Ceramic Tube Fuse 5*20 Fast-Acting RF1-20

Model NO.: RF1-20 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: 5.0x20 mm HS Code: 85361000 RF1-20 series(Ceramic tube)
RF1-20 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.

Unit:mm


Electrical  characteristics
 

Model	Rated current (A)	Rated voltage (V)	Max Voltage drop (mV)	Max persistence Power consumption (W)
RF1-20	500mA	250	1000	1.6
RF1-20	630mA	250	650	1.6
RF1-20	750mA	250	650	1.6
RF1-20	800mA	250	240	1.6
RF1-20	1A	250	200	1.6
RF1-20	1.25A	250	200	1.6
RF1-20	1.6A	250	190	1.6
RF1-20	2A	250	170	1.6
RF1-20	2.5A	250	170	1.6
RF1-20	3.15A	250	150	2.5
RF1-20	4A	250	130	2.5
RF1-20	5A	250	130	2.5
RF1-20	6.3A	250	130	2.5
RF1-20	8A	250	130	4
RF1-20	10A	125/250	130	4
RF1-20	12.5A	125/250	100	6
RF1-20	15A	250	100	6
RF1-20	16A	125/250	100	6

 
Current characteristics
 

Rated		Blowing time
		more than 100mA-6.3A	more than 6.3A-10A	more than 10A-16A
2.1In	Max	30min	30min	30min
2.75 In	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  
 
Certification

Model	Certification	Certification number	Current range
RF1-20	VDE	136760	1A-5A
RF1-20	TUV	J50078894-0001 J50078894-0005	6.3A-15A

 
RF1-20 series(Ceramic tube) Current-time curve







 
 

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