Siemens BQ2B090H 90A 2P 240V Circuit Breaker, Bolt-On | AmpState

The Siemens BQ2B090H 90A 2P 240V Bolt-On Circuit Breaker is engineered for reliable overcurrent protection in panelboards, load centers, and electrical distribution systems. Designed for retrofit projects and maintenance plans where keeping the same part number matters, this 2-pole breaker provides a secure, long-lasting solution that teams can count on.

Key specifications at a glance

• Amperage: 90 A
• Poles: 2
• Voltage: 240 V
• Mounting style: Bolt-On
• Manufacturer: Siemens
• Part number: BQ2B090H
• Product type: Circuit Breaker

This bolt-on design delivers a dependable, vibration-resistant connection that fits compatible Siemens panelboards and distribution setups, making it ideal for both new installations and replacements where the existing part number must be preserved.

Why this 90A 2P breaker stands out for professionals

• Seamless integration into existing panelboards and distribution networks without changing the surrounding hardware.
• Specifically rated for 240V circuits, safeguarding electrical systems from overloads and short circuits.
• A stable bolt-on mounting approach simplifies inspection, torque checks, and future replacements during service planning.
• Ready-to-ship inventory from AmpState ensures quick replacements to minimize downtime.

Ideal for: electricians and facility managers tackling panelboard upgrades, panel maintenance, or retrofit projects where exact part numbers must be maintained for system compatibility or documentation continuity.

Practical guidance and use cases

• Use during panelboard modernization to upgrade protection without changing the existing breaker family.
• Stock this 90A 2P bolt-on breaker as a reliable spare for scheduled maintenance windows, reducing downtime when a replacement is needed.
• Plan retrofit work in commercial or industrial environments where consistent part numbers simplify ordering and service history.

If you’re unsure about compatibility, AmpState offers assistance to confirm fit and ensure you’re selecting the correct part number for your specific panel or distribution setup. Message us and we’ll help verify your configuration and keep your electrical system running smoothly.