0311012.H

Series:	311
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Fuse Type:	Cartridge, Glass
Current Rating:	12A
Voltage Rating - AC:	32V
Response Time:	Fast
Package / Case:	3AB, 3AG, 1/4" x 1-1/4"
Mounting Type:	Holder
Breaking Capacity @ Rated Voltage:	--
Approvals:	CSA, UL
Operating Temperature:	--
Color:	--
Size / Dimension:	0.250" Dia x 1.250" L (6.35mm x 31.75mm)

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Fuses

One of the most important safety components of electric power equipment is the fuse. Fuses can be divided into various types including 0311012.H. This type of fuse is designed to protect circuit components from high instantaneous currents, damaging surges, and other electrical problems.

0311012.H Application Fields

0311012.H fuses are commonly found in industrial, commercial, and residential applications, and are also suitable for a variety of electrical servicing types. Generally, these fuses are designed for line protection of vacuum system. Generally, when used in residential applications, this fuse is also suitable for protection in high-usage electrical lines. In industrial applications, the 0311012.H fuse is suitable for medium-to-high powered electrically-driven machinery and for protection of transformer installations. These fuses have also been used successfully in power protection for high power equipment, particularly in power supply systems.

Working Principle

The basic design principle of all 0311012.H fuses is the same. The fuses operate according to the heat-sensitive triggering principles of its fuse disk and fusible link. A material with higher melting temperature needs more energy or a higher current to melt, whereas a material with a lower melting temperature melts easily with a smaller current.Under normal operating conditions, the 0311012.H fuse\'s heat sensitive triggering principle operates with a low current. The fuse disk, a conductive metal tube filled with a fusible alloy, gets heated up and melts in the presence of a high current, thus interrupting the flow of current and protecting the circuit.At the same time, a fusible link attached to the disk also melts and disconnects the contacts. However, the fusible link also reacts to a sustained low current level, providing protection against short-circuits. The fusible link does not have enough energy to melt at normal load levels, except in cases of sustained overload conditions.In addition, the fuse also has a built-in protection against over-voltage and surges. This is achieved through the use of an insulating material around the fuse disk, which prevents the build-up of electric charge on the fuse assembly.Finally, the time-delay mechanism of the fuse ensures that the 0311012.H fuse will not excessively react to inrush currents and will thus better protect circuits from being damaged by them.

Conclusion

The 0311012.H fuse is a versatile and reliable protection device. It is ideal for a wide range of industrial, commercial, and residential applications. Its heat-sensitive triggering principle, time-delay mechanism, and built-in protection features offer excellent protection from short-circuits, surges, and over-voltage.

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