{"product_id":"siemens-jkl3b300","title":"Siemens JKL3B300 300A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens JKL3B300 300A 3-Pole 600 V Circuit Breaker — a purpose-built solution for safeguarding three-phase power in demanding commercial and industrial environments. With part number JKL3B300, this Siemens breaker delivers dependable protection for distribution panels where reliable, coordinated phase protection matters most.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\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 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e JKL3B300\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this Siemens breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrongthree-pole protection\u003e ensures synchronized shutoff across all three phases, reducing the risk of imbalanced loads and equipment damage in three-phase systems.\u003c\/strongthree-pole\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong600 v capability\u003e aligns with standard industrial distributions, offering robust protection for equipment operating at higher voltage levels often found in commercial facilities.\u003c\/strong600\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongoem reliability\u003e from Siemens means consistent performance, compatibility with Siemens panels and assemblies, and a track record you can trust in mission-critical environments.\u003c\/strongoem\u003e\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMain protection for three-phase service panels in warehouses, manufacturing lines, and distribution centers\u003c\/li\u003e \u003cli\u003eProtecting large three-phase equipment and motors in industrial settings\u003c\/li\u003e \u003cli\u003e Backup protection in commercial electrical rooms that rely on stable, coordinated phase disruption prevention\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation, compatibility, and best practices\u003c\/h3\u003e\n\u003cp\u003eWhen selecting a breaker, verify that the JKL3B300 matches your panel’s acceptance and that its 3-pole, 600 V rating fits your system’s design. For best results, install the breaker in accordance with all applicable electrical codes and manufacturer guidelines. Keep a careful eye on labeling and part numbers to ensure continued system protection and coordination with other protective devices in the circuit.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46423082434722,"sku":"JKL3B300","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-jkl3b300-300a-3-pole-600-v-circuit-breaker-670.webp?v=1789267934","url":"https:\/\/www.ampstate.com\/products\/siemens-jkl3b300","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}