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High Breaking Capacity Tube Fuse Time-Lag Axial Lead

Basic Info

Model No.:  RT2-20 (E)

Product Description

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
 
High Breaking Capacity Tube Fuse Time-Lag Axial Lead

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
High Breaking Capacity Tube Fuse Time-Lag Axial Lead


                                       Current(A)
 

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