Siemens QF120ACSA - 20 A, 120 V, 1-Pole Plug-In Circuit Breaker | AmpState

Siemens QF120ACSA is a 20A, 120V, 1-pole plug-in molded case circuit breaker designed to provide dependable branch circuit protection in panelboards and load centers.

• Fast plug-in connection enables quick installation and painless replacements, reducing panel downtime on service calls or upgrades.
• Thermal-magnetic trip unit delivers stable, repeatable protection against overcurrent and short-circuit faults, helping to prevent equipment damage and nuisance trips.
• OEM-compatible design ensures seamless integration with matching Siemens load centers and panelboards, simplifying upgrades and ensuring reliable performance.
• Versatile applications ideal for residential, commercial, and light industrial circuits that require dependable, immediate protection.

Technical specifications

• Manufacturer: Siemens
• Part Number: QF120ACSA
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 20 A
• Voltage rating: 120 V
• Number of poles: 1
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Why this breaker makes sense for your panel

When reliability and speed matter, the Siemens QF120ACSA stands out. The plug-in design cuts install time and reduces panel downtime during routine maintenance or emergency replacements. Its thermal-magnetic trip unit coordinates protection precisely with the electrical system, guarding against damaging faults while keeping nuisance trips to a minimum. Designed to work with Siemens’ own load centers and panelboards, it offers confident compatibility for upgrades, repairs, or new installations.

Ideal use scenarios

• New construction projects that benefit from fast, plug-in protection solutions in compact panel layouts.
• Residential service upgrades requiring dependable 20-amp branch-circuit protection.
• Commercial or light industrial circuits where quick replacements minimize downtime and service interruptions.
• Replacement of aging breakers in compatible Siemens panels to restore secure electrical protection quickly.

Choose the Siemens QF120ACSA for consistent, safe power distribution across your most important circuits—delivering straightforward installation, reliable protection, and lasting peace of mind.