{"product_id":"eaton-br340-40a-240v-3-pole-plug-in-circuit-breaker","title":"Eaton BR340 - 40 A, 240 V, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Eaton BR340 — a 40A, 240V, 3-pole plug-in molded case circuit breaker engineered for dependable branch-circuit protection in panelboards and load centers. This unit combines a fast plug-in connection with a thermal-magnetic trip design to deliver stable, repeatable protection for everyday electrical loads, while simplifying upgrades and replacements in busy electrical rooms.\u003c\/p\u003e \u003ch3\u003eFast, reliable protection with plug‑in ease\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e enables quick installation and simple replacement, minimizing downtime during panel upgrades or service work.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal‑magnetic trip unit\u003c\/strong\u003e provides stable protection against both overcurrent and short-circuit events, reducing nuisance trips and preserving circuit integrity.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole design\u003c\/strong\u003e ensures synchronized tripping on 3‑phase systems, maintaining balance and safety across the entire load center.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM panel compatibility\u003c\/strong\u003e is designed to align with matching Eaton load centers and panelboards for a secure fit and reliable performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e suitable for residential, commercial, and light industrial environments where dependable protection matters.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer\u003c\/strong\u003e: Eaton\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: BR340\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: 40 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e: 240 V\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: Plug-in\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 panelboards and load centers that require robust, reliable branch-circuit protection.\u003c\/li\u003e \u003cli\u003eRetrofits and replacements in residential service panels or light commercial panels where quick, secure plug-in installation saves time.\u003c\/li\u003e \u003cli\u003e3-phase systems in small to mid-size commercial and light industrial environments needing coordinated protection across all poles.\u003c\/li\u003e \u003cli\u003eSubpanels and main distribution panels where compatible OEM components help ensure consistent performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eDesigned to \u003cstrong\u003eminimize install time\u003c\/strong\u003e and maximize uptime with a straightforward plug-in approach.\u003c\/li\u003e \u003cli\u003e“\u003cstrong\u003eThermal-magnetic protection\u003c\/strong\u003e” delivers predictable trip behavior under normal loading and surge events, protecting downstream equipment.\u003c\/li\u003e \u003cli\u003eCompatibility with \u003cstrong\u003eEaton OEM panels\u003c\/strong\u003e means fewer fit issues and a cleaner, more reliable panel deployment.\u003c\/li\u003e \u003cli\u003eTargeted for \u003cstrong\u003eresidential, commercial, and light industrial\u003c\/strong\u003e use, bridging everyday circuit protection with durable, field‑tested performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and practical tips\u003c\/h3\u003e\n\u003cp\u003eWhen upgrading or replacing with the BR340, ensure the panelboard is compatible with BR-series plug-in breakers and rated for 240 V, 3‑pole protection. Follow standard electrical practices: verify power is off before installation, seat the breaker firmly in the bus and mounting rails, and confirm proper alignment with the panel’s busbar. Use the correct tools and torque specifications for secure lug connections, and keep spare breakers of the same type on hand for quick future replacements.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349499891874,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton_breaker_and_panels_798dc324-574a-495c-9236-a487baff1334.png?v=1764148292","url":"https:\/\/www.ampstate.com\/products\/eaton-br340-40a-240v-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}