Square D QOB370VH - 70 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Square D QOB370VH is a rugged 70A, 240V, 3-pole bolt-on molded case circuit breaker built to deliver reliable branch circuit protection and short-circuit interruption in panelboards and loadcenters. This unit is purpose-built for environments where a secure, vibration-resistant connection matters and where dependable protection is non-negotiable.

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection for steady performance in start-up surges or equipment that experiences movement.
• Thermal-magnetic trip unit delivers stable, repeatable protection by combining overload (thermal) and short-circuit (magnetic) protection in one compact device.
• OEM compatibility designed to work with matching Square D OEM loadcenters and panelboards for seamless integration and straightforward replacements.
• 70A, 240V, 3-pole configuration ideal for three-phase circuits and branch protection in commercial, industrial, and residential installations that require robust overcurrent defense.
• Molded case construction combines durability with ease of servicing in panel environments, reducing maintenance needs over time.

Designed for a variety of scenarios—from panel upgrades and new installations to retrofit projects in equipment rooms with vibration or heavy-duty use—the QOB370VH delivers dependable protection where it matters most. Its 3-pole design supports typical three-phase distributions, helping you manage load safely and efficiently while maintaining compatibility with your existing Square D infrastructure.

Whether you’re an electrician outfitting a commercial space, a facilities manager upgrading a light industrial panel, or a homeowner upgrading a residential panelboard, the QOB370VH provides a concrete, reliable solution. Its combination of secure mounting, precise thermal-magnetic protection, and OEM-fit compatibility makes it a practical choice for ensuring continuous service and protecting wiring and devices downstream from overcurrent events.