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How do fuse ratings work?
The voltage rating of a fuse is a function of its capability to open a circuit under an overcurrent condition. Specifically, the voltage rating determines the ability of the fuse to suppress the internal arcing that occurs after a fuse link melts and an arc is produced.
What does fuse amp rating mean?
An amp or an ampere rating is the current rating for a specific fuse. The current rating of a fuse identifies the allowable current that the fuse can carry without opening under specified test conditions. Each fuse is marked with its current rating.
What is the difference between watt hours and amp hours?
Watt-hours and amp-hours are both units for electric charge. 1 watt-hour is defined as 1 watt of power expended for 1 hour. 1 amp hour is defined as 1 amp of current expended for 1 hour.
How do you measure the amp hour of a fuse?
The closest one may come to amp-hour rating a fuse is to measure its time to blow in terms of current carried. 1 minute at 5A = 1/60 hr x 5A = 1/12th amp hour. But that is useless as a rating as it only applies at 5A as blow time and current are not linearly related.
What does the ampere rating on a fuse mean?
An amp or an ampere rating is the current rating for a specific fuse. The current rating of a fuse identifies the allowable current that the fuse can carry without opening under specified test conditions.
How are fuses rated in time to blow?
All normal fuses are rated in amps fusing current. The closest one may come to amp-hour rating a fuse is to measure its time to blow in terms of current carried. 1 minute at 5A = 1/60 hr x 5A = 1/12th amp hour.
How are fuses rated in terms of current carried?
All normal fuses are rated in amps fusing current. The closest one may come to amp-hour rating a fuse is to measure its time to blow in terms of current carried. 1 minute at 5A = 1/60 hr x 5A = 1/12th amp hour. But that is useless as a rating as it only applies at 5A as blow time and current are not linearly related.