This means that whether the circuit is 120 V or 240 V. The same rules apply no matter the voltage of the conductor or the circuit. This plays into what size wire for 50 amp breaker because we have to choose 40 or 60 in this case of wire size. Going with a larger size wire and a smaller size overcurrent protection ensures us of that we have no issues with overloading the wire itself. There is no size wire in between the two so we have to choose one or the other. Since the rules are not 100% clear we’re trying to stick with number six in all applications as number six is actually ready for 60 amps and is an industry standard. This does not apply to motor loads of any sort. The code stipulates that if it is used for an electric heat resistant flow it can be rated at 50 A instead of 40. However in our most recent code code is stated that we are permitted to run this up to 50 Aamps of overcurrent protection even though the wires only ready for 40 amps. Normal process is to protect it with an overcurrent device of 40 amp itself. Number eight copper conductor is rated for 40 A. We do not practice this much unless we are in a jam and the wire is already run to be reused. In a situation where we use a resistive heat load only we can fuse number 6 at 70 amps. This can be a little confusing to understand. Number six aluminum is rated for 55 amps so technically we can fuse it or installed on overcurrent device of 50 A.Īs per table 2 of our code number 6 is actually rated for 70 amps. We can also use an aluminum rated conductor of number six size. The number six wire that we use is usually of copper construction. This is common and a regular practice that we have done for years. We will fuse a number six wire on 50 amps. Since there is no wire size specifically designed for 50 amp. A number six conductor is used on a 50 amp breaker. Does stranded wire carry more amps than solid?.Can I put a 50 amp breaker in a 100 amp panel?.What size breaker do I need for 8 gauge wire?.
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