{"product_id":"square-d-ejb34020-20a-480v-3-pole-bolt-on-circuit-breaker","title":"Square D EJB34020 - 20 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D EJB34020 — a reliable 20A, 480V, 3-pole bolt-on molded case circuit breaker designed to protect your electrical builds with precision. Built for panelboards and load centers, this unit secures your 3-phase distribution with a rugged bolt-on mounting that creates a rigid, vibration-resistant bus connection, so protection stays steady no matter the environment.\u003c\/p\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e ensures a tight, vibration-resistant bus connection that holds up in busy electrical rooms and equipment cabinets.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection: the thermal element responds to gradual overloads, while the magnetic element snaps into action for short circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e works seamlessly with matching Square D OEM load centers and panelboards, simplifying replacement and upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatility across applications\u003c\/strong\u003e suitable for residential, commercial, and light industrial settings where 3-phase 480V distribution is standard.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e EJB34020\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 20A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 480V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting Style:\u003c\/strong\u003e Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eNew installations in commercial spaces with 3-phase 480V distribution — industrial panels, data centers, and large HVAC systems benefit from reliable protection.\u003c\/li\u003e \u003cli\u003eRetrofits or replacements in OEM load centers and panelboards where a matching Square D unit is required for compatibility.\u003c\/li\u003e \u003cli\u003eEnclosures in environments with vibration or movement where a secure bolt-on connection minimizes loosening and maintains protection performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho should consider the Square D EJB34020\u003c\/h3\u003e\n\u003cp\u003eElectrical contractors, facilities managers, and panel-building technicians looking for a proven, OEM-compatible solution for dependable overcurrent and short-circuit protection in 3-phase systems will find this breaker a precise fit. It’s engineered to coordinate with existing Square D panels, reducing wiring complexity and downtime during installation or upgrades.\u003c\/p\u003e \u003ch3\u003ePractical notes and optimization tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eConfirm panelboard compatibility with the EJB34020’s bolt-on mounting to ensure a proper fit and secure connection.\u003c\/li\u003e \u003cli\u003eUse in applications where stable 3-pole protection at 480V is required to safeguard motors, controllers, and other 3-phase equipment.\u003c\/li\u003e \u003cli\u003ePlan replacements around OEM specifications to maintain protective coordination and warranty integrity.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Square D EJB34020 for dependable, three-phase protection that stands up to vibration and demanding industrial environments. Order today through AmpState to ensure quick availability and OEM-aligned performance in your next panel or load center project.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355209027746,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-ejb34020-20-a-480-v-3-pole-bolt-on-circuit-breaker-357.webp?v=1788741611","url":"https:\/\/www.ampstate.com\/products\/square-d-ejb34020-20a-480v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}