A Classification System for Fuses by Application and Feature
Fuse is a key component used for circuit protection, mainly to cut off the current when the circuit is overloaded or short circuited, in order to protect the safety of electrical equipment. According to different applications and characteristics, fuses can be divided into the following three categories:
1. Plug in fuse: This type of fuse is usually used in cars and some household appliances. Its characteristics are easy installation and easy replacement. The plug-in fuse has a rated current value, and the selection needs to be matched according to the operating current of the circuit.
2. Spiral fuse: This type of fuse is commonly found in old-fashioned electrical equipment, characterized by the fuse being wrapped around a ceramic core and then wrapped in a layer of glass or plastic shell. The replacement of spiral fuses is relatively complex, but they have strong resistance to high voltage and high current.
3. Surface mount fuses: With the development of electronic technology, surface mount fuses are widely used in various electronic products due to their advantages such as small size and easy installation. Surface mount fuses usually use SMT technology, which can be directly soldered onto circuit boards, saving space and improving production efficiency.
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The lifetime of a current fuse is influenced by several factors. Firstly, the current rating of the fuse plays a crucial role. If a fuse is constantly operating near or at its rated current, it will experience more heat buildup and stress over time, which can shorten its lifetime.
The Impact of Fuse Aging on Usage
After the fuse ages, there is no danger of generating the current that should be cut off and the fuse not blowing. The aging of a fuse is equivalent to a decrease in the rated value (current) rather than an increase, resulting in the circuit being cut off at a small overload current or pulse.
Self Recovery Performance and Working Process of Self Recovery Fuses
Traditional fuses are installed in circuits. When an overcurrent occurs due to a fault or abnormality in the circuit, the fuse itself melts to cut off the current and protect the circuit. However, due to the fact that traditional fuses can only protect once and need to be replaced if burned out, some products still cannot resume operation after troubleshooting or abnormal overcurrent disappears. As a new type of overcurrent protection device, the self-recovery fuse has the function of automatic recovery, which can meet the performance requirements of similar applications.
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型号- VF392,VBS1051,VRA,VFRVL,VGC SERIES,2XVBS1749,VF391,AHN,VSS SERIES,BS883C,BS883B,VRH,BS88,VRK,VFSMD1206,VF218-P,VRJ,VFLT,VRL,VJF,BS884B,06LH,VRP,BS884A,VFSMD1210,06LF,VRX,VR10F/T,VFLR,VJT,VFSL,12SF,BS88EB,LO RHO VFSMD1206,VFSR,2XVBS3655,TPS SERIES,VBS3627,VRK5,VKF,VSP-LLXXXAXXVXX-X,VSP,VBS1727,VT1,VT3,VT2,VT5,VF318,VT4,SMP,VSS,VCF,VF312,VF313,VF314,VF315,VF275,VKT,VF370,04SF,LO RHO VFSMD1812,VF372,LO RHO VFSMD0603,VCT,VFVT,BS881C,VTF,BS881B,VF217-P,BS881A,12LH,VBS3655,12LF,BS881F,08SF,VFVL,VF881F,VFSMD2920,VF804,2D,2E,VFRX 60,TPS,VF400,VF242,VF881,VSP-LXXXAXXVXX-X,VDXXXAXXVXX-X,VLT,VF216SP,BS882C,VFUSB,PV160,BS882A,VFSMD0603,VFSMD1812,BS882F,VF229-P,VBS1749,BS883A,VA