{"product_id":"square-d-fcj34020-circuit-breaker","title":"Square D | FCJ34020 | Circuit Breaker | 20A | 3-Pole | 480V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eSquare D FCJ34020 is a 20 Amp, 3-Pole, 480-Volt bolt-on circuit breaker engineered for robust, field-ready performance in industrial electrical panels. This unit shines in maintenance, retrofit, and replacement scenarios where exact specifications matter—making it the precise match when your system calls for a bolt-on 3-pole device in a 480V circuit.\u003c\/p\u003e \u003cp\u003eDesigned for reliability in demanding environments, the FCJ34020 fits squarely in Square D installations that require strict amperage control and secure mounting. The bolt-on design provides a physically solid connection that helps resist loosening in vibration-prone equipment and busy service bays, while simplifying on-site installation and future servicing.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 20 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 480 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e FCJ34020\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cp\u003e- Industrial control panels and switchboards that operate at 480 volts and require three separate poles for distributed loads.\u003c\/p\u003e\n\u003cp\u003e- Retrofit projects where older bolt-on breakers must be replaced with a matching 20A, 3-pole unit to maintain consistent protection and trip characteristics.\u003c\/p\u003e\n\u003cp\u003e- Maintenance and emergency field service where a direct part reference (FCJ34020) ensures quick, accurate replacement and minimizes downtime.\u003c\/p\u003e \u003ch3\u003eWhy this bolt-on choice stands out\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure mounting:\u003c\/strong\u003e The bolt-on configuration provides a sturdy, vibration-resistant hold that’s ideal for equipment with frequent start\/stop cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExact compatibility reference:\u003c\/strong\u003e When you reference FCJ34020, you’re aligning with the exact Square D spec required by many 480V, 3-pole installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStreamlined service:\u003c\/strong\u003e Field technicians appreciate the straightforward installation path of bolt-on breakers, reducing service time and errors.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eImportant compatibility note\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings match your panel design and electrical system. The part number FCJ34020 is the best reference for compatibility, and your panel’s labeling should indicate 3-pole, 480V bolt-on requirements for a clean match.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426639466658,"sku":"FCJ34020","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-fcj34020-circuit-breaker-20a-3-pole-480v-bolt-147.webp?v=1789599885","url":"https:\/\/www.ampstate.com\/products\/square-d-fcj34020-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}