Ceramic Tube Fuse 5*20 Fast-Acting High-Breaking RF1-20 (H)

Model NO.: RF1-20(H) Type: Current Fuse Shape: Insert Fusing Device: Pop-up Solid Breaking Capacity: High Usaga: Low Voltage Fusing Speed: F Standard: VDE RF1-20(H) series
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.

Unit:mm
 

 
 Electrical  characteristics

Model	Rated current (A)	Rated voltage (V)	Max Voltage drop (mV)	Max persistence Power consumption (W)
RF1-20(H)	500mA	250	1800	2.5
RF1-20(H)	630mA	250	1500	2.5
RF1-20(H)	800mA	250	1200	2.5
RF1-20(H)	1A	250	1000	2.5
RF1-20(H)	1.25A	250	800	4
RF1-20(H)	1.6A	250	600	4
RF1-20(H)	2A	250	500	4
RF1-20(H)	2.5A	250	400	4
RF1-20(H)	3.15A	250	350	4
RF1-20(H)	4A	250	300	4
RF1-20(H)	5A	250	250	4
RF1-20(H)	6.3A	250	200	4
RF1-20(H)	8A	250	200	4
RF1-20(H)	10A	250	200	4
RF1-20(H)	12A	250	180	4
RF1-20(H)	12.5A	250	180	4
RF1-20(H)	16A	250	180	6

 
RF1-20(H) Current characteristics

Rated		Blowing time
		500mA-4A	More than 4A-6.3A	More than 6.3A-10A	More than 10A-16A
2.1In	Max	30min	30min	30min	30min
2.75 In	Min	10ms	10ms	40ms	40ms
	Max	2s	3s	20s	20s
4 In	Min	3ms	3ms	10ms	10ms
	Max	300ms	300ms	1s	1s
10 In	Min	20ms	20ms	30ms	40ms

 
Rated breaking capacity:1500A 
 
Certification

Model	Certification	Certification number	Current range
RF1-20(H)	TUV	J50078894-0003	8A-12A

 
RF1-20(H) series Current-time curve


                                                

                                                               Current(A)
 

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