IDSR03.2T

Response Time:	Slow
Size / Dimension:	0.811" Dia x 5.000" L (20.60mm x 127.00mm)
Package / Case:	Cylindrical, Alarm Indicating
Mounting Type:	Holder
Breaking Capacity @ Rated Voltage:	200kA AC, 20kA DC
Operating Temperature:	--
Approvals:	CE, CSA, UL
Class:	RK5
Features:	Indicating
Applications:	Electrical, Industrial
Series:	POWR-GARD®, POWR-PRO® IDSR
Voltage Rating - DC:	600V
Voltage Rating - AC:	600V
Current Rating:	3.2A
Fuse Type:	Cartridge
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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IDSR03.2T Application Field and Working Principle

IDSR03.2T belongs to the category of electrical specialty fuses and is deemed as a reliable solution for overcurrent protection in residential and commercial applications. This type of fuse is designed with an adjustable time-delay feature that allows for some overcurrent flow before it trips, protecting both the circuit and any connected electronic devices from damage caused by drastic power fluctuations or shorts. The IDSR03.2T fuse operates on a simple working principle. The device consists of two conductors encased in a protective enclosure with a temperature-sensitive element that activates a switch when the temperature exceeds a preset threshold.The primary application of IDSR03.2T fuses is in low-voltage systems where overcurrent protection is necessary but additional protection from lightning strikes or power short circuits is unnecessary. This fuse is ideal for residential, commercial and industrial settings—such as motors, heating, and lighting systems—that require protection from normal overloads. It is suitable for applications with AC or DC circuits, and for non-hazardous and hazardous locations.The IDSR03.2T fuse is designed to operate reliably under a wide range of temperatures. The fuse rating and temperature resistance is generally stamped onto the fuse’s housing. This type of fuse also provides protection against rectification, as well as against backflow of circuits where one end is connected to a source of higher voltage than the other.The fuse has three main parts: the fuse element, the thermal switch, and the fuse base. The fuse element consists of two conductive strips sandwiched between two insulation layers. The thermal switch of the fuse works like a heat-sensitive switch – the current flowing through the fuse and the ambient temperature causes an increase in temperature of the element, setting off the thermal switch. When the temperature rises past a preset threshold, the thermal switch will trip or open the circuit, thereby cutting off all electricity to the circuit. The fuse base is designed to hold the fuse element securely in place and provide insulation and durability to the fuse.In order to ensure the safe functioning of the fuse, ensure that the load current does not exceed the fuse’s rated current. In addition, a circuit breaker of equal or greater rating than the fuse should be used in series with the fuse.The IDSR03.2T fuse is a reliable and cost-effective solution for overcurrent protection in low-voltage systems. It is designed to provide protection from both overloads and surge currents, and its adjustable time-delay feature allows for a degree of overcurrent to proceed before it trips, protecting sensitive components from sudden power fluctuations. Installation of this type of fuse in appropriate applications can provide long-term protection from electrical fires and injury.

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