Siemens BQ1B025 - 25 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState

Siemens BQ1B025 delivers reliable, precise protection for 120 V circuits with a compact, rugged design. This 25 A, 1-pole bolt-on molded case circuit breaker is built to guard branch circuits in panelboards and load centers, ensuring your home or small business electrical system stays safe from overcurrent and short-circuit events.

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, helping maintain consistent electrical contact in panels exposed to movement or vibration.
• Thermal-magnetic trip unit offers stable, repeatable protection by combining a thermal element for overload protection with a magnetic element for immediate response to short circuits.
• OEM-compatible design is calibrated to work with matching Siemens load centers and panelboards, simplifying replacement or upgrade projects.
• Versatile application suited for residential, commercial, and light industrial environments where dependable branch-circuit protection is essential.

Key technical details to guide selection and installation are embedded in the model: 25 A amperage rating, 120 V voltage rating, 1 pole, bolt-on mounting, and molded case construction. This combination specifically targets branch circuit overcurrent and short-circuit protection, helping to prevent damage and improve overall system safety.

Ideal use scenarios include upgrading aging panelboards, replacing a faulty breaker on 120 V circuits, or configuring a new small-scale electrical installation where compact, reliable protection is required. The Siemens BQ1B025 stands out by pairing a robust bolt-on connection with a thermal-magnetic trip mechanism, delivering predictable performance in everyday electrical layouts while maintaining compatibility with Siemens’ own panelboard ecosystem.

Why choose this breaker? It’s designed for consistent protection in environments where vibration or movement is a factor, and it aligns with Siemens panelboard standards to reduce compatibility concerns during installation or retrofit projects. For anyone planning a safe, compliant approach to 120 V, 25 A circuit protection in residential, commercial, or light industrial settings, the BQ1B025 offers a targeted, dependable solution.

Technical specifications

• Manufacturer: Siemens
• Part Number: BQ1B025
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 25A
• Voltage Rating: 120V
• Number of Poles: 1
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection