Square D QOB220VH - 20 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Protect your electrical system with precision and reliability using the Square D QOB220VH 20A, 240V, 2-Pole Bolt-On Molded Case Circuit Breaker — the trusted choice for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for steady performance in demanding environments, this breaker pairs robust mounting with precise trip technology to keep circuits safe and outages rare.

• Bolt-on mounting: A secure, vibration-resistant bus connection that stays tight under the demands of busy panels and equipment rooms.
• Thermal-magnetic trip unit: Combines thermal and magnetic trip mechanisms for stable, repeatable protection across a range of fault conditions and load types.
• 20A, 240V, 2-Pole: Delivers targeted protection for two conductors with a common trip, ideal for shared circuits and multi-wire arrangements.
• OEM-compatible: Designed to install seamlessly in matching Square D OEM load centers and panelboards, simplifying replacements and upgrades.
• Versatile applicability: Suitable for residential, commercial, and light industrial panels — supporting lighting, receptacle circuits, and small machinery feeds.

Why this breaker stands out

• Durable, molded-case construction rated for consistent performance in environments where panel access is limited and maintenance windows are tight.
• Precise, thermal-magnetic protection helps prevent nuisance trips while still delivering fast, decisive response during short circuits or overloads.
• Compact 2-pole design with bolt-on mounting offers a reliable fit where space and panel design favor rigid, secure connections over alternative mounting styles.

Technical specifications at a glance

• Square D
• QOB220VH
• Thermal-magnetic molded case circuit breaker
• 20A
• 240V
• 2
• Bolt-on
• Branch circuit overcurrent and short-circuit protection

Ideal use scenarios

• Residential panels replacing a failed or aged breaker on a 240V branch circuit
• Commercial panels demanding reliable, low-torque retention in busy service rooms
• Light industrial setups where solid, vibration-resistant mounting prevents bus-bar looseness
• New installations or upgrades where OEM compatibility ensures smooth panel compatibility and field serviceability

Practical installation tips

• Before installation, confirm the panelboard is rated for the QOB220VH and that the bolts are torqued to the manufacturer’s specification to maintain a reliable bus connection.
• Use the bolt-on design to achieve a rigid, long-lasting connection in environments with vibration or thermal cycling.
• Plan for replacement and spare parts by noting the exact part number QOB220VH to ensure future compatibility with matching load centers.

From AmpState, the Square D QOB220VH delivers focused, durable protection for the circuits that matter most. If you’re upgrading a panel, replacing a faulty breaker, or stocking a reliable component for residential, commercial, or light industrial service, this 20A, 240V, 2-pole bolt-on solution keeps your electrical system safe, compliant, and ready for everyday demand.