Siemens B315 15A 3P Circuit Breaker, Bolt-On | AmpState

Introducing the Siemens B315 15A 3P Bolt-On Circuit Breaker — a purpose-built shield for panelboards, load centers, and electrical distribution networks. Designed to preserve BOM integrity while delivering reliable protection, the B315 is the strategic choice for replacement projects and stocking spares that keep installations aligned with the original part number.

Why the Siemens B315 stands out

• Bolt-On installation for fast, secure mounting on compatible Siemens panelboards without complex tools
• Three-pole design provides balanced protection across all three phases in 3P systems
• 15 A rating safeguards circuits common to commercial, industrial, and multi-branch applications
• Original part number alignment ensures BOM consistency and simplifies cross-referencing during upgrades or maintenance
• Stocked by AmpState to support project timelines and on-site spare inventories

Ideal use cases

Use the Siemens B315 when you need a dependable replacement for a failed 3P breaker in Siemens panelboards or load centers. It’s especially valuable for projects that require strict BOM parity, making it easier to source compatible components without re-engineering your distribution setup. Ideal for service fleets, facilities managers, and contractors who prioritize easy identification and consistent part numbers in the field.

Installation and compatibility notes

Verify that your target panelboard accepts bolt-on, 3P breakers and that the original installation references the B315 part number. The B315 is crafted to align with Siemens’ distribution equipment ecosystem, supporting consistent fit and dependable performance across compatible panels and subpanels. For BOM-focused projects, this part number provides a direct, reliable match to the original design.

What this means for your project

Choosing the Siemens B315 isn’t just about a single component—it’s about predictable, standardized protection that minimizes downtime and simplifies maintenance. With a dedicated 3P, 15A configuration, it ensures coordinated protection across phases, helping prevent nuisance trips and keeping critical systems online. It’s a practical, confident choice for engineers, facility managers, and field technicians who value compatibility with the original equipment ecosystem and straightforward stocking.

Secure the Siemens B315 15A 3P Bolt-On Circuit Breaker for your next panel upgrade or service call—a trusted part designed to keep your electrical distribution reliable and compliant.