80408000000 Circuit Protection

Package / Case:	Radial, Box
DC Cold Resistance:	0.1887 Ohms
Size / Dimension:	0.488" L x 0.252" W x 0.362" H (12.40mm x 6.40mm x 9.20mm)
Color:	--
Operating Temperature:	-40°C ~ 125°C
Approvals:	CQC, KC, UL, VDE
Melting I²t:	12
Breaking Capacity @ Rated Voltage:	150A
Mounting Type:	Through Hole
Series:	804
Response Time:	Slow
Voltage Rating - AC:	250V
Current Rating:	800mA
Fuse Type:	Board Mount (Cartridge Style Excluded)
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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Introduction of 80408000000 Fuses

Fuses are safety devices used in electrical circuits to protect circuitry and equipment in the event of an over current or short circuit event. A fuse is a device which limits the current in a circuit or opens the circuit when a predetermined current is exceeded. 80408000000 fuses, also known as EE Type, EP Type, and ET Type fuses, are a type of semiconductor fuse designed for use in medium voltage power supplies. They are typically used in low voltage power supplies, telecommunication, and industrial control circuits.

Application Field

80408000000 fuses are mainly used in medium voltage power supplies, low voltage power supplies, telecommunications, and industrial control circuits. Due to their high amperage rating, they are suitable for use in applications that require resilient power distribution, including industrial, commercial, and military applications. In the low voltage power supply, they are used to protect circuits from over current and short circuits in a variety of ways, such as:direct over current protection; overcurrent protection for single-phase inductive loads; overvoltage protection for single phase inductive loads; and ground fault protection. They are also used to protect circuits that may be overloaded because of defective and aging wiring.In telecommunications, 80408000000 fuses are typically used in telephone networks and digital communication networks to protect them from over current or short circuit events. They are also used to protect surge protection devices, which helps to reduce the risk of power surges damaging the circuit. In industrial control circuits, 80408000000 fuses are used to protect heavy-duty motor circuits and circuits with higher power requirements. They can protect against the large inrush currents associated with such applications, and are designed to open quickly in the event of overload or short circuit conditions.

Working Principle

80408000000 fuses work by utilizing a necked-down internal element that melts quickly when the current exceeds a predetermined level. When the current exceeds the predetermined level, the melting of the internal element causes an interruption in the current flow, breaking the circuit and preventing it from becoming overloaded or overheating. As the current in the circuit increases, the temperature of the necked-down internal element increases as well. Once the predetermined maximum current is exceeded, the melting point of the element is reached, and the element melts quickly, breaking the circuit. The fuse is designed to open quickly and efficiently, preventing any further damage to the circuitry.

Conclusion

80408000000 fuses are a type of semiconductor fuse designed for use in medium voltage power supplies. They are suitable for use in applications that require resilient power distribution, such as low voltage power supply, telecommunications, and industrial control circuits. They work by utilizing a necked-down internal element that melts quickly when the current exceeds a predetermined level, breaking the circuit and preventing it from becoming overloaded or overheating.

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