{"product_id":"siemens-ee3b040-circuit-breaker","title":"Siemens | EE3B040 | Circuit Breaker | 40A | 3-Pole | 240V | 10kA | Bolt-On","description":"\u003cdiv\u003eSiemens EE3B040 Circuit Breaker delivers reliable protection for 240V, three-phase electrical systems with a solid, bolt-on mounting design. Built for maintenance, retrofit, and replacement projects, this 3-pole 40A device brings exact Siemens specs to your panel, helping you maintain safe, continuous operation in demanding environments. \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 40A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInterrupt rating:\u003c\/strong\u003e 10kA\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e EE3B040\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWho this is for\u003c\/h2\u003e\n\u003cp\u003eFacilities managers, electrical contractors, and maintenance teams who work with Siemens panels in commercial or light industrial settings will appreciate the clean compatibility of the EE3B040. When you need a precise match for a retrofit or replacement, this 3-pole, 40A breaker provides a straightforward path to restoring protection without unnecessary fittings or guesswork.\u003c\/p\u003e \u003ch2\u003eWhy this bolt-on breaker stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure, vibration-resistant mounting:\u003c\/strong\u003e The bolt-on design creates a robust connection that stays clamped in place in demanding environments, reducing the likelihood of loose connections over time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDedicated Siemens compatibility:\u003c\/strong\u003e Engineered to align with Siemens panel architectures, ensuring reliable operation and easier serviceability when you’re maintaining complex electrical systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear signaling for medium-load circuits:\u003c\/strong\u003e With 40A capacity and 240V operation, it’s well-suited for protecting motors, HVAC feeders, and other multi-phase loads common in commercial spaces.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh fault protection:\u003c\/strong\u003e The 10kA interrupt rating provides a strong margin for fault current scenarios typical of industrial and mechanical equipment, helping to isolate issues quickly and safely.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and compatibility notes\u003c\/h2\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings to ensure seamless replacement. The part number EE3B040 is your best reference for compatibility, and using this exact model helps minimize surprises during installation. Follow your panel manufacturer’s torque and installation guidelines to maximize connection integrity and safety.\u003c\/p\u003e \u003ch2\u003ePractical use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eRetrofit projects in service entrances or distribution panels where a 3-pole, 40A 240V breaker is required.\u003c\/li\u003e \u003cli\u003eReplacement in Siemens-equipped panels where maintaining identical protection characteristics simplifies maintenance history and spare parts inventory.\u003c\/li\u003e \u003cli\u003eProtection for three-phase feeders powering motors, compressors, or 240V-driven equipment in commercial facilities.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eEquip your panel with the Siemens EE3B040 to ensure precise protection, reliable operation, and a straightforward path to future serviceability in any 3-phase 240V circuit environment.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46424725749922,"sku":"EE3B040","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/siemens-ee3b040-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}