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

Engineered for dependable branch-circuit protection, the Siemens BQ2B10000S01 delivers 100A at 240V across 2 poles with a bolt-on molded case design that secures a solid, vibration-resistant connection to the bus. Built to work seamlessly in panelboards and load centers, this unit is a trusted choice for reliable overcurrent and short-circuit protection in diverse electrical environments.

• Secure bolt-on mounting: a rigid mounting method that resists vibration and maintains a dependable bus connection, even in busy electrical panels.
• Thermal-magnetic trip unit: combines steady thermal protection with instantaneous magnetic trips for quick response to short circuits, reducing potential damage and downtime.
• OEM-compatible: designed to mate with matching Siemens load centers and panelboards, delivering consistent performance and hassle-free replacement when modernization or expansion is needed.
• Versatile applications: suited for residential panels, commercial office panels, and light industrial distributions where robust protection is essential.

Technical snapshot

• Manufacturer: Siemens
• Part number: BQ2B10000S01
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 100 A
• Voltage rating: 240 V
• Number of poles: 2
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

• Upgrading or expanding residential panels where reliable 100 A protection is required for feeders or subcircuits.
• Commercial office panelboards delivering steady protection to lighting, outlets, and small equipment circuits.
• Light industrial distribution where rugged mounting and consistent trip performance are essential in compact panel layouts.

Choosing the Siemens BQ2B10000S01 means opting for a molded case breaker that emphasizes reliability, compatibility, and ease of maintenance. It aligns with Siemens' engineering standards to ensure consistent trip performance, stable operation, and straightforward integration into existing Siemens-based electrical systems.

Why it matters: A 2-pole, 100 A breaker provides coordinated protection for multiwire branch circuits and shared neutrals while fitting neatly into standard Siemens panelboard footprints. The bolt-on design reduces the risk of loose connections under vibration and load fluctuations, helping to minimize nuisance trips and maintenance calls over time.

Available through AmpState, this Siemens BQ2B10000S01 is a purposeful choice for professionals seeking authentic Siemens protection with a clear path for compliant installation in compatible panelboards and load centers. For best results, consult the Siemens installation guidelines and verify that your panel supports bolt-on molded case breakers of this specification.