Siemens Q120HH00S01 20A 1P 120V Circuit Breaker, Shunt Trip | AmpState

The Siemens Q120HH00S01 is a compact, reliable shunt-trip circuit breaker designed for 1-pole protection at 120V. With a 20A rating, it provides precise overcurrent protection for panelboards, load centers, and electrical distribution networks, helping you keep critical circuits safe and uptime consistent. This part is specifically valued for its direct part-number match, making it a dependable choice for maintenance teams, panel builders, and spare inventory where accuracy matters. Key features

• Part Number: Q120HH00S01
• Type: Shunt-trip circuit breaker for remote disconnection
• Amperage: 20 A
• Poles: 1
• Voltage: 120 V
• Applications: panelboards, load centers, electrical distribution
• Brand: Siemens
• Availability: Available from AmpState
• Direct part-number match for quick, reliable replacement

Why this matters for your electrical protection - Shunt-trip capability enables rapid remote disconnection, adding an important safety layer for equipment rooms, control panels, and areas requiring quick shutdowns in response to alarms or interlocks. - A single-pole design with a 20A rating fits common branch circuits, delivering targeted protection without unnecessary footprint expansion. - The exact Q120HH00S01 part number ensures compatibility with Siemens panels and systems that rely on exact matching components, reducing the risk of misfits and compatibility issues. Ideal use scenarios - Maintenance and stocking: technicians keep a ready-to-install spare for quick panel repair or upgrade projects without hunting for mismatched parts. - New panel builds: panel builders select components with precise part-number alignment to streamline assembly and field serviceability. - Remote shutdown workflows: facilities relying on safety interlocks or remote-control trips can leverage the shunt-trip feature for rapid, controlled disconnection. Compatibility and practical tips - Confirm the target panel or distribution system supports the Siemens Q120HH00S01 1P 120V 20A shunt-trip configuration to ensure proper fit and electrical characteristics. - When replacing a failed unit, reference the exact part number Q120HH00S01 to guarantee seamless integration with existing circuit layouts and control wiring. - If you’re unsure about fit, AmpState offers assistance to verify compatibility and confirm that this breaker matches your panel’s requirements. Technical snapshot - Manufacturer: Siemens - Part Number: Q120HH00S01 - Circuit Type: Shunt-trip, 1-pole - Amperage: 20 A - Voltage: 120 V - Common Applications: panelboards, load centers, electrical distribution - Availability: AmpState This Siemens Q120HH00S01 shunt-trip circuit breaker delivers precise protection, remote-trip capability, and reliable compatibility for professionals who demand accuracy and performance in electrical distribution systems.