S500-2-R

Series:	S500
Packaging:	--
Part Status:	Active
Fuse Type:	Cartridge, Glass
Current Rating:	2A
Voltage Rating - AC:	250V
Response Time:	Fast
Package / Case:	5mm x 20mm
Mounting Type:	Holder
Breaking Capacity @ Rated Voltage:	35A
Melting I²t:	4.2
Approvals:	BSI, CCC, CSA, cURus, IMQ, SEMKO, VDE
Operating Temperature:	--
Color:	--
Size / Dimension:	0.205" Dia x 0.787" L (5.20mm x 20.00mm)
DC Cold Resistance:	0.043 Ohms

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S500-2-R Application Field and Working Principle

The S500-2-R is a type of fuse, an important device used in electrical circuits to protect and guard against sudden power surges. It’s a dual-element, time-delay fuse that can be used in a variety of applications as it is designed to tolerate extreme variations in current and overload conditions. The S500-2-R combines the time-delay properties of a slow-acting fuse, in addition to the overcurrent protection of a current-limiting fuse.

Overview of the S500-2-R

The S500-2-R is a 500A, Class RK5, dual-element, time-delay fuse. This fuse is suitable for applications that require both current limiting and time-delay protection, such as large motors, lighting, and high-power switching circuits. It is rated at a 500A current rating and rated voltage of 600VAC or 250VDC. It has a rejection-style design, meaning that it has an internal sleeve or vandal shield that prevents an incorrect fuse from being inserted into the base. The body of the fuse is made of a nonflammable material, which offers additional safety against short circuits and high temperatures.

Application Fields

The S500-2-R fuse can be used in a variety of applications. It is suitable for use in the electrical distribution systems of residential, commercial, and industrial buildings; solar and wind-power systems; and outdoor power systems. It is also used in the control circuits, motor controllers, and overload relays of large motors.

Working Principle

The S500-2-R fuse works by combining two elements: a current element and a time-delay element. The current element senses the amount of current flowing through the circuit and trips to interrupt the flow of electricity if the current exceeds the fuse’s rated current. The time-delay element works in a similar manner but also provides an additional layer of protection by allowing short-term overloads to pass with no interruption of power. If the overload exceeds the time-delay rating, the fuse will trip and interrupt the power flow. This provides protection against short circuits, overloads, and other dangerous power-surges that could cause damage to the circuit components.

Advantages of the S500-2-R

The S500-2-R fuse has several advantages over other fuses. It offers superior protection against overloads by combining both current-limiting and time-delay elements. It also has the added benefit of being rejection-style design, meaning that it will not accept an incorrect fuse into its base, making it very safe to maintain and handle. Additionally, it features a nonflammable body that adds an extra layer of safety when dealing with high-current applications.

Conclusion

The S500-2-R fuse is a dual-element, time-delay fuse that is suitable for a variety of applications. It is designed to tolerate extreme variations in current and overload conditions, and provides superior protection against short circuits, overloads, and other dangerous power-surges. It is rated at a 500A current rating and rated voltage of 600VAC or 250VDC, and offers a rejection-style design and a nonflammable body for added safety.

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