Sizing a circuit breaker is never easy. But it’s also not all that difficult. Everybody knows that we need an adequately sized circuit breaker that allows for sufficient electric current. If we undersize a breaker, the breaker will likely catch on flame. No pressure here. How do you go about picking the correct circuit breaker … Read more
The thermostat setting is quite simple: Set a temperature, and AC or furnace will reach the set temperature. That’s the theory at least. In practice, we experience a problem of the thermostat not reaching the set temperature quite often. Here are just a few ways how homeowners express this temperature setting problem: “Why does my … Read more
Every air conditioner has to be wired. Choosing the wrong wire size for your AC unit will fry the circuit (and possibly damage the unit itself). Everybody knows they need the correct air conditioner wire size; not everybody knows what is the correct AC wire size, however. To help you out choosing an adequate wire … Read more
12V circuit is a low-voltage electric circuit. It’s primarily used in most batteries. To produce larger amounts of electric power (wattage), we usually need quite a lot of amps. That means we need relatively big 12V cable sizes. Now, how do you figure out what size wire you need for a 12V circuit? Example: Let’s … Read more
The wrong AC breaker will fry electric circuits. Everybody knows that you have to think about what size breaker you need for an AC unit. Not everybody, however, knows how to adequately choose the right size breaker for an AC unit. To help you out with AC electrical requirements (and prevent your breaker from catching … Read more
12 AWG wire is one of the most commonly used wire sizes in electric engineering. With 25A ampacity at a median of 75ยฐC temperature, it is the best wire to be used for 20 amp services (of course, you have to account for 80% NEC requirement, as we explain later on). We are going to … Read more
200 amp wires are quite big. They can be used as 200 amp ground wires, wires for 200 amp breaker, they can be copper or aluminum 200 amp wires. The common question for all these applications here is this: What size wire do I need for 200 amp service? If you look at the AWG … Read more
What is 20 amp breaker wire size? If you’re planning to set up a 20 amp circuit, you will need the correct wire gauge for 20 amps. Note: 20 amp 240 volt circuit can generate up to 4,800W wattage. Here the answer seems obvious: You need a 14 gauge wire on a 20 amp circuit, … Read more
If you’re setting up a 40 amp circuit, you need to figure out what size wire you need for 40 amps. In particular, you have to choose the right AWG gauge wire to handle that current. With a 40 amp 240 volt circuit, you will have a circuit that can handle 9,600W wattage. We will … Read more
“What size wire for 30 amps?” You want to choose the correct wire size for 30 amp service. This can be a 30 amp breaker size, 30 amp circuit, and so on. We are going to look into what wire size you need for: 30 amp 240 volt circuit. This circuit can handle up to … Read more