example of such a modernization of fuse technology.The 0466.375NR is a type of low voltage DC solid-state fuse, which is designed to protect electrical circuits and wiring harnesses from severe overcurrent and short-circuit conditions. This fuse has a current rating of 8 amperes, and it is designed to operate at a voltage of less than 30V DC. It has a self-reset feature that prevents the fuse from needing to be physically reset after an overcurrent or short circuit event, which adds to its safety and convenience. The housing of the 0466.375NR is constructed of a highly durable thermoplastic material. The self-locking terminal block ensures that the fuse remains connected securely even during equipment maintenance. The 0466.375NR operates according to a bi-metallic temperature-sensitive system. This system is composed of two pieces of metallic material that are secured together between the fuse terminals. The two metals used are of different coefficients of thermal expansion and therefore react differently to heat produced by current flow. When the current exceeds the rated load, the release of heat triggers the bi-metallic element to bend, effectively cutting off the electrical supply to the circuit. The fuse will remain in the open circuit state until it cools and the bi-metallic element returns to its original state. The 0466.375NR fuse is a viable solution for applications where overcurrent protection and minimal downtime are essential. It is ideal for use in battery chargers, solid-state relays, DC lighting circuits, and rechargeable power supplies. It is an excellent alternative to standard thermal-type fuses, as it does not require manual resetting, which can be both time-consuming and hazardous. The 0466.375NR from Littelfuse is a reliable, cost-effective solution for providing overcurrent protection in many DC applications. Its self-resetting feature prevents downtime, and the reliable construction of the thermoplastic fuse enclosure ensures optimal safety. It is the best option for ensuring reliable protection against hazardous current and short circuits in many applications.

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