0473004.MRT1HF

Response Time:	Slow
DC Cold Resistance:	0.0194 Ohms
Size / Dimension:	0.135" Dia x 0.280" L (3.43mm x 7.11mm)
Color:	--
Operating Temperature:	-55°C ~ 125°C
Approvals:	CSA, PSE, UR
Melting I²t:	35
Breaking Capacity @ Rated Voltage:	50A
Mounting Type:	Through Hole
Package / Case:	Axial
Series:	PICO® II 473
Voltage Rating - DC:	125V
Voltage Rating - AC:	125V
Current Rating:	4A
Fuse Type:	Board Mount (Cartridge Style Excluded)
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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0473004.MRT1HF Fuses

Fuses are safety appliances used to protect electrical circuits against overload and short-circuit damage. Overcurrent in the circuit can be caused by overloading, electrical faults, lightning, or any other transient malfunction. Fuses interrupt the flow of current in the circuit so as to prevent harm and damage to the electrical system. In this article, we will discuss the application field and working principle of 0473004.MRT1HF Fuses.0473-004.MRT1HF Fuses are UL listed and certified breaking capacity. These yellow body fuses have been designed for load centers and circuit breakers. They come with a time-delay mechanism that is triggered at the set current levels. Their current rating is 100A AC at the rated voltage of 250V AC, thus providing superior protection from overvoltage situations.0473-004.MRT1HF Fuses can be used for a broad range of applications including motor control, lighting, and heating circuits, home appliance motors, HVAC systems, domestic and industrial transformers, etc. Away from residential areas, these fuses can be employed to protect sensitive electronic components from overvoltage, overload, short-circuit, and other transient model faults.Their working is based on the rapid destruction of a metal conductor due to local heating produced by an electric current passing through it. The dynamic resistance of the metal conductor increases with increasing temperature, thus constricting the current flow in the circuit. This chain of events happen at a certain limit of current rise hence providing protection from damage and hazards.When employing 0473-004.MRT1HF Fuses, it is important to ensure that the fuse size and rating matches the applications. Overrating the fuse can cause the fuse to be inefficient in its response to short-circuit current. Similarly, an undersized fuse will not offer the required protection as the fuse itself will become the path for the current to pass through. This leads to overheating and eventually occasional breaking-down of the fuse.To address this, many manufacturers now offer a hybrid system that combines fuses with circuit breakers. These systems offer additional safety features in order to prevent accidental overloading. For example, some hybrid systems will cut the power supply when they detect overcurrent in the circuit which is not more than the fuse’s rating. This provides additional protection and eliminates the need for replacing the fuse each time it trips.In conclusion, 0473-004.MRT1HF Fuses are reliable safety devices with numerous protective features. They are suitable for a wide range of applications and can be used to protect electrical circuits from overload and short-circuit conditions. The fuse’s rated current must match the circuit’s current requirement to ensure efficient protection. Hybrid systems that bridge the gap between circuit breakers and fuses are also available in the market for additional safety.

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