What do the numbers mean on a fuse?
Car fuses are color coded by amp rating. For example, a standard blue fuse has a 15-amp rating, yellow is 20 amps and green is 30. You can buy them at any auto parts store and at well-stocked service stations. Note: If your new fuse blows soon after installing it, you could have problems in that circuit.
How do you read a fuse label?
The first letter(s) (TT, T, M, F, FF) tell you what type of fuse it is:
- FF = Fast Fast. Very Quick Acting. ( also known as Anti Surge)
- F = Fast. Quick Acting. ( also known as Anti Surge)
- M = Medium. “Normal” or Very Short Delay.
- T = Time. Time Delay or Slow Blow.
- TT = Time Time. Long Time Delay or Very Slow Blow.
What do the letters on a glass fuse mean?
The number and the A (may be mA) is the amp rating of the fuse. The L denotes that it is a low breaking capacity or glass fuse (H is High breaking capacity and is usually a ceramic package). A marking of F315mA would be a 315 milliAmp Quick Acting or Anti Surge, fuse.
What does 250V fuse mean?
The 250 volt rating means the fuse will safely open a 250 volt circuit without “exploding” or developing an interal arc which could maintain current flow longer than would be safe.
What does 250V P mean on a fuse?
250V = Max working voltage. P = RoHS compliant (lead free)
How many amps is a 250V fuse?
Semiconductor Fuse – 250 Volts The 250 volt semiconductor fuse is a current limiting, very fast-acting, fuse rated to 250 volts AC and up to 250 volts DC. Current ratings range from 1 to 2,500 amps. The maximum interrupting rating, is 200,000 amps AC and 100,000 DC.
What does 250V on Plug mean?
The 250 volt rating means the fuse will safely open a 250 volt circuit without “exploding” or developing an interal arc which could maintain current flow longer than would be safe. …
Can I use a 32V fuse vs 250V?
Will this 250v 4 amp fuse work to replace a 4amp 32v fuse (in an old amplifier/receiver)? Answer: 250V is the max current the fuse can take, it is fine as long as that rating is at or above the current being passed through the fuse, in this case 32V. Howver for amps, you should use slow blow.
How many amps is 250V fuse?
How many amps is a 250 volt fuse?
15 amp – 250 volts – Fuses – Power Distribution – The Home Depot.