MDL-2-R

Package / Case:	3AB, 3AG, 1/4" x 1-1/4"
DC Cold Resistance:	0.116 Ohms
Size / Dimension:	0.250" Dia x 1.250" L (6.35mm x 31.75mm)
Color:	--
Operating Temperature:	--
Approvals:	CE, CSA, UL
Melting I²t:	62.3
Breaking Capacity @ Rated Voltage:	100A
Mounting Type:	Holder
Series:	MDL
Response Time:	Slow
Voltage Rating - AC:	250V
Current Rating:	2A
Fuse Type:	Cartridge, Glass
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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MDL-2-R Application Field and Working Principle

Fuses are an essential tool in electrical engineering, providing a safe and reliable method for protecting electrical circuits. MDL-2-R fuses are a type of cartridge fuse specifically used for AC locations in low voltage applications. They are designed to provide short circuit protection, withstand high levels of temperature, and provide superior arc flash protection and electrical insulation. This article will discuss the application field of MDL-2-R fuses and their working principle.

Application Field

MDL-2-R fuses are specifically designed for medium-voltage electrical systems in low-voltage applications, such as those used in buildings, factories and industrial sites. These fuses are intended for use at AC service locations up to 600 V and are available in various sizes. MDL-2-R fuses are also available with a variety of current ratings, ranging from 2 to 100 amperes.MDL-2-R fuses have been designed to provide short circuit protection while withstanding high temperatures in low-voltage applications. They provide superior arc flash protection and offer superior electrical insulation. Additionally, these fuses are rated for a wide variety of ambient temperatures, ranging from -20°C to +70°C (4°F to 158°F).

Working Principle

MDL-2-R fuses are designed to protect low-voltage electrical circuits from overloads, short circuit currents, and ground faults. The working principle of the fuse is simple. When the current flowing through the circuit exceeds the pre-set rating of the fuse, the fuse wire melts, isolating the circuit. This prevents the circuit from further harm, protecting the system from further damage.The design of MDL-2-R fuses includes an arcing chamber that is designed to provide superior arc flash protection and meet the highest safety regulations. This chamber also serves to reduce the voltage drop across the fuse, allowing for higher levels of protection and performance. MDL-2-R fuses also have a safety lockout feature that prevents the circuit from being re-energized if the fuse blows. This feature ensures that the circuit is not energized until the fuse is replaced.

Conclusion

MDL-2-R fuses are specifically designed for low-voltage applications in electrical systems. These fuses provide superior short circuit protection and arc flash protection, while offering excellent insulation. The working principle of these fuses is simple: when the current exceeds the pre-set rating of the fuse, the wire melts and isolates the circuit. This prevents the system from further harm, protecting the system from further damage.

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