Square D | QOB330PL | Circuit Breaker | 3-Pole | 240V | Bolt-On

The Square D QOB330PL is a robust 3-pole, 240V bolt-on circuit breaker designed to deliver dependable overcurrent protection in demanding electrical systems. Identified by the exact part number QOB330PL, this device is crafted for maintenance, retrofit, and replacement projects where precise specs matter.

Why choose this bolt-on breaker? It’s built for real-world compatibility, offering a reliable 3-pole configuration to handle three-phase applications while providing secure, straightforward mounting in compatible Square D panels. When you select this model, you’re choosing a part that aligns with the Square D family’s engineering standards and electrical characteristics—minimizing guesswork during replacements.

Key benefits

• Configuration — 3-Pole design suitable for three-phase circuits.
• Voltage rating — 240V, matching common commercial and industrial panel requirements.
• Mounting — Bolt-On construction for a solid, dependable connection in compatible panels.
• Exact reference — Part number QOB330PL serves as the best compatibility check for your installation.

Ideal use cases

• Maintenance on existing panels that accept bolt-on breakers
• Retrofit projects where preserving the original system’s protection characteristics matters
• Replacement scenarios that require a precise 3-pole, 240V device with guaranteed compatibility

Installation and compatibility notes

• Always confirm fit and ratings before ordering. The part number QOB330PL is the most reliable reference for compatibility.
• Use within panels designed to accept bolt-on Square D breakers to ensure a proper mounting and electrical connection.
• Follow all applicable electrical codes and the panel manufacturer’s installation guidelines for safe, compliant operation.

Whether you’re updating an old installation, performing a retrofit, or stocking spare parts for routine maintenance, the Square D QOB330PL 3-Pole 240V bolt-on circuit breaker offers precise compatibility, dependable protection, and a straightforward replacement path—helping you keep electrical systems up and running with confidence.