Square D QOB3125VH - 125A, 3-Pole, Circuit Breaker

Square D QOB3125VH is a rugged 125A, 3-Pole circuit breaker engineered for reliable overcurrent protection in demanding industrial, commercial, and OEM applications. With a three‑phase configuration, this breaker is ready to safeguard panelboards, switchboards, and control panels where consistent performance and safe operation are non‑negotiable.

• 125A protection provides robust safeguards for main feeders and critical distribution circuits in medium to large installations.
• 3‑Pole design supports three‑phase systems, ensuring uniform protection across all conductors in your motor control centers and three‑phase panels.
• Versatile deployment suitable for panelboards, switchboards, and control panels, making it a practical choice for a range of electrical environments.
• Dependable overcurrent protection helps minimize downtime and equipment damage by interrupting fault currents quickly and safely.
• Rugged, field‑ready construction built to withstand the rigors of industrial settings while maintaining reliable performance across operating conditions.
• OEM-friendly and integrator‑focused designed to fit into common distribution enclosures and be incorporated into custom electrical assemblies with ease.

Ideal for facilities and projects where safety, reliability, and precise protection are critical—plant floors, manufacturing lines, and commercial power distribution centers alike. The QOB3125VH supports three‑phase systems central to motor control centers, process lines, and critical panel configurations, helping you maintain steady operation even in challenging electrical environments.

Use cases include new installations in panelboards and switchboards, retrofits in aging gear where 3‑phase protection is required, and OEM equipment builds that demand dependable 125A overcurrent protection. If you’re standardizing on Square D components for consistency, compatibility, and recallable performance, the QOB3125VH is a compelling choice that aligns with professional electrical design and safety standards.