Siemens BA120AFC 20A 1P 120V Circuit Breaker, AFCI, Bolt-On | AmpState

Discover reliable arc-fault protection with the Siemens BA120AFC 20A 1P 120V circuit breaker. Engineered for everyday electrical work, this AFCI bolt-on breaker protects panelboards, load centers, and electrical distribution systems while delivering fast, field-ready installation. It’s a smart choice for maintenance teams, panel builders, and spare inventory where a direct part-number match matters.

• AFCI protection: Advanced arc-fault detection interrupts power to mitigate arc faults, helping reduce fire risk on sensitive circuits.
• Bolt-On installation: Quick, secure mounting design minimizes downtime during replacements or panel upgrades.
• 1-pole, 20 A, 120 V: Fits standard single-circuit loads common in residential and light commercial electrical distribution.
• Direct part-number match: Ensures compatibility when sourcing replacements or stocking spare inventory for consistent, predictable installs.
• Ideal for dedicated applications: Perfect for maintenance crews, panel builders, and projects where precise part compatibility matters.

Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.

Specifications

• Manufacturer: Siemens
• Part Number: BA120AFC
• Product Type: Circuit Breaker (AFCI)
• Amperage: 20 A
• Poles: 1
• Voltage: 120 V
• Mounting: Bolt-On

Available from AmpState, the BA120AFC combines Siemens reliability with practical, field-ready design. Whether you’re outfitting a new panel installation or replacing a worn-out breaker, this AFCI bolt-on unit delivers dependable protection and straightforward service—backed by a direct-path to compatibility and support.