High Breaking Capacity Tube Fuse Time-Lag Axial Lead

Model NO.: RT2-20 (E) Type: Current Fuse Shape: Insert Fusing Device: Pop-up Solid Trademark: songshan Origin: Shanghai, China Breaking Capacity: High Usaga: Low Voltage Fusing Speed: T Standard: VDE Specification: 5.0x20 mm HS Code: 85361000 RT2-20 (E) series
Type RT2-20 (E), without being used with holders or clips, can be directly welded on the integrated circuit board, ceramic tube, high breaking, slow blow, lead fuse. The size is 5 x 20 ± 1.
The heat converted by the current when the fuse is energized, will make the increase of melt temperature, in the normal operating current or allowed overload current the heat generated by the current and the heat emitted by the melt, housing and surrounding environment through radiation, convection and conduction, can gradually reach equilibrium, if the heat can't keep pace with the heating speed, the heat will accumulate on the melt gradually, the melt temperature rises, once the temperature reaches the melting point, the heat will make it liquid or gas, thereby open the circuit of current, and thus safety protection to the circuit and person is achieved.
Because the product is filled with quartz sand, the melt temperature increases slowly, in the normal use of the case, the stability is higher!

Unit:mm
 


Electrical  characteristics

Model	Rated current (A)	Rated voltage (V)	Max Voltage drop (mV)	Max persistence Power consumption (W)
RT2-20(E)	1A	250	150	1.6
RT2-20(E)	1.25A	250	150	1.6
RT2-20(E)	1.6A	250	150	1.6
RT2-20(E)	2A	250	150	1.6
RT2-20(E)	2.5A	250	120	1.6
RT2-20(E)	3.15A	250	100	1.6
RT2-20(E)	4A	250	100	1.6
RT2-20(E)	5A	250	100	1.6
RT2-20(E)	6.3A	250	100	1.6
RT2-20(E)	8A	250	100	4
RT2-20(E)	10A	250	100	4

 
RT2-20 (E) Current characteristics

Rated		Blowing time
		1A-10A
2.1In	Max	2min
2.75 In	Min	600ms
	Max	10s
4 In	Min	150ms
	Max	3s
10 In	Min	20ms
	Max	300ms

 
Rated breaking capacity:150A  
 
 
 
RT2-20(E) Current-time curve



                                       Current(A)
 

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