Square D QOB245 - 45A, Circuit Breaker

The Square D QOB245 45A Circuit Breaker delivers precise overcurrent protection for demanding electrical systems, designed to perform in panelboards, switchboards, control panels, and OEM equipment. With a 45A rating, this breaker guards circuits powering motors, conveyors, and other heavy loads, helping you maintain safe, reliable operation across industrial and commercial facilities.

Why choose the Square D QOB245 45A Circuit Breaker

• 45 Amp current rating: Protects circuits that require dependable overload and short-circuit protection without sacrificing performance.
• Versatile integration: Suitable for panelboards, switchboards, control panels, and OEM equipment—expanding options for industrial installations and equipment builders.
• Designed for demanding environments: Engineered to deliver safe operation and consistent protection in distribution panels and motor control centers.
• Part of the Square D family: The QOB245 is built to align with compatible Square D components and enclosure systems, simplifying upgrades and replacements.
• Ideal use cases: Industrial plants, commercial facilities, and OEM projects that require a robust 45A protective device for distribution networks and motor-driven equipment.

Practical scenarios: upgrading a panelboard in a manufacturing line, equipping a new motor control center, or refreshing an OEM control enclosure with a reliable protection device. This 45A circuit breaker helps you control fault current, reduce risk, and keep critical processes online. When selecting protection for your electrical distribution, the QOB245 provides a precise, reliable option that aligns with Square D systems and standard electrical architecture.

Tip: Ensure correct 45A sizing for your circuit to balance protection with uninterrupted operation. If you’re replacing an older unit or integrating into a new panel, verify compatibility with your enclosure and busbar configuration to streamline installation and maintenance.