Siemens BQ2B10000S01 100A 2P 240V Circuit Breaker, Bolt-On | AmpState

Introducing the Siemens BQ2B10000S01 – a purpose-built 100 A, 2-pole, 240V bolt-on circuit breaker designed for reliable protection in panelboards, load centers, and electrical distribution systems. This part number is ideal for replacement projects and for stocking spares when you need to keep your BOM aligned with the original Siemens specification. The Bolt-On mounting ensures a secure, long-lasting connection within compatible enclosures, making maintenance and upgrades straightforward.

• Amperage: 100 A
• Poles: 2
• Voltage: 240V
• Mounting: Bolt-On
• Manufacturer: Siemens
• Part Number: BQ2B10000S01
• Product Type: Circuit Breaker
• Availability: Available from AmpState

Who benefits from the BQ2B10000S01? electricians, facilities managers, and maintenance teams maintaining critical infrastructure in commercial and industrial settings. It’s especially valuable for projects where preserving the original equipment configuration matters most—keeping the BOM aligned to the exact Siemens part number ensures compatibility with existing panelboards and distribution systems.

Why this breaker stands out:

• Precise compatibility: Designed to integrate with Siemens panelboards and load centers that support the BQ2B series, helping you avoid field-fit uncertainties.
• Secure bolt-on installation: The bolt-on design provides a solid mechanical connection, reducing risk of loose mounting in demanding electrical environments.
• Streamlined replacements: With a clearly defined original part number, it simplifies inventory management and BOM maintenance for ongoing serviceability.
• Practical for spares: Keeping this exact part on hand minimizes downtime when a 100 A, 2-pole protection is required in the distribution network.

Use cases include upgrading aging distribution panels, replacing failed breakers in existing Siemens installations, and stocking reliable spares for critical facilities where consistent protection is essential. The BQ2B10000S01 is a concrete, field-ready solution that aligns with the original Siemens design intent while offering the practical benefits of a bolt-on mounting style and straightforward identification via the original part number. If you’re validating fit for a specific panel model, AmpState provides availability and compatibility support to help you confirm the match.