counter sales here, QO and homeline breakers are two different plug-in style low voltage breakers for square d loadcenters, you can tell the difference in the way the frame (face & body) of the breaker is, especially if you pull one out, the clips that plug into the bus bars are completely different, they are for sure not compatible with each other! great video! God bless!
QO stands for "Qwik-open". Something else when choosing a breaker that is oftentimes overlooked is a straight rating vs slash (or slant) rating. Art. 240.85. A circuit breaker with a straight voltage rating such as 240V or 480V, shall be permitted in a circuit where the nominal voltage between any two conductors does not exceed the circuit breaker's voltage rating. A circuit breaker with a slash rating such as 120/240V or 480Y/277V is for use on a solidly grounded circuit where the nominal voltage of any conductor to ground doesn't exceed the lower value of, and the nominal voltage between any two conductors does not exceed the higher value of the circuit breaker's voltage rating. All single pole, and most two pole breakers are slash rated, while all three pole breakers are straight rated. A common violation occurs when supplying a single phase line to line loads from a 120/240V 3ø 4 wire delta panelboard. Phase B is the high leg eg. 208 volts to ground. A two pole breaker placed on phases A - B, or B-C must have a straight rating, if placed on C-A a breaker can have a slash or straight rating. You can forget about driving to your local home depot to buy a straight rated circuit breaker.
counter sales here, QO and homeline breakers are two different plug-in style low voltage breakers for square d loadcenters, you can tell the difference in the way the frame (face & body) of the breaker is, especially if you pull one out, the clips that plug into the bus bars are completely different, they are for sure not compatible with each other! great video! God bless!
QO stands for "Qwik-open".
Something else when choosing a breaker that is oftentimes overlooked is a straight rating vs slash (or slant) rating. Art. 240.85. A circuit breaker with a straight voltage rating such as 240V or 480V, shall be permitted in a circuit where the nominal voltage between any two conductors does not exceed the circuit breaker's voltage rating. A circuit breaker with a slash rating such as 120/240V or 480Y/277V is for use on a solidly grounded circuit where the nominal voltage of any conductor to ground doesn't exceed the lower value of, and the nominal voltage between any two conductors does not exceed the higher value of the circuit breaker's voltage rating.
All single pole, and most two pole breakers are slash rated, while all three pole breakers are straight rated.
A common violation occurs when supplying a single phase line to line loads from a 120/240V 3ø 4 wire delta panelboard. Phase B is the high leg eg. 208 volts to ground. A two pole breaker placed on phases A - B, or B-C must have a straight rating, if placed on C-A a breaker can have a slash or straight rating. You can forget about driving to your local home depot to buy a straight rated circuit breaker.
@@rarelampcollector Thank you!
Quick open!