{"product_id":"siemens-jd23b300","title":"Siemens JD23B300 300A 3-Pole 240 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens JD23B300 300A 3-Pole 240 V Circuit Breaker — a purpose-built protector for demanding three-phase power systems. With a robust 300 A current rating and three poles, this breaker is designed to reliably interrupt and isolate heavy loads in commercial and industrial environments, helping to guard equipment, wiring, and personnel from electrical faults. Part number JD23B300 identifies the exact model engineered for consistent performance in high-demand panels.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 300 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eModel\/part:\u003c\/strong\u003e JD23B300\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this 3-pole, 240V breaker stands out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrongtargeted protection for three-phase systems:\u003e The 3-pole configuration protects all three hot lines together, ensuring balanced protection across your three-phase electrical distribution.\u003c\/strongtargeted\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current discipline for demanding loads:\u003c\/strong\u003e At 300 A, it’s suited for main-disconnect roles or feeding substantial subpanels, motors, and other heavy equipment without compromising safety.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable, reliable design:\u003c\/strong\u003e Built to deliver dependable overcurrent protection in environments where uptime matters and electrical faults must be swiftly isolated.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExact model clarity for easy sourcing:\u003c\/strong\u003e Using the JD23B300 part number ensures you’re selecting the precise Siemens breaker tailored to your panel or system configuration.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal applications and use cases\u003c\/h2\u003e\n\u003cp\u003eDesigned for commercial and light industrial installations, the Siemens JD23B300 is well-suited for:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMain service disconnects in large electrical panels that distribute three-phase power\u003c\/li\u003e \u003cli\u003eProtection of heavy machinery and motor drives in manufacturing and processing facilities\u003c\/li\u003e \u003cli\u003eFeeding robust subpanels that supply high-demand equipment on separate branches\u003c\/li\u003e \u003cli\u003eSituations where balanced protection across all three phases is critical to prevent phase-to-phase faults\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eHow it helps you make safer, smarter electrical choices\u003c\/h2\u003e\n\u003cp\u003eChoosing the JD23B300 means prioritizing reliability and clear protection boundaries for complex power systems. By securing all three phases with a single, coordinated device, you reduce hot spots, limit fault propagation, and simplify maintenance checks. It’s a practical, forward-looking solution for systems that can’t afford unexpected outages or equipment damage from overcurrent.\u003c\/p\u003e \u003ch3\u003ePractical tips for optimal use\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eConfirm compatibility with your panel or distribution arrangement and ensure the panel supports JD-series breakers for straightforward installation.\u003c\/li\u003e \u003cli\u003ePair this breaker with routine maintenance: inspect connection points for tightness and verify clear labeling to prevent confusion during service work.\u003c\/li\u003e \u003cli\u003eFollow local electrical codes and have a qualified electrician verify correct sizing, mounting, and wiring practices for your specific installation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhether you’re upgrading a main disconnect, protecting a heavy-load distribution, or reinforcing a three-phase facility, the Siemens JD23B300 300A 3-Pole 240 V Circuit Breaker delivers precise, dependable overcurrent protection tailored to demanding power environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46423725670562,"sku":"JD23B300","price":510.0,"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-jd23b300","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}