Siemens B220H - 20 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Siemens B220H stands as a dependable, bolt-on solution for protecting branch circuits in panelboards and loadcenters. This 2-pole, 20A, 240V molded‑case circuit breaker is purpose-built to deliver consistent overcurrent and short-circuit protection where reliability matters most—whether in residential panels, commercial distribution boards, or light industrial installations.

Why this breaker stands out

• Secure bolt-on mounting provides a rigid, vibration‑resistant connection to the bus, reducing movement that can lead to loose contacts and unreliable trips.
• Thermal‑magnetic trip unit offers stable, repeatable protection across a range of load conditions, ensuring fast response to short circuits while minimizing nuisance trips due to normal heating and cooling cycles.
• 2‑pole design for 240V circuits supports multiwire branch circuits and shared-neutral applications commonly found in modern electrical systems.
• OEM‑level compatibility with matching Siemens load centers and panelboards means straightforward replacement or upgrades without sacrificing performance characteristics.
• Rugged molded‑case construction built to endure the demands of residential, commercial, and light industrial environments while delivering reliable protection over time.

Technical snapshot

• Amperage rating: 20A
• Voltage rating: 240V
• Number of poles: 2
• Mounting style: Bolt-on
• Type: Thermal-magnetic molded case
• Part number: B220H
• Application: Branch circuit overcurrent and short-circuit protection

Practical use cases

Install the Siemens B220H in panelboards or loadcenters where you need dependable protection for 20‑amp, 240‑volt circuits such as lighting runs, receptacle circuits in basements or garages, or small motors and equipment commonly found in light commercial spaces. When vibration, secure connections, and consistent trip performance matter—this bolt‑on design minimizes movement and maintains reliable protection even in environments subject to routine activity or equipment vibration.

Who benefits most

• Electricians and electrical contractors stocking Siemens components for panel upgrades or replacements
• Facility managers overseeing residential and light commercial electrical distributions
• Property owners planning safe, compliant branch circuit protection for 240V circuits

How it compares to alternative approaches

Compared with plug‑in or clip‑on breakers, the bolt‑on design of the B220H emphasizes a rigid, long‑lasting bus connection that helps resist loosening over time in installations with vibration or movement. Its thermal‑magnetic trip mechanism delivers predictable responses across varying loads, reducing the risk of uneven protection between parallel circuits. When you need a pan‑ready replacement that aligns with Siemens OEM panels, the B220H ensures consistent trip characteristics and straightforward compatibility.

Installation and reliability tips

Align the breaker with the panel’s bus structure and secure the mounting screws to spec to maintain the integrity of the electrical connection. For best results, pair this breaker with a Siemens‑listed panelboard or loadcenter designed for bolt‑on devices, and follow the panel manufacturer’s torque and wiring guidelines to ensure a safe, code‑compliant installation.

With the Siemens B220H, you get a purpose‑built, 20A, 240V, 2‑pole bolt‑on molded case circuit breaker that delivers robust branch‑circuit protection, stable performance, and seamless compatibility with Siemens panel ecosystems—making it a smart choice for reliable electrical protection today and into the future.