{"product_id":"siemens-jkl3b275","title":"Siemens JKL3B275 275A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens JKL3B275 is a rugged, three-pole circuit breaker designed to protect demanding three-phase electrical systems. With a 275 A current rating and a 600 V maximum voltage, this unit delivers reliable overcurrent protection for heavy-load equipment and critical processes in industrial and commercial settings.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCurrent rating: 275 A\u003c\/li\u003e \u003cli\u003ePoles: 3 (three-pole)\u003c\/li\u003e \u003cli\u003eVoltage rating: 600 V\u003c\/li\u003e \u003cli\u003ePart number: JKL3B275\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy a 3-pole design matters\u003c\/h3\u003e\n\u003cp\u003eIn three-phase networks, a 3-pole breaker performs synchronized disconnection of all phases, reducing the risk of phase imbalances and protecting interconnected motors, drives, and feeders from fault conditions. The JKL3B275 provides consistent, coordinated protection across the entire circuit.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cp\u003ePerfect for protecting three-phase motors, conveyor systems, HVAC units, and other heavy-load equipment in manufacturing floors, data centers, and large commercial installations. This breaker is suited for panel boards and distribution setups that require robust, reliable fault protection at up to 600 V.\u003c\/p\u003e \u003ch3\u003eWhat you gain with Siemens reliability\u003c\/h3\u003e\n\u003cp\u003eBuilt by Siemens, the JKL3B275 embodies durable construction and predictable performance. Expect durable switching, stable trip behavior under overloads, and longevity that supports maintenance cycles in demanding environments.\u003c\/p\u003e \u003ch3\u003ePractical installation notes\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify that the system voltage stays within the 600 V rating\u003c\/li\u003e \u003cli\u003eCoordinate protection with appropriate conductor sizing and upstream protections for safe, code-compliant operation\u003c\/li\u003e \u003cli\u003ePlan for routing and mounting in spaces typical of industrial panels or distribution enclosures\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46423082500258,"sku":"JKL3B275","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-jkl3b275-275a-3-pole-600-v-circuit-breaker-555.webp?v=1789267942","url":"https:\/\/www.ampstate.com\/products\/siemens-jkl3b275","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}