MDA-25-R

Series:	MDA
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Fuse Type:	Cartridge, Ceramic
Current Rating:	25A
Voltage Rating - AC:	250V
Voltage Rating - DC:	125V
Response Time:	Slow
Package / Case:	3AB, 3AG, 1/4" x 1-1/4"
Mounting Type:	Holder
Breaking Capacity @ Rated Voltage:	1.5kA AC, 10kA DC
Melting I²t:	734.69
Approvals:	CE, CSA, UL
Operating Temperature:	--
Color:	--
Size / Dimension:	0.250" Dia x 1.250" L (6.35mm x 31.75mm)
DC Cold Resistance:	0.00305 Ohms

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Introduction

Fuses play a critical role in protecting electrical systems, and the MDA-25-R is a fuse that is designed specifically for this purpose. This fuse is a backup protection device that provides a current-limiting function for isolated phase bus and control power transformer applications. It is a cost-effective and reliable way to protect these systems from overloads and short-circuits. In this article, we will discuss the application field and working principle of the MDA-25-R fuse.

Application Field

The MDA-25-R fuse is designed specifically for use in transformer applications. It is designed to protect isolated phase bus and control power circuits from short-circuits or overloads. It is rated for continuous current up to 25A and can be used in any transformer application that requires a short-circuit protection device. Additionally, this fuse is UL-listed and meets IEC and IEEE standards, making it suitable for a variety of transformer applications.

Working Principle

The MDA-25-R fuse uses a thermal-magnetic design to protect against both overloads and short-circuits. When the rated current is exceeded, the internal heating element of the fuse will heat up, causing the coil of the fuse to expand and open the circuit. This will help to protect the transformer from any overloads. In the case of a short-circuit, the coil will immediately expand to the intended size, and the fuse will open the circuit, interrupting the current and protecting the transformer.

Conclusion

The MDA-25-R fuse is a reliable and cost-effective fuse designed specifically for transformer applications. It is approved to IEC and IEEE standards, and is UL-listed, making it perfect for a variety of transformer applications. The fuse uses a thermal-magnetic design to protect against both overloads and short-circuits. With its reliable protection and cost-effectiveness, the MDA-25-R is the perfect solution for your transformer protection needs.

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