Square D | QOB330VH5252 | Circuit Breaker | 3-Pole | Bolt-On

The Square D QOB330VH5252 circuit breaker is a robust 3-pole bolt-on device designed to protect and support maintenance, retrofit, and replacement work in compatible panels. When exact specifications matter, this unit helps you preserve the protection scheme without compromising panel compatibility.

• 3-Pole Bolt-On design: secure mounting and reliable interruption across all three conductors in compatible Square D enclosures.
• Definitive reference: QOB330VH5252 is the best compatibility anchor—always verify against your panel’s listing and factory documentation.
• Targeted use cases: ideal for service work, panel upgrades, or replacing a worn or out-of-spec breaker in systems that require a 3-pole bolt-on option.
• Fit and ratings first: before ordering, confirm the fit and electrical ratings match your panel requirements to avoid downtime or incompatibility.

Why choose this Square D breaker? It’s purpose-built for scenarios where a precise, bolt-on 3-pole configuration is required, delivering dependable protection without the complexity of alternative mounting styles. By sticking to the proven QOB bolt-on lineage, you maintain consistent interrupting performance and alignment with your panel’s bus structure.

Practical tips for installation and planning:

• Match the part number (QOB330VH5252) to your panel’s documented compatibility list for a quick sanity check.
• Use appropriate tools and follow manufacturer mounting guidelines to ensure a secure bolt-on connection.
• Keep a record of the part number for future maintenance or replacements to simplify reordering.