Siemens BQ2B02000S01 - 20 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

The Siemens BQ2B02000S01 is a purpose-built 20A, 240V, 2-pole bolt-on molded case circuit breaker designed to protect your essential branch circuits with precision. Built for panels and load centers, this unit blends robust mechanical stability with dependable electrical response, ensuring your system stays protected even in demanding environments.

Why this breaker stands out

• Secure bolt-on mounting delivers a rigid, vibration-resistant bus connection, reducing the risk of loose connections or arcing in panels subject to movement or vibration.
• Thermal-magnetic trip unit provides stable, repeatable protection—the thermal element responds to gradual overloads, while the magnetic element rapidly interrupts for high-current faults.
• OEM compatibility is built for seamless integration with matching Siemens load centers and panelboards, helping ensure electrical performance and system reliability.
• Two-pole design protects both hot conductors simultaneously, delivering synchronized protection for multi-wire branch circuits.
• Versatile applications suited for residential, commercial, and light industrial installations that require dependable circuit protection with a compact, bolt-on form factor.

Key specifications

• Manufacturer: Siemens
• Part Number: BQ2B02000S01
• 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

Ideal use cases

• Protecting individual branch circuits within residential panelboards where reliable 20A, 240V protection is required.
• Upgrading or configuring panelboards and load centers in light commercial spaces and small industrial setups.
• Situations where vibration resistance is important, such as equipment rooms, mechanical spaces, or panels mounted against structural movement.
• Retrofits that demand a bolt-on, sturdy connection for a durable, long-term installation.

Installation and compatibility tips

For best results, ensure you're pairing the Siemens BQ2B02000S01 with compatible Siemens OEM load centers and panelboards. Verify panel ratings align with a 240V supply and a 20A circuit. Keep bus connections clean and free of debris, and follow standard electrical code guidelines during installation. The bolt-on mount is designed to provide a solid, secure fit that withstands typical electrical panel vibration, helping maintain consistent protection over time. If you’re unsure about installation, consult a qualified electrician to ensure proper alignment, torque, and safety compliance.