Square D Q13151021 15A 3P 240V Circuit Breaker, QO, Plug-On, Shunt Trip | AmpState

The Square D Q13151021 is a 3-pole, 15 A circuit breaker engineered for reliable protection of 240V circuits in panelboards, load centers, and electrical distribution systems. Built on the trusted QO platform, this plug-on breaker delivers quick, field-ready replacement that keeps your electrical gear running with minimal downtime. It also features a shunt trip for remote safety control, expanding how you manage power in critical environments.

• Plug-On QO installation: secure, tool-free mounting that snaps into place on compatible panels, simplifying replacements and reducing installation time.
• Shunt Trip capability: enables remote tripping for emergency shutdowns or integration with supervision and safety systems, adding an extra layer of control and protection.
• Three-pole, 240V, 15A: suitable for signaling, feeders, and three-phase loads that require solid overcurrent protection without changing the electrical footprint.
• Exact part match for BOM consistency: part number Q13151021 helps you preserve original configurations and simplify spare stocking and maintenance records.
• AmpState availability and support: this model is readily available, with assistance available to confirm fit or verify compatibility with your existing panel or distribution setup.

Ideal for replacement projects where the goal is to preserve the original electrical design and minimize downtime, this breaker also serves as a dependable spare to keep service levels steady. The combination of plug-on convenience and remote trip capability means you can tackle routine maintenance or safety-minded upgrades without sacrificing performance.

Who benefits most: electrical contractors, facilities engineers, and maintenance teams managing commercial or industrial panelboards and load centers that rely on Square D QO breakers for consistent performance and reliability.

Practical use scenarios: - Quick replacement in a 3P 240V distribution panel without rewiring or altering mounting hardware. - Keeping a BOM-aligned spare on hand to ensure rapid service when a unit fails. - Integrating with remote shutdown schemes in safety-conscious environments, such as data centers or manufacturing floors, where a shunt-trip option is a valued feature.

Before installation, verify that your panel accepts QO plug-on breakers and that the part number matches Q13151021. If you need confirmation on fit, AmpState is ready to assist with compatibility checks to keep your project on track.