Siemens BQ2B025 - 25 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

The Siemens BQ2B025 is a 25A, 240V, 2-pole bolt-on molded case circuit breaker designed to deliver dependable branch-circuit protection in panelboards and load centers. Featuring a thermal-magnetic trip unit, it provides stable, repeatable protection across a wide range of temperatures and load conditions, helping prevent nuisance trips while still delivering fast response to actual faults. The bolt-on mounting creates a secure, vibration-resistant connection to the bus, keeping your electrical system reliable even in demanding environments.

• Secure bolt-on mounting for a rigid, vibration-resistant connection to the bus, reducing movement and arcing during operation.
• Thermal-magnetic trip unit delivers stable protection by combining thermal and magnetic sensing for predictable tripping behavior under varying loads and fault conditions.
• 2-pole design ensures simultaneous disconnection of both hot conductors, enhancing safety and compliance in multi-wire branch circuits.
• OEM-compatible with matching Siemens load centers and panelboards, simplifying replacement and service without compatibility concerns.
• Versatile application suited for residential, commercial, and light industrial panels that require reliable overcurrent and short-circuit protection.
• Reliable rating 25A at 240V, ideal for protecting branch circuits that demand steady performance without unnecessary interruption.

Who benefits most

• Electrical contractors wiring or upgrading panelboards and load centers in homes, storefronts, small offices, and light industrial facilities.
• Facility managers seeking dependable, drop-in replacements that maintain OEM compatibility and panelboard integrity.
• HVAC and equipment installers needing robust protection for critical circuits without frequent nuisance trips.

Technical specifications

• Manufacturer: Siemens
• Part Number: BQ2B025
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 25A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Practical considerations and installation tips

• Use in conjunction with Siemens OEM load centers and panelboards to ensure seamless fit and performance.
• Verify that the circuit demands align with a 25A protection scheme to avoid unnecessary tripping or nuisance interruptions.
• Follow standard safety practices when working with energized equipment, and secure the breaker firmly to the panel bus with the supplied hardware.
• Store and handle the breaker per Siemens guidelines to prevent corrosion or damage that could affect trip accuracy.