Square D QOB3150VH 150A 3P 240V Circuit Breaker, Bolt-On | AmpState

The Square D QOB3150VH 150A 3P 240V Bolt-On Circuit Breaker is a rugged, reliable solution for protecting high-demand circuits in panelboards and load centers. Built for commercial and industrial electrical distributions, this part excels in retrofit projects and ongoing maintenance where keeping the exact part number matters for safety, compatibility, and continuity.

• Bolt-On mounting provides a secure, vibration-resistant attachment that stays put in demanding environments.
• Three poles / 150A rating / 240V suitable for shared-power three-phase circuits and standard 240-volt applications.
• Part Number stability QOB3150VH is designed for retrofits and service upgrades where keeping the same part number simplifies planning and documentation.
• Panel and distribution versatility ideal for panelboards and load centers across commercial and light industrial installations.
• AmpState availability support to help you confirm fit and compatibility for your specific panel configuration.

Typical use cases include upgrading aging gear in a commercial electrical distribution system, performing planned maintenance on a multi-panel setup, or executing retrofit work where exact part numbers must be retained to match existing infrastructure. With its bolt-on design and clear 150A/240V specifications, this breaker delivers dependable protection for high-current circuits without requiring a complete panel swap.

Why choose this model for your project? It combines the trusted Square D heritage with a mounting approach that streamlines installation in retrofit scenarios, minimizes downtime, and preserves your system’s documented configuration. If you’re unsure about compatibility, AmpState can assist in confirming fit against your panel or distribution scheme—simply reach out for guidance on the QOB3150VH and related Square D components.