Siemens B220HH - 20 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

The Siemens B220HH is a precisely tuned 20A, 240V, 2-pole bolt-on molded case circuit breaker designed to protect your electrical system with reliability you can feel. Built for enduring branch circuit protection in panelboards and load centers, this breaker combines rugged mounting with intelligent trip technology to keep your home or business powered safely and consistently.

Why the B220HH stands out

• Secure bolt-on mounting ensures a rigid, vibration-resistant bus connection that stays seated through load surges and daily operation.
• Thermal-magnetic trip unit delivers stable, repeatable protection across a range of fault currents, helping prevent nuisance trips while still stopping dangerous faults fast.
• OEM-ready compatibility designed to work seamlessly with matching Siemens OEM load centers and panelboards for a cohesive, code-compliant installation.
• Versatile for multiple contexts suitable for residential, commercial, and light industrial applications where reliable 2-pole 240V protection is required.

Technical snapshot

• Manufacturer: Siemens
• Part Number: B220HH
• 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 scenarios

In residential panels, the B220HH is a reliable choice for circuits that require 240V protection, such as shared-appliance branches or dedicated equipment feeds. In commercial and light industrial settings, it provides robust protection for critical circuits without sacrificing space or ease of maintenance. The bolt-on design makes it especially suitable for panel upgrades or replacement in existing installations where a secure, vibration-resistant connection matters most.

Practical benefits that matter

• Minimize downtime with dependable trip performance that’s consistent across environmental conditions.
• Protect wiring and connected equipment from overcurrent and short circuits, helping to extend the life of your electrical installation.
• Maintain panelboard integrity with a matching Siemens solution that aligns with standard OEM assemblies.

Installation and compatibility tips

Verify panelboard compatibility with the B220HH’s bolt-on mounting style and 2-pole 240V configuration before replacement. When installing, ensure the connection to the bus is clean and tightened to the appropriate specification to preserve the integrity of the vibration-resistant mount. Use this breaker in applications where 240V single-branch protection is required and where a stable thermal-magnetic trip response is preferred for consistent protection across varying loads.

With the Siemens B220HH, you’re choosing a proven, purpose-built solution for reliable branch circuit protection. It’s built to integrate smoothly with compatible panelboards and load centers, delivering dependable performance for years of service in residential, commercial, and light industrial environments.