QO High Ampacity Plug-on Branch Circuit Breakers
High Ampacity Plug-on Branch Circuit Breakers
These high ampacity branch circuit breakers include both standard models with a 10 kA interrupting rating and VH models with an enhanced 22 kA interrupting rating, offering flexibility to meet varying fault current requirements. Available configurations include QO2150, QO2150VH, QO2175, QO2175VH, QO2200, and QO2200VH. They feature a convenient plug-on design that simplifies installation while maintaining the durability and performance expected.
For additional information, refer to NO Panelboards online.
High Ampacity Plug-on 2–Pole QO Branch Circuit Breakers
| Catalog Number | Ampere Rating | AIC Rating |
|---|---|---|
| 150 | 10 kA | |
| 150 | 22 kA | |
| 175 | 10 kA | |
| 200 | ||
| 175 | 22 kA | |
| 200 |
note
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May only be installed on Single—phase 400 or 600 A NQ Panelboards with three point latch trim fronts.
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A maximum of four 150, 175, or 200 A QO (VH) plug-on branch circuit breakers may be installed in NEMA 1 enclosures. These enclosures require NCxxV( )3P three point latch trim fronts, as listed in Main Lug Interiors or Main Circuit Breaker Interiors.
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One 150, 175, or 200 A QO (VH) plug-on branch circuit breaker may be installed in 8.75 in. deep MHxxD9VWP NEMA 3R enclosures, as listed in Main Lug Interiors or Main Circuit Breaker Interiors.