SERIES,PV10,VDC27,4SF-H,TPS 2A-1600A,VC20,VF235-P,VC22,4SF,VDC20,VGC14,VF239-P,VF171-P,VGC10,PV14,VDC22,VFHT,VF229,VF504,VF505,VF224,VF463,VF464,VF215SP,VDC36,VC10,VF224-P,BS88 SERIES,BS880B,VA,VD,VGC22,VD SERIES,VGC,VF877,VF239,VC14,VF477,VF235,VF874,NH,VF875,VF876,PV355,PV630,VGT,2XVBS3627,NT,LO RHO VFSMD0402,VF171,AFN,AXT-A,VFRG,LO RHO VFSMD1210,VFRH,06SF,VF606,VD SENES,VF448,VF449,VF324,VFRT,VF325,NT SERIES,VFRU,VF326,VFRV,VF443,NH SERIES,VDC14,VF242-P,VFSMD0805,VBS1028,VGC8,VF217,VF218,VFRX 90,LO RHO VFSMD0805,VF215,VF216,VF451,VF452,AXT,VF453,VF454
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型号- 06F,3S,C0015302Z,C0040302Z,3T,10C,06T,C0060303Z,4F,KSD9700,C0030301Z,6CH,C7500301Z,4T,C0015301Z,C0070303Z,4TE,C0040303Z,8TE,C0025302Z,5C,KSD305,5F,5G,C4000302Z,5H,9L,KSD301,C2000302Z,C0030302Z,10FV,C0020301Z,5S,C7500302Z,5T,C0010302Z,24F,12F,32F,C0080303Z,5SH,6B,6C,C0025301Z,6F,6G,24T,6H,12T,C3000301Z,C4000301Z,C5000301Z,2F,C2000301Z,C0030303Z,32T,R3-13,5GH,R3-12,R3-11,5CH,6S,C0020302Z,6T,2T,5TE,XC-1,BS1362,C0010301Z,C3000302Z,5TR,3F,3G,C5000302Z,C1000302Z,XC-2,C0050303Z,C0035302Z,C0020303Z
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型号- 1812L,471,230,472,473,232,233,234,235,477,874,875,876,239,877,2016L,461E,485,LORHO,400,157T,369,804,807,808,600R,437 SERIES,USBR,370,251,372,373,494,253,374,2205,SL,0603L,0805L,ST,382,262,383,263,385,265,266,267,268,269,303,429,1210L,LR,LT,391,1206L,392,272,273,274,395,154,275,396,397,398,157,278,399,219XA,279,312,950,313,30R,159,314,435,315,437,438,318,LORHO PTC,160,285,440,250S,441,250R,322,443,202,203,324,VL,325,446,326,447,448,449,208,209,VT,16R,451,452,332,453,154T,454,213,456,215,72R,216,458,60R,217,459,218,977,460,461,220,462,464,465,224,466,225,467,468,501,469,229,505,506,2920L,508
The Installation Precautions for Current Fuses
The installation of current fuses is crucial for ensuring the safety and proper functioning of electrical circuits. Here are some important installation precautions to keep in mind.
Calculation Method for Melt Current of Fuse Fuses
The current of a fuse includes two aspects, one is the rated current of the fuse tube, and the other is the rated current of the melt, which cannot be confused.
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型号- 142.5395.6202,142.5395.6102,142.5395.6222,142.5395.6122,BF2 SERIES,142.5395.XXXX,142.5395.6302,142.5395.6172,142.5395.6252,142.5395.6152,BF2
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The fuse is connected in series with the circuit, installed vertically, and installed on each phase line； Fuses are not allowed to be installed on the neutral line of a two phase three wire or three-phase four wire circuit.The power input terminal of the spiral fuse should be connected to the center point of the base, and the output wire should be connected to the threaded shell； This insurance is used in places with vibrations.
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型号- 142.5631.6202,142.7010.6152,142.5631.6102,142.0020.XXXX,142.5631.6122,BF1 SERIES,142.7010.5802,142.7010.5602,142.7010.5702,142.7010.5402,142.7010.5502,142.7010.5302,142.7010.XXXX,142.5631.6152,BF1,142.5631.5802,142.5631.5702,142.7010.6102,142.7010.6202,142.5631.5402,142.7010.6122,142.5631.XXXX,142.5631.5302,142.5631.5602,142.5631.5502
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