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The QOB280 is a Square D 2-pole 80A bolt-on circuit breaker designed for 120/240V applications. This reliable circuit breaker provides superior performance and protection for your electrical systems. Ideal for residential or commercial use, it ensures efficient operation and safety, making it a perfect choice for your circuit breaker needs.
Both are Square D 2-pole 80A breakers from the QO series, but the QOB280 uses a bolt-on mounting, where the breaker is physically bolted to the bus bar. The QO280 uses Square D's plug-on connection instead. Always check your panelboard's bus style before ordering — using the wrong mounting type can result in a poor connection and a safety hazard.
Yes. The QOB280's 80A, 2-pole, 120/240V rating makes it a common choice for feeding a sub-panel or protecting larger loads such as electric ranges, EV chargers, or workshop circuits. Its 10kA interrupting rating is appropriate for most residential and light commercial distribution points — verify the available fault current at your panel to ensure the 10kA rating is sufficient.
The QOB280 is part of Square D's active QO bolt-on lineup and is generally available. Northern Breaker Group stocks a wide range of Square D breakers — including hard-to-find and obsolete units — across our Calgary, Edmonton, and Vancouver locations. Contact us for current availability and to get a quote.
