BP/MDL-3

Series:	MDL
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Fuse Type:	Cartridge, Glass
Current Rating:	3A
Voltage Rating - AC:	125V
Response Time:	Slow
Package / Case:	3AB, 3AG, 1/4" x 1-1/4"
Mounting Type:	Holder
Breaking Capacity @ Rated Voltage:	--
Approvals:	--
Operating Temperature:	--
Color:	--
Size / Dimension:	0.250" Dia x 1.250" L (6.35mm x 31.75mm)

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Introduction

Fuses are an electrical safety device which protect circuits againstunacceptable currents. They are designed to blow open a circuit whenexcessive current flows through them so as to protect the appliances andpeople from danger. Fuses are usually composed of a metal strip that meltsand breaks an electrical circuit when an excessive current is drawn. Thistotally eliminates current from the system, avoiding a possibly hazardouselectrical accident.

BP/MDL-3 Fuses

The BP/MDL-3 Fuse is commonly known as a Body Plug Fuse. It is highlyspecialised and used strictly for testing purposes in the electronicsindustry. It consists of a very strong metal body, hermetically sealed, anddesigned to prevent any arcing or other electrical malfunctions which canoccur when testing sensitive equipment. It has a DC rating of 500V, andprovides a superior level of safety for sensitive test circuits.

Applications

The BP/MDL-3 Fuse has several applications in the electronics industry.It is used when testing electronic circuits and components, where aspark-free, reliable connection is required. The fuse can also be used inautomation systems, where a spark-proof protection is desired. It can beused as an isolation switch, assisting in protecting components in theallowance of fault currents and short circuits.The BP/MDL-3 fuses are also widely used in industrial control systems anddata communications. They are highly suitable for applications that requirehigh fault-current protection. In addition, the fused circuit connectionprevents equipment damage due to the buildup of heat under faultconditions.

Working Principle

When the BP/MDL-3 Fuse is placed into a circuit, it breaks down the circuitin the event of an overload. When a safe current limit is reached, thefuse will open the circuit and halt the flow of electricity. Thisbreakdown of the circuit can occur in a fraction of a second, and theresulting voltage drop causes the breakdown of the fuse element.As soon as the circuit is broken, the temperature of the fuse rises,causing it to melt. Once the fuse melts, the circuit remainsdisconnected and current cannot continue to flow. The circuit must thenbe manually reset and the fuse replaced.

Conclusion

The BP/MDL-3 Fuse is a highly specialized and reliable safety device usedin the electronics industry. It is used to safeguard circuits in testingand automation systems, industrial control systems, and datacommunications. The fuse will react instantaneously in the event of anovercurrent, opening the circuit and protecting the equipment fromdamage.

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