Siemens Q150 50A 1P 120V Circuit Breaker | AmpState

Siemens Q150 50A 1P 120V circuit breaker is built for everyday electrical work, delivering dependable overcurrent protection in panelboards, load centers, and electrical distribution systems. Designed for retrofit projects and ongoing maintenance, this part keeps your installations consistent by preserving the exact part number you rely on.

• Exact part number consistency supports smooth retrofits and scheduled maintenance across multiple panels without mismatched replacements.
• Specifications at a glance: 50 A, 1 pole, 120 V, manufactured by Siemens, Part Number Q150.
• Versatile protection for panelboards and load centers ensuring reliable circuit protection where overcurrent risk is present.
• Reliability for service teams readily available from AmpState to keep your projects on track and reduce downtime.

Use cases include upgrading or replacing worn breakers in existing Siemens installations, performing retrofit work where the Q150’s exact specification is required, and pre-planning maintenance across a portfolio of panelboards and load centers. This 1P 50A at 120V design is well-suited for circuits that demand strong protection with minimal footprint, enabling safer, more efficient electrical distribution.

If you’re unsure about fit, AmpState is ready to help confirm compatibility and ensure you’re ordering the right part for your specific panel configuration. Need help matching a part number or confirming compatibility? Message us and we’ll help you verify the fit.