Square D | Q1B280 | Circuit Breaker | 80A | 2-Pole | 240V | Bolt-On

Square D Q1B280 is an 80A, 2-pole, 240V bolt-on circuit breaker engineered for dependable overcurrent protection in compatible panels. Whether you’re performing routine maintenance, a retrofit, or a precise replacement, this breaker delivers a solid, field-ready solution.

Key specifications at a glance

• Amperage: 80A
• Poles: 2-Pole
• Voltage: 240V
• Mounting: Bolt-On

Why this Square D breaker stands out

• Exact-fit reference: The Q1B280 part number is the clearest compatibility indicator. Always verify your panel model and ratings to ensure a proper, safe fit.
• Secure bolt-on mounting: Bolt-on design provides a durable, vibration-resistant connection, ideal for panels where reliable seating is critical.
• Ideal for high-current 240V circuits: With an 80A rating, it protects feeders and large appliances such as air-conditioning units, water heaters, or subpanels that rely on 240V service.
• Maintenance and retrofit ready: Replacing an aging or tripping breaker in Square D installations is straightforward when you match the Q1B280 to the panel’s requirements.

Practical scenarios and guidance

Scenario: You’re upgrading or replacing a failed 2-pole 240V breaker in a Square D panel that serves a heavy 80A circuit. The Q1B280 fits the bill by delivering consistent protection without altering the surrounding bus or wiring layout.

Tip: Before purchase, cross-check the panel’s model number and the existing breaker style. While the Q1B280 is designed for bolt-on Square D configurations, mismatched form factors can affect protection performance and compliance.

In short, the Square D Q1B280 80A, 2-Pole, 240V Bolt-On Circuit Breaker is a purpose-built choice for reliable, field-ready protection in compatible panels. It’s the smart, exact-match option for maintenance, retrofit, and replacement projects that demand dependable 240V performance and a secure bolt-on connection.