{"product_id":"siemens-cle63b040","title":"Siemens CLE63B040 40A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens CLE63B040 40A 3-Pole 600 V Circuit Breaker is a robust, three-phase protective device designed to shield your electrical distribution from overloads and short circuits. Built with Siemens engineering rigor, this breaker delivers dependable interruption for demanding commercial and industrial panels.\u003c\/p\u003e \u003ch2\u003eKey specs at a glance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 40 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3 (three-pole design for simultaneous phase protection)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e CLE63B040\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this 3-pole, 40 A breaker stands out\u003c\/h2\u003e\n\u003cp\u003eIn three-phase electrical systems, a 3-pole breaker ensures all phases trip together, preventing unbalanced faults that can damage motors and downstream equipment. The 40 A rating precisely protects branch circuits and motor loads without unnecessary nuisance tripping, making it well-suited for motor control applications, HVAC equipment, and other three-phase processes where reliability matters.\u003c\/p\u003e \u003ch2\u003eApplications and ideal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eCommercial and light-industrial electrical panels requiring solid three-phase protection\u003c\/li\u003e \u003cli\u003eMotor control centers and equipment rooms with three-phase loads\u003c\/li\u003e \u003cli\u003eHVAC systems, conveyors, and processing lines that run on 3-phase power\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical installation and maintenance notes\u003c\/h2\u003e\n\u003cp\u003eInstall the CLE63B040 within compatible Siemens panelboards and distribution systems designed for three-pole protection. It integrates into standard layouts that protect three-phase circuits up to 600 V. For best results, pair this breaker with appropriately sized conductors and a coordinated protection strategy to ensure reliable trips when faults occur.\u003c\/p\u003e \u003ch2\u003eWhy choose Siemens for this protection\u003c\/h2\u003e\n\u003cp\u003eChoosing a Siemens circuit breaker means tapping into a lineage of dependable protection and consistent performance in real-world environments. The CLE63B040 is designed to meet the needs of facilities that rely on uninterrupted three-phase power, offering clear, predictable behavior when faults arise and straightforward maintenance when parts need replacement.\u003c\/p\u003e \u003cp\u003eReady to safeguard your three-phase circuits with precise, reliable protection? The Siemens CLE63B040 40A 3-Pole 600 V Circuit Breaker is built to fit and perform where it matters most—keeping systems running smoothly and safely.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46423589519522,"sku":"CLE63B040","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/siemens-cle63b040","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}