{"product_id":"square-d-fa34020-20a-3-pole-plug-in-circuit-breaker","title":"Square D FA34020 - 20 A, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSquare D FA34020 stands out as a rugged, plug-in molded case circuit breaker designed to protect branch circuits in panelboards and load centers. At 20 amps and 3-pole, this unit delivers dependable, trip-ready protection for multi-wire and three-phase configurations, making it a practical choice for both small commercial installations and light industrial panels.\u003c\/p\u003e \u003ch3\u003eKey advantages that matter in the field\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e enables quick installation and effortless replacement, minimizing panel downtime during upgrades or maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection—responding to overcurrent with calibrated thermal sensing and rapid magnetic trip for short circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole design\u003c\/strong\u003e protects all three hot legs of compatible systems, ideal for 3-phase equipment or shared-neutral applications in the right panel environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e is specifically matched for Square D loadcenters and panelboards, ensuring reliable fit and electrical performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applicability\u003c\/strong\u003e suitable for residential, commercial, and light industrial setups where branch circuit protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cp\u003eManufacturer: Square D\u003cbr\u003e\nPart Number: FA34020\u003cbr\u003e\nType: Thermal-magnetic molded case circuit breaker (MCCB)\u003cbr\u003e\nAmperage Rating: 20A\u003cbr\u003e\nNumber of Poles: 3\u003cbr\u003e\nMounting Style: Plug-in\u003cbr\u003e\nApplication: Branch circuit overcurrent and short-circuit protection\u003c\/p\u003e \u003ch3\u003eWhy it matters for your electrical system\u003c\/h3\u003e\n\u003cp\u003eIn any panel deployment, protection isn’t just about stopping faults—it’s about predictable behavior and quick serviceability. The FA34020’s thermal-magnetic mechanism delivers accurate, repeatable tripping under overloads while swiftly interrupting faults that could threaten wiring insulation or connected equipment. The plug-in design simplifies upgrades and replacements, reducing labor time and panel disruption. When paired with compatible OEM load centers, this breaker maintains coordinated protection across the distribution network, helping you meet code expectations and improve overall system reliability.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eThree‑phase machinery or motors in light industrial panels that require solid 20A protection on three hot legs.\u003c\/li\u003e \u003cli\u003eResidential or commercial subpanels where a compact, plug‑in MCCB is preferred for easy servicing.\u003c\/li\u003e \u003cli\u003ePanelboard expansions or retrofits that demand quick swaps without rewiring or panel removal.\u003c\/li\u003e \u003cli\u003eLoad centers and distribution panels that prioritize precise protection curves and dependable trip performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical tips for installers and maintainers\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify panel compatibility with Square D FA34020 and ensure the bus stab alignment before seating the breaker.\u003c\/li\u003e \u003cli\u003eWhen replacing an aging unit, use the same amperage rating (20A) to preserve protection coordination with downstream devices.\u003c\/li\u003e \u003cli\u003eStore spare plug-in breakers in a clean, dry environment to prevent coating residue or corrosion on contacts that could affect performance.\u003c\/li\u003e \u003cli\u003eDocument part numbers (FA34020) in maintenance logs to streamline future service and panelboard audits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor reliable, easy-to-service branch circuit protection with proven performance in a wide range of panel environments, the Square D FA34020 20A 3-Pole Plug-In Circuit Breaker from AmpState delivers a precise, durable solution engineered to keep electrical systems safe and available when it matters most.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355219710114,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/schnieder_and_square_d_breaker_and_panel_244960ba-630b-46ba-a7a7-7aa27f386104.png?v=1764690479","url":"https:\/\/www.ampstate.com\/products\/square-d-fa34020-20a-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}