{"product_id":"siemens-ll63b500","title":"Siemens LL63B500 500A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens LL63B500 is a rugged 500 A, 3-pole circuit breaker designed for reliable protection in three-phase power distributions up to 600 V. Built to withstand demanding industrial and commercial environments, this LL63B500 model preserves system integrity by interrupting all three phases simultaneously when faults occur.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LL63B500\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 500 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 600 V\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this matters\u003c\/h3\u003e\n\u003cp\u003eIn three-phase electrical systems, a coordinated trip across all phases is essential to prevent phase imbalance and potential damage to motors, drives, and downstream equipment. The LL63B500 delivers reliable, synchronized interruption, helping to protect feeders, transformers, and heavy loads from overloads and short circuits. With a 600 V rating, it is suitable for a wide range of commercial and industrial applications where robust, dependable protection is critical.\u003c\/p\u003e \u003ch3\u003eUse cases and ideal environments\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eIndustrial motor control centers and distribution panels with high-current three-phase loads\u003c\/li\u003e \u003cli\u003eCommercial facilities that rely on stable three-phase power for equipment, conveyors, and HVAC systems\u003c\/li\u003e \u003cli\u003eData centers or server rooms with three-phase power distribution requiring reliable fault isolation\u003c\/li\u003e \u003cli\u003eFactory floors and manufacturing lines where rapid, coordinated interruption protects both people and equipment\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical considerations\u003c\/h3\u003e\n\u003cp\u003eWhen selecting protection for three-phase circuits up to 500 A, the LL63B500 pairs well with Siemens panel ecosystems designed to accommodate LL63-type breakers. Ensure correct panel compatibility and follow all local electrical codes during installation. For maintenance and longevity, rely on standard electrical practices, including periodic inspection of terminations and verification of proper torque on connections.\u003c\/p\u003e \u003ch3\u003eWhat you gain\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReliable 3-pole protection for high-current, three-phase systems\u003c\/li\u003e \u003cli\u003eClear protection up to 600 V, enabling safe interruption of faults on diverse installations\u003c\/li\u003e \u003cli\u003eSpecific model clarity with part number LL63B500 for straightforward sourcing and replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46423113367714,"sku":"LL63B500","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-ll63b500-500a-3-pole-600-v-circuit-breaker-867.webp?v=1789271356","url":"https:\/\/www.ampstate.com\/products\/siemens-ll63b500","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}