QOB/QO Arc-Fault and Dual Function Circuit Breakers
Arc-Fault and Dual Function Circuit Breakers
These circuit breakers are available in 15 A and 20 A ampere ratings and are offered in 1-pole, 120 Vac and 2-pole, 240 Vac configurations. Models are available with interrupting capacities of 10 kAIR and 22 kAIR, enabling them to meet various fault current requirements. Single-pole devices require one panel space, while two-pole devices require two panel spaces within compatible QO/QOB panelboards. Breakers rated from 10–30 A are suitable for use with 60°C or 75°C conductors, providing installation flexibility.
For additional information, refer to NO Panelboards online.
QOB/QO™ Arc-Fault and Dual Function Circuit Breakers [1][2][3]
|
Circuit Breaker Type |
Ampere Rating [3] |
1P 120
Vac |
1P 120 Vac |
2P 240
Vac |
2P 240
Vac |
|
Catalog Number |
Catalog Number |
Catalog Number |
Catalog Number |
||
|
Combination |
15 A |
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|
20 A |
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|
Dual Function: |
15 A |
Use plug-on QO 2–pole dual function MCBs | |||
|
20 A |
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For accessories, see Accessories for QO/QOB Circuit Breakers, in Section 7.
note
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Single-phase 400 or 600 A NQ panelboards accept 150, 175, and 200 A two-pole QO Plug-on Branch Circuit Breakers.
-
Each circuit breaker takes four pole spaces. Installation into three-phase interiors is not allowed as it may create a phase to phase short circuit.
-
One NQ200AN neutral lug kit should be installed for each pair of 175 or 200 A QO breakers if a neutral termination is required.
-
One Q1150AN lug kit should be installed for each 110 to 150 A QOB circuit breaker, if a neutral termination is required.