Siemens BQ1B020 20A 1P 120V Circuit Breaker, Bolt-On | AmpState

Siemens BQ1B020 is a 20 A, 1-pole, 120 V bolt-on circuit breaker built for everyday electrical protection in panelboards, load centers, and electrical distribution systems.

• Part number: BQ1B020
• Manufacturer: Siemens
• Type: Circuit Breaker
• Amperage: 20 A
• Poles: 1
• Voltage: 120 V
• Mounting: Bolt-On
• Applications: panelboards, load centers, and electrical distribution networks

Why this matters: the bolt-on design enables secure, reliable attachment and straightforward field replacement, making it a practical choice for maintenance teams and panel builders who need dependable parts with a precise part-number match.

Who it’s ideal for: maintenance crews maintaining Siemens-equipped panels, panel builders assembling distribution systems, and inventory managers who require exact part-number accuracy for service contracts and projects.

• Replacement in existing Siemens panelboards or load centers
• Spare inventory for services that depend on a direct part-number match
• New builds or retrofits specifying a 20 A, 1P, 120 V protection solution

How this product stands up to the task: the BQ1B020 delivers consistent, specification-aligned protection in standard distribution setups, helping reduce mis-orders and ensuring compatibility across Siemens systems. AmpState offers this part and can help confirm fit for your exact panel or project—just message us to verify compatibility.

Availability: A mpState carries the Siemens BQ1B020, making it straightforward to source the exact part you need for reliable panel protection.