046703.5NR Circuit Protection

Response Time:	Fast
DC Cold Resistance:	0.0139 Ohms
Size / Dimension:	0.063" L x 0.032" W x 0.012" H (1.60mm x 0.81mm x 0.31mm)
Color:	--
Operating Temperature:	-55°C ~ 90°C
Approvals:	CSA, UL
Melting I²t:	0.4306
Breaking Capacity @ Rated Voltage:	35A
Mounting Type:	Surface Mount
Package / Case:	0603 (1608 Metric)
Series:	467
Voltage Rating - DC:	32V
Voltage Rating - AC:	32V
Current Rating:	3.5A
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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Fuses: 046703.5NR Application field and Working Principle

Fuses are a type of electrical safety device used to control and protect circuits against fire, over-current, and short-circuit hazards. Fuses provide the same protection as circuit breakers, but they can react to changes in current in a shorter time-frame than circuit breakers. 046703.5NR is an example of a high-amp fuse manufactured by Eaton, with a wide range of applications and an absorption value of 10,000 A. This guide will discuss the different application fields for this fuse, as well as its working principle.

Application Fields

The 046703.5NR is primarily used as an overcurrent device to provide circuit protection to certain types of electrical circuits such as distribution lines, motor control centers, and various other high-amperage applications. This type of fuse is UL Listed to UL 248-14, CSA Recognized, and tested conforms to MIL-F-16581. It can also be used as a circuit-interrupting device for AC as well as DC applications and is suitable for use in interrupting heavy-current short-circuit faults.

Working Principle

The 046703.5NR is a short-circuit protective device with high-amp rating. It comprises of a metal or alloy element, with a calibrated melting point, in series with an electrical circuit. When an overload or short-circuit condition is present, the element in the fuse melts, allowing a large quantity of electricity to pass through it. This current causes a surge current which melts the element further, creating an open circuit and de-energizing the circuit.The 046703.5NR is designed to react quickly to any possible current overloads or short-circuits. This is enabled by the design, which uses a frangible element, consisting of a strip of metal that is designed to quickly open when it passes its designed current level. This allows the fuse to reset itself, restoring circuit protection, without having to reset it by manually replacing the fuse.

Conclusion

The 046703.5NR fuse is a type of high-amp fuse designed to provide circuit protection and interrupt heavy-current short-circuit faults. It is suitable for AC and DC applications in a wide range of electrical circuits such as distribution lines, motor control centers, and a variety of high-amperage applications. The 046703.5NR offers quick response to any possible current overloads or short-circuits, and is UL Listed to UL 248-14, CSA Recognized, and tested conforms to MIL-F-16581.

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