Siemens BQ2B020 - 20 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Siemens BQ2B020 is a 20A, 240V, 2-pole bolt-on molded case circuit breaker designed to protect branch circuits with precision in panelboards and load centers. Built for reliability in residential, commercial, and light industrial settings, this breaker delivers consistent performance where it matters most — during faults and overloads.

Key features that matter in real-world panels

• Bolt-on mounting provides a rigid, vibration-resistant connection to the bus, reducing looseness and arcing risk in busy panels.
• Thermal-magnetic trip unit delivers stable, repeatable protection: the thermal element handles sustained overcurrent while the magnetic element responds instantly to high fault currents.
• 2-pole design at 20A, 240V is ideal for 240V circuits and shared-neutral configurations common in modern installations.
• OEM compatibility works seamlessly with matching Siemens load centers and panelboards for straightforward replacements and upgrades.
• Robust molded case construction helps withstand daily panel use and simplifies installation in limited-space layouts.

Who benefits from the Siemens BQ2B020

This breaker is an excellent match for electricians and installers focusing on reliable branch-circuit protection across residential subpanels, commercial distribution panels, and light industrial panels. If you’re upgrading an older circuit breaker, repairing a failed unit, or stocking a Siemens-compatible panel, the BQ2B020 fits the bill.

Why this matters for your electrical safety and uptime

The combination of a secure bolt-on connection and a thermal-magnetic trip unit helps minimize nuisance trips while ensuring fast isolation during short circuits. With a 20A rating at 240V, it safeguards typical circuits such as multi-outlet runs, lighting and small-appliance circuits, and other 240V loads, without interrupting other branches unnecessarily.

Technical specifications

• Manufacturer: Siemens
• Part Number: BQ2B020
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 20A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Secure the protection your panel demands with the Siemens BQ2B020—a dependable, 2-pole bolt-on solution designed for precise protection and straightforward compatibility in modern panel setups.