0318.200MXP

Package / Case:	3AB, 3AG, 1/4" x 1-1/4" (Axial)
DC Cold Resistance:	3.02 Ohms
Size / Dimension:	0.275" Dia x 1.288" L (6.99mm x 32.72mm)
Color:	--
Operating Temperature:	-55°C ~ 125°C
Approvals:	CE, CSA, UL
Melting I²t:	0.0165
Breaking Capacity @ Rated Voltage:	35A
Mounting Type:	Through Hole
Series:	318
Response Time:	Fast
Voltage Rating - AC:	250V
Current Rating:	200mA
Fuse Type:	Cartridge, Glass
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

Fuses are one of the most common safety components in the electrical industry. They are typically used to protect circuits that are subject to sudden overloads and short circuits. The 0318.200MXP fuses are an important type of fuse, widely used for their specific strength, ease of installation and cost-effectiveness. This article provides a brief overview of the application field and working principle of the 0318.200MXP fuses.

Application Field

The 0318.200MXP fuses are designed to be used in residential and commercial applications. They are typically used to protect circuits that are subject to frequent overloads due to heavy motor loads, fan motors, air conditioning compressor motors, and any other load that requires a higher current rating. They are also used in a variety of light industrial applications such as industrial controls, air compressors, relays, inverters, transformers, and switching circuits. These types of fuses are also popularly used to protect sensitive electronics and are often used in medical equipment and computer systems. They have a high breaking capacity so they are suitable for circuit protection in higher voltage systems.

Working Principle

The 0318.200MXP fuses work on the principle of an autonomic response. When the current flowing through the circuit exceeds the predetermined safety limit, the fuse will blow open due to the sudden rise in temperature from the overload current. As a result, the circuit is immediately disconnected and the excess current is diverted away, avoiding any further damage to the circuit. The 0318.200MXP fuses are constructed of a brass bar that is wrapped around an open copper tube. A metal ribbon is placed over the copper tube, connecting the two ends of the brass bar. Inside the copper tube is a pressure sensitive insert, which is designed to react when a predetermined level of current is exceeded. When the current reaches a certain level, the insert expands and the metal ribbon is forced out, breaking the circuit.

Conclusion

The 0318.200MXP fuses are an important type of fuse used in residential and commercial applications. They provide an autonomic response that disconnects the circuit when the current exceeds the predetermined safety limit. Furthermore, they have a high breaking capacity that makes them suitable for use in higher voltage systems and sensitive electronics.

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