High Speed fuse、Stud‐mount fuse、High Pot Fuse
The High Speet Fuse have 380V/500V/700VDC/AC,Can be used in AC or DC Powers,Have High Speed fuse,Stud‐mount,Excellent DC performance,50KV。
The size of the parts as bellow:
Dimensions, mm
Test Specification:
Test in 23℃,
Tested in Current (A)
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The time of fuse melted
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>50A,<400A
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Min
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MAX
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Rated current 110%
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4H
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-
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Rated current200%
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1S
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300S
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Rated Current300%
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0.2S
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30S
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Rated current 500%
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0.05S
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1S
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The specification of Time –Current Characteristic Curves):
Time –Current Characteristic Curves
A fuse is easily influenced by its surrounding atmosphere and by the power of the continuous electriccurrent passing through it. To lengthen the life span of your fuses, ensure that your target workload is less than 65% of their rated current.
When using a fuse in a DC circuit, depending on the circuit condition, you may have to use a higher rated voltage fuse than the circuit voltage. (See time constant graph below)
If there is a possibility of due to an over loaded current which is in dot‐line zone of TC curve, the fuse should be used in conjunction with other protectors.
When the applied current is lower than the rated current, you can get the value of the power loss as follow: Power loss of rated current * Coefficient αof the applied current.
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