Two questions.
The first: The dryer I'm looking at draws 43a at 240v. There are two hot wires and a ground. Does the dryer draw 43a @ 120v or does it draw 21.5a @ 120v from each hot wire?
Second question: All I want to know is the conditions under which a main circuit breaker trips. Assuming I have a 100a main...
1. If I have a three, two pole appliances (240v) drawing 30a, 20a, and 60a respectively then my breaker trips because I'm drawing 110a. Correct?
2. If I have three single pole appliances (120v) drawing 30a, 20a, and 60a respectively then my breaker DOES NOT trip, so long as the appliances are spread across two different bus bars. I am not drawing more than 100a from either bus, so the main breaker does not trip.
3. If I have one two pole (240v) appliance drawing 60a, a single pole (120v) appliance on bus bar A drawing 40a, and a single pole (120v) appliance on bus bar B drawing 50a my bus bar trips because I'm drawing greater than 100a
The first: The dryer I'm looking at draws 43a at 240v. There are two hot wires and a ground. Does the dryer draw 43a @ 120v or does it draw 21.5a @ 120v from each hot wire?
Second question: All I want to know is the conditions under which a main circuit breaker trips. Assuming I have a 100a main...
1. If I have a three, two pole appliances (240v) drawing 30a, 20a, and 60a respectively then my breaker trips because I'm drawing 110a. Correct?
2. If I have three single pole appliances (120v) drawing 30a, 20a, and 60a respectively then my breaker DOES NOT trip, so long as the appliances are spread across two different bus bars. I am not drawing more than 100a from either bus, so the main breaker does not trip.
3. If I have one two pole (240v) appliance drawing 60a, a single pole (120v) appliance on bus bar A drawing 40a, and a single pole (120v) appliance on bus bar B drawing 50a my bus bar trips because I'm drawing greater than 100a