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Glass Tube Fuse 5*20 125V/150V Fast-Acting RF1-20/125V/150vseries

Place of Origin: 
Shanghai, China

Basic Info

Model No.:  RF1-20/125V/150Vseries

Product Description

Model NO.: RF1-20/125V/150Vseries

Type: Current Fuse

Shape: Insert

Fusing Device: Pop-up Solid

Trademark: songshan

Origin: Shanghai, China

Breaking Capacity: Low

Usaga: Low Voltage

Fusing Speed: F

Standard: VDE

Specification: 5x20 mm

HS Code: 85361000


RF1-20 (H) ceramic tube high breaking fast-acting fuse, with size: Ф5×20±0.5, the products conform to TUVJ50078894 standard. This product is not with lead, and needs to be fitted with a holder or clip.

This product is: fuse installed in the porcelain tube is filled with quartz sand, which acts as the arc extinguishing medium. The particle size of quartz sand has a great influence on the arc extinguishing performance, and the particle diameter is in the range of 0.2~0.3mm. When the overload current or short-circuit current goes through the fuse, the fuse melts and arc is generated in the tube, the quartz sand has a strong cooling effect on arc and deionization, the arc soon extinguished. In breaking up the large short-circuit current; usually the arc can be extinguished before the short circuit current has not reached the maximum value. In the whole process of breaking current, there is the phenomenon of silent light, no ionized gas, and high breaking capacity.


Glass Tube Fuse 5*20 125V/150V Fast-Acting RF1-20/125V/150vseries

Electrical characteristics

Model Rated current
Rated voltage
Voltage drop
Power consumption
RF1-20 500mA 125/150 1000 1.6
RF1-20 630mA 125/150 650 1.6
RF1-20 800mA 125/150 240 1.6
RF1-20 1A 125/150 200 1.6
RF1-20 1.25A 125/150 200 1.6
RF1-20 1.6A 125/150 190 1.6
RF1-20 2A 125/150 170 1.6
RF1-20 2.5A 125/150 170 1.6
RF1-20 3A 125/150 170 2.5
RF1-20 3.15A 125/150 150 2.5
RF1-20 4A 125/150 130 2.5
RF1-20 5A 125/150 130 2.5
RF1-20 6.3A 125/150 130 2.5
RF1-20 7A 125/150 130 4
RF1-20 8A 125/150 130 4
RF1-20 10A 125/250 130 4
RF1-20 12.5A 125/250 100 6
RF1-20 15A 125/150 100 6
RF1-20 16A 125/250 100 6
RF1-20 20A 125/150 100 6

Current characteristics

Rated Blowing time
more than 100mA-6.3A more than 6.3A-10A more than
2.1In Max 30min 30min 30min
Min 50ms 50ms 50ms
Max 2s 2s 3s
4 In Min 10ms 10ms 10ms
Max 300ms 400ms 400ms
10 In Max 20ms 40ms 50ms

Rated breaking capacity

35A or 10In whichever is greater


Model Certification Certification number Current range
RF1-20 TUV J50287670-0001 100mA-20A

RF1-20/125V/150Vseries Current-time curve

Glass Tube Fuse 5*20 125V/150V Fast-Acting RF1-20/125V/150vseries

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