Most designers have a pretty good idea of what a circuit breaker is and what it does; if you need a refresher, here’s a quick definition: A circuit breaker is an automatically operated electrical ...

In solar PV systems, circuit breaker selection is something that is easily overlooked and time should be taken to select the correct solution. If the circuit breaker is not appropriate, it will cause ...

One of the standard things home inspectors look at while inspecting an electrical panel is comparing wire sizes to circuit breakers sizes. When a wire is too small for a circuit breaker, you have a ...

Suppose you have a 60A breaker supplying a branch circuit. What size conductors do you need for that circuit? One table in the NEC says No. 8; another says No. 4. Which one is right? What does the ...

Field-assembled refrigeration systems require the installing technician to select the appropriately sized refrigerant lines. Choosing the correct line size is very ...