How do you calculate the maximum current a fuse can carry?
Table of Contents
How do you calculate the maximum current a fuse can carry?
Fuse rating = (watts/volts) x 1.25….
- Note the power of the appliance – usually in the appliance manual,
- Note the voltage.
- Use the next highest fuse rating after the calculation.
- Say the calculated fuse rating is 2.26 amps, use a 3 amp fuse.
- Say the calculated fuse rating is 4.9431 amps, use a 5 amp fuse.
How many amps should my fuse be?
The fuse on the left is a 40 amp fuse. The fuse on the right is a 15 amp fuse….
| Wire Gauge | Recommended Maximum Fuse Size |
|---|---|
| 4 awg | 125 amps |
| 6 awg | 80 amps |
| 8 awg | 50 amps |
| 10 awg | 30 amps |
How do you calculate maximum current?
If you divide 8.366V by 140 ohms you get 59.76 mA which the maximum current the resistor can handle. How do you know this is the max current? well use P=V*I to check. True, you can use the current you calculated.
How many kW can 32 amps take?
“A 30 or 32A circuit is usually appropriate for household or similar cookers of rating up to 15 kW.
How many amps will 16 gauge wire carry?
13 Amps
| Types of Cord | Gauge Size Range | Ampacity of Current-Carrying Conductors (amperes) |
|---|---|---|
| 0 – 50 ft. (0 – 15.2 m) | ||
| SOOW – Service Oil Resistant Insulation/ Jacket Weather-resistant | 16 AWG | 13 Amps 10 Amps |
| 14 AWG | 18 Amps 15 Amps | |
| 12 AWG | 25 Amps 20 Amps |
What size fuse do I need for a 1500 watt amp?
150 Amp
A 2500 watt uses a 250 Amp fuse, while a 1500 watt uses a 150 Amp fuse.
What amp size do I need?
Generally you should pick an amplifier that can deliver power equal to twice the speaker’s program/continuous power rating. This means that a speaker with a “nominal impedance” of 8 ohms and a program rating of 350 watts will require an amplifier that can produce 700 watts into an 8 ohm load.
How do you find the maximum current in a circuit?
Current is calculated using Ohm’s Law as I = V/R. So if voltage is 12V, and resistance is 1kOhm, then current is 12 / 1000 = 12 mA.
How do you find the maximum and minimum current?
Use V/R to get I, and min I = V/ max R.
How many watts can a 13 amp fuse take?
3000 watts
Plugs for appliances rated between about 700 watts and 3000 watts (the maximum rating of a wall socket) should be fitted with a 13-amp fuse (coloured brown). For example: 13A Fuse – Washing machine, dishwasher, microwave, kettle, toaster, iron.
How many watts can a 30-amp fuse handle?
3,600 watts
A 30-amp outlet supplies 3,600 watts (30 amps multiplied by 120 volts). Therefore, the breaker on that outlet could meet code and still trip anywhere between a total load of 2,880 watts (80 percent of 3,600 watts) and 4,320 watts (120 percent of 3,600 watts).
How do I find the fuse amperage for my Fuse wire?
A Find the MAXIMUM FUSE AMPERAGE by following your AWG wire size (from Part 1 of this series) across the chart. Maximum fuse amperage reduces nuisance blows but offers less protection for the wire. Select: Outside Engine Room or Inside Engine Room grey bar Example: For a 4 AWG single wire outside an engine room, maximum fuse amperage is 150A.
How to choose the right fuse size for your circuit?
Identify the smallest gauge wire the load current will flow through. One common misconception about choosing the correct fuse size is that it depends on the load of the circuit. However, the load of the circuit is not suitable to use alone when choosing a fuse size. The fuse size should be based on the SMALLEST wire in the circuit.
How do I find the amperage required for my installation?
To find the total amperage in your specific installation, refer to the table below. Find the items that you’re installing and their current requirements. Add the values and divide by 1000 to get your total current in Amps. You can use this value in the fuse size chart above to determine the minimum wire size required.
What is a fuse rating and how do you find it?
You’ll usually find the fuse rating on the side of your fuse, which will be given in amps. Fuse rating is the amount of current needed for the fuse to blow or break. When this happens, it stops the electrical power from flowing through the electrical circuit. Why are fuses rated?