{"product_id":"siemens-qa120afccsa","title":"Siemens QA120AFCCSA 120A 1-Pole 120 V Circuit Breaker Potential Transformer","description":"\u003cdiv\u003eSiemens QA120AFCCSA is a purpose-built protective solution for 120 V residential and light commercial electrical systems. This 120 A, 1-pole circuit breaker is designed to guard single‑phase circuits against overcurrent, helping electrical panels run safely and reliably. With the exact part number QA120AFCCSA, you’re selecting a device that’s engineered to fit Siemens panels that require this configuration, reducing installation guesswork and ensuring code-compliant protection. What makes this breaker stand out\n- Precise compatibility: Part Number QA120AFCCSA guarantees a drop-in fit for Siemens panels that call for a 1-pole, 120 V, 120 A protection device, streamlining replacement and upgrades.\n- Robust, field-tested performance: Siemens engineering underpins consistent trip characteristics and durable contact surfaces, delivering dependable operation over many years of cycling.\n- Ideal for single‑phase circuits: Perfect for protecting outlets, lighting runs, and other 120 V branch circuits in homes and small businesses.\n- Clear identification for service calls: The labeling and ratings are printed on the unit for quick verification during installations or inspections.\n- Ready for metering\/system protection setups: The inclusion of “potential transformer” in the product context means it can align with protection and metering schemes that rely on transformer-based monitoring in compatible panels. Key specs at a glance\n- Current rating: 120 A\n- Poles: 1\n- Voltage rating: 120 V\n- Part Number: QA120AFCCSA\n- System context: 1-pole, single‑phase 120 V circuits; suitable for integration with standard Siemens panel configurations Who’s this for\n- Electricians stocking reliable, ready-to-install 120 V protection devices for residential or light commercial panels\n- Maintenance teams performing routine panel replacements or upfits that require exact Siemens QA-series breakers\n- Property owners and facilities managers seeking durable, easy-to-source components for ongoing electrical safety and compliance Use cases and practical tips\n- Replacement scenario: When a 120 V, single-pole breaker trips or fails, this QA120AFCCSA unit provides a like-for-like replacement that preserves panel continuity and protection characteristics.\n- New circuit protection: Install in appropriate Siemens panels to safeguard dedicated 120 V circuits such as lighting, receptacle runs, or small-appliance circuits.\n- System protection alignment: In panels configured with metering or protection schemes that use potential transformers, this breaker fits the required form factor while maintaining reliable overcurrent protection. Safety and compatibility notes\n- Always verify that your panel listing includes the QA120AFCCSA\/QA-series breakers and that a 1-pole, 120 V, 120 A device is appropriate for the circuit.\n- Follow standard electrical safety practices and applicable codes. If in doubt, consult a licensed electrician to ensure proper sizing, mounting, and wiring. Add this Siemens QA120AFCCSA 120 A, 1-Pole, 120 V circuit breaker to your project or toolkit to ensure exact compatibility, durable protection, and straightforward maintenance for your 120 V electrical distribution needs.\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46423584145570,"sku":"QA120AFCCSA","price":2415.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/siemens-qa120afccsa","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}