Siemens B115H - 15 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState

The Siemens B115H is a dependable 15A, 120V, 1-pole bolt-on molded case circuit breaker designed to shield your electrical system from overloads and short circuits. Built for panelboards and loadcenters, it delivers consistent, reliable protection across residential, commercial, and light industrial applications.

Why the Siemens B115H stands out

• Secure bolt-on mounting — a rigid, vibration-resistant bus connection that stays solid under load and over time, reducing movement that can affect performance.
• Thermal-magnetic trip unit — combines temperature sensing and magnetic trip to provide stable, repeatable protection even as environmental conditions or inrush currents vary.
• OEM-compatible design — engineered to pair with matching Siemens OEM load centers and panelboards for a seamless, dependable fit.
• Versatile protection for multiple settings — ideal for residential, commercial, and light industrial circuits that require reliable branch circuit overcurrent and short-circuit protection.

Technical snapshot

• Manufacturer: Siemens
• Part Number: B115H
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 15A
• Voltage Rating: 120V
• Number of Poles: 1
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Practical use and benefits

In homes, offices, or light industrial spaces, the B115H protects individual branch circuits powering lights, outlets, pumps, or small motors. Its bolt-on design is ideal for retrofit projects where a secure, vibration-resistant connection to the panel bus is essential, while the thermal-magnetic trip ensures a dependable response to overloads without nuisance trips during normal inrush conditions.

If you’re upgrading or replacing a breakers’ family in compatible panelboards, the B115H offers a precise, reliable fit that supports long-term performance and electrical safety. With Siemens engineering backing, you gain predictable trip behavior, ease of maintenance, and compatibility across standard Siemens load centers and panelboards.