{"product_id":"square-d-bda160403-40a-1-pole-plug-in-circuit-breaker","title":"Square D BDA160403 - 40 A, 1-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D BDA160403 is a 40 A, 1-pole plug-in molded case circuit breaker built to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Designed for reliability in everyday electrical systems, it plugs directly into compatible Square D panels for fast, streamlined service and reduced downtime.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e: Quickly install or replace the breaker without complex wiring steps, helping you get systems back up and running with minimal interruption.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e: Combines precise thermal protection with magnetic short-circuit detection to deliver stable, repeatable protection performance across a range of operating conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e: Engineered to fit and perform with matching Square D load centers and panelboards, ensuring reliable coordination within your electrical distribution system.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for multiple environments\u003c\/strong\u003e: Suitable for residential, commercial, and light industrial applications where solid, fast-acting circuit protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eKey benefits and real-world value\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eReduces downtime\u003c\/strong\u003e: The plug-in design minimizes installation time and makes replacements straightforward during maintenance or upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePredictable protection\u003c\/strong\u003e: The thermal-magnetic mechanism provides immediate response to short circuits while limiting nuisance trips during normal inrush conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSystem compatibility\u003c\/strong\u003e: Built to integrate smoothly with standard Square D panelboards and loadcenters, helping you maintain proper breaker coordination and labeling accuracy.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eResidential service panels and subpanels needing reliable branch circuit protection for lighting, outlets, and small-appliance circuits.\u003c\/li\u003e \u003cli\u003eCommercial light-duty electrical systems where quick replacement and dependable protection are priorities.\u003c\/li\u003e \u003cli\u003eLight industrial applications that require a robust plug-in solution with precise overcurrent control.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecifications at a glance\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart Number: BDA160403\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 40 A\u003c\/li\u003e \u003cli\u003eNumber of Poles: 1\u003c\/li\u003e \u003cli\u003eMounting Style: Plug-in\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePractical tips for optimum performance\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eVerify panel compatibility before installation to ensure a secure plug-in fit and proper trip coordination with adjacent breakers.\u003c\/li\u003e \u003cli\u003ePlan for easy future maintenance by clearly labeling circuits protected by the BDA160403 and keeping spare units on hand for quick swaps.\u003c\/li\u003e \u003cli\u003eKeep within rated ampacity and avoid loading circuits beyond their designed capacity to maintain consistent protection and prevent nuisance trips.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhether you’re updating an aging panel, performing a panelboard upgrade, or outfitting a new installation, the Square D BDA160403 40 A 1-pole plug-in circuit breaker offers precise protection, rapid installation, and dependable performance across residential, commercial, and light industrial applications. Trust AmpState to provide genuine Square D replacements that keep your electrical systems safe, compliant, and operating at their best.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355171410082,"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-bda160403-40-a-1-pole-plug-in-circuit-breaker-ampstate-890.webp?v=1788738315","url":"https:\/\/www.ampstate.com\/products\/square-d-bda160403-40a-1-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}