What do fuse markings 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). Taking the example above a T2AL250V fuse is a 2 Amp, Time Delay glass fuse rated for 250 Volts.
What markings are required on fuses?
Small fuses generally identify the element speed using markings such as F, M, T etc, whilst larger fuses identify the element speed using markings such as gL, gG, aM etc. Some fuses use terms such as slow acting, fast acting, motor rated etc.
How do you determine fuse rating?
The fuse rating can be calculated by dividing the power used by the appliance by the voltage going into the appliance. I (Amps) = P (Watts) รท V (Voltage).
What are the different fuse ratings?
The standard voltage ratings used by fuse manufacturers for most small- dimension and midget fuses are 32, 63, 125, 250 and 600.
How many watts can a 1 amp fuse handle?
3kWatts divided by 230 = 13.04amps. 3000 Watts is the maximum it is safe to put on a 13amp fuse in a plug.
How can you tell if a 13A fuse is blown?
Remove the fuse from its holder. In some cases you may need a small screwdriver to unscrew the fuse holder cap. Look at the fuse wire. If there is a visible gap in the wire or a dark or metallic smear inside the glass then the fuse is blown and needs to be replaced.
What amp fuse do I need for a cooker?
Electric cookers require lots of power to operate since they generate intense amounts of heat. This means that you need to get at least a 13 amp fuse, although newer models will most likely require a 32 amp fuse (read your product’s specifications to check its exact amp rating).
What do fuse markings on a fuse mean?
Fuse Markings Fuse Marking Example More Information Manufacturer / Brand: Bussmann View all the brands we sell Part number / Series: NSD20 Search for fuses using part numbers or k Ampere Rating: 20 A Search for fuses by ampere rating Interrupting Rating: 80 kA Explanation of Interrupting Rating
How can you tell the size of a fuse?
Small fuses generally identify the element speed using markings such as F, M, T etc, whilst larger fuses identify the element speed using markings such as gL, gG, aM etc. Some fuses use terms such as slow acting, fast acting, motor rated etc.
Where do you find the interrupting rating on a fuse?
The interrupting rating or breaking / rupturing capacity of a fuse is usually documented in amperes eg. 50kA, however on some small cartridge fuses, the interrupting rating is represented by a marking eg. L or H. This information may be required when searching for an equivalent fuse of another brand.
Is there a part number on a fuse?
There are many different fuse manufacturers and each manufacturer can have different fuse brands. Hopefully the part number will be quite obvious on the fuse, but it can sometimes be difficult to identify or there may not be a part number on the fuse. If you can’t identify the part number, you will need to rely on other methods of identification.