Siemens BQ2B100 - 100 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens BQ2B100—a robust 100A, 240V, 2-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit protection in panelboards and loadcenters. Built for steady performance in residential, commercial, and light industrial settings, it combines secure mounting with precise protection to keep systems safe and running smoothly.

• Bolt-on mounting: Provides a rigid, vibration-resistant bus connection for reliable electrical continuity even in demanding environments.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection with fast response to overloads and short circuits, helping prevent damage to downstream equipment.
• 2-pole, 100A, 240V design: Ideal for handling typical branch circuits while maintaining coordinated protection across two hot legs.
• OEM-compatible: Designed to integrate seamlessly with matching Siemens OEM load centers and panelboards, ensuring a consistent fit and performance.
• Versatile applications: Suitable for residential, commercial, and light industrial installations, from service panels to distribution centers that require reliable protection.

Technical snapshot

• Manufacturer: Siemens
• Part Number: BQ2B100
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Why choose this breaker for your panel installation or upgrade? The BQ2B100’s bolt-on design reduces mounting looseness and vibration, helping maintain a solid, long-lasting connection. Its thermal-magnetic trip mechanism combines predictable thermal response with fast magnetic trips during short circuits, minimizing nuisance trips while safeguarding wiring and equipment. When you need a reliable, OEM-compatible solution that performs consistently across a range of environments, the Siemens BQ2B100 is a practical, proven choice—backed by Siemens engineering and available through AmpState for dependable supply and support.