QOB/QO Circuit Breakers Wire Sizes
This wire size information for Schneider Electric’s
QOB/QO circuit breaker provides recommended copper and aluminum conductor
sizes for a wide range of QOB series circuit breakers. It covers 1-pole,
2-pole, and 3-pole breakers, including standard, VH (high ampacity),
GFI, and EPD models, with ampere ratings from 10 A to 200 A. It specifies
compatible wire size ranges (AWG and kcmil) to support proper installation,
safety, and code compliance across commercial and industrial electrical
applications.
Wire Sizes for QOB/QO Circuit Breakers
For additional information, refer to NO Panelboards online.
QOB/QO Circuit Breaker Wire Sizes
|
Breaker Type |
Ampere Rating |
Wire Size (AWG or kcmil) |
|
|---|---|---|---|
|
Al |
Cu |
||
|
QOB 1-pole |
10–30 A |
#14–8 |
#14–8 |
|
10–30 A |
— |
two #14–10 |
|
|
35–70 A |
#8–2 |
#8–2 |
|
|
QOB 2-pole |
10–30 A |
#14–8 |
#14–8 |
|
10–30 A |
— |
two #14–10 |
|
|
35–70 A |
#8–2 |
#8–2 |
|
|
80–125 A |
#4–2/0 |
#4–2/0 |
|
|
150–200 A |
#4–300 |
#4–300 |
|
|
QOB 3-pole |
10–30 A |
#14–8 |
#14–8 |
|
35–70 A |
#8–2 |
#8–2 |
|
|
80–125 A |
#4–2/0 |
#4–2/0 |
|
|
QOB-VH |
110–150 A |
#4–300 |
#4–300 |
|
QOB-GFI and |
15–30 A |
#12–8 |
#14–8 |
|
40, 50, or 60 A |
#12–4 |
#14–6 |
|