Siemens B11500S01 - 15 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState

Siemens B11500S01: a compact, dependable solution for all your branch-circuit protection needs. This 15A, 120V, 1-pole bolt-on molded case circuit breaker is purpose-built to deliver consistent protection in panelboards and load centers, keeping electrical systems safe and reliable in everyday use. Why this breaker stands out - Secure bolt-on mounting: Designed for a rigid, vibration-resistant bus connection, reducing the risk of loose contacts that can cause arcing or nuisance trips in panels installed in busy commercial or residential spaces. - Thermal-magnetic trip unit: Combines thermal overload sensing with magnetic instantaneous trip, delivering stable, repeatable protection curves that respond quickly to short circuits and sustained overcurrents. - Molded case durability: Built to withstand the demands of electrical distribution environments, providing long-term reliability in panelboards and load centers. - OEM-compatible: Specifically designed to be compatible with matching Siemens loadcenters and panelboards, ensuring proper fit, electrical characteristics, and coordinated protection. - Versatile applications: Ideal for residential panels, small commercial installations, and light industrial setups where dependable branch circuit protection is essential. Technical snapshot - Manufacturer: Siemens - Part Number: B11500S01 - Type: Thermal-magnetic molded case circuit breaker - Amperage Rating: 15A - Voltage Rating: 120V - Number of Poles: 1 - Mounting Style: Bolt-on - Primary Application: Branch circuit overcurrent and short-circuit protection Who should consider this breaker? - Homeowners upgrading or stocking spare parts for Siemens-compatible panels - Electricians wiring or maintaining residential, commercial, or light industrial electrical systems - Facilities managers seeking reliable, easy-to-install protection in panelboards and load centers Practical use and installation tips - Verify panel compatibility with Siemens OEM loadcenters before installation to ensure seamless trip coordination and compatibility. - Use the bolt-on mounting to secure a solid bus connection, especially in environments with vibrations or movement. - For new installations, pair the B11500S01 with the appropriate Siemens panelboard to maintain consistent trip characteristics across the distribution layout. - When replacing a failed breaker, confirm that the 15A rating matches the circuit’s load requirements and that the slot and bus connections align with the panel’s design. The Siemens B11500S01 is more than a component—it's a proactive, durable choice for protecting critical circuits. With its precise thermal-magnetic protection, solid bolt-on installation, and OEM alignment, it offers dependable performance you can trust across residential, commercial, and light industrial settings.