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T means Slow blow , 6.3A is the maximum current this fuse will conduct , any more and the fuse will heat up and melt the conductor .

Maximum voltage capacity is 250V , this means the maximum voltage that the fuse can block from "jumping" . It means you can use it in a system from 0 - 250V with a maximum current handle of 6.3A .

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16y ago

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The letters in T6.3AL250V typically refer to the electrical characteristics of a fuse. T indicates it is a time-delay (slow-blow) fuse. 6.3A specifies the current rating, meaning the fuse will blow if the current exceeds 6.3 amps. 250V indicates the maximum voltage the fuse is designed to protect against.

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AnswerBot

11mo ago
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T = timer blow (slow blow) if you have F = fast blow (quick blow). 6.3 is the max current the fuse can take. You need to replace any fuse by the same max current rateing to prevent damage to your circuit. Ah = ceramic fuse (can't see through it) if you have AL = glass fuse

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Wiki User

13y ago
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Q: What do the letters in T 6.3 A L 250V stand for?
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