Square D QOB230 - 30 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Meet the Square D QOB230—a precision-engineered 30A, 240V, 2-pole bolt-on molded case circuit breaker designed to safeguard electrical panels with reliability and ease. Built for dependable branch circuit overcurrent and short-circuit protection, it delivers a secure, long-lasting connection in panelboards and load centers.

• Secure bolt-on mounting for a rigid, vibration-resistant bus connection that stays put through the life of the panel.
• Thermal-magnetic trip unit delivers stable, repeatable protection by handling both overload (thermal) and short-circuit (magnetic) events with fast, predictable response.
• OEM-compatible design engineered to pair with matching Square D load centers and panelboards for a clean, straightforward install.
• Versatile applications suitable for residential, commercial, and light industrial panels where reliability and secure connections matter.

Technical snapshot

• Manufacturer: Square D
• Part Number: QOB230
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 30A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use scenarios

• Expanding a residential or light commercial panel where bolt-on breakers are required for a secure bus connection.
• Upgrading subpanels or service centers that demand stable performance under continuous load and occasional fault conditions.
• Protecting lighting, receptacle, and general-power circuits in spaces prone to vibration or movement where a tightened, vibration-resistant connection is essential.

Why choose the QOB230

Rather than a generic breaker, the QOB230 is purpose-built for dependable, repeatable protection in Square D panel ecosystems. Its bolt-on design reduces the risk of loosening over time, while the thermal-magnetic trip unit provides precise fault clearing without nuisance trips, keeping downstream equipment safe and uptime high. For installers and end users, this breaker means a reliable fit, straightforward mounting, and clear protection for critical circuits in varied environments.