225FM

Applications:	Electrical, Industrial
Melting I²t:	3700
Size / Dimension:	1.500" Dia x 1.969" L (38.10mm x 50.00mm)
Package / Case:	Cylindrical, Blade Terminal (Bolt)
Mounting Type:	Bolt Mount
Breaking Capacity @ Rated Voltage:	200kA
Operating Temperature:	--
Approvals:	CE, UR
Class:	--
Features:	--
Series:	FM
Response Time:	--
Voltage Rating - DC:	500V
Voltage Rating - AC:	690V
Current Rating:	225A
Fuse Type:	Cartridge
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

225FM is a fuse made by Ferraz Shawmut, a leading manufacturer of specialty fuses. It is suitable for use in high power industrial electrical applications and meets UL, CSA, and IEC standards for safety and performance. It is designed to disconnect several circuits and isolate them so that they are not affected by each other.

Application Field

225FM fuses are used in many different applications, including industrial motor protection, battery protection, and electrical distribution systems. They are also commonly used in manufacturing processes, such as arc welding, plasma cutting, and soldering. In each application, the fuse is designed to quickly interrupt the circuit in the event of an overload, preventing damage to the equipment.

Working Principle

The 225FM fuse is a thermal-magnetic type fuse. It contains a plated copper element that melts when exposed to excessive heat, such as an overload. At the same time, an electromagnet is activated which quickly interrupts the circuit. The melting element and electromagnet do not reset, and the fuse must be replaced after being used.

Advantages

The 225FM fuse provides several advantages over other types of fuses. Firstly, it is a fast-acting fuse, meaning it can quickly disconnect the circuit. Secondly, it is a thermally safe fuse, meaning it does not rely on an increase in current to open the circuit. Thirdly, it does not require a reset, reducing costly downtime associated with a fault situation. Finally, it is slim and lightweight, making it easy to install.

Conclusion

The Ferraz 225FM fuse is a reliable and efficient solution for many high power industrial electrical applications. It offers fast-acting, thermally safe protection, does not require a reset, and is slim and lightweight. It meets all UL, CSA, and IEC standards for safety and performance, making it an ideal choice for electrical applications in many industries.

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