{"product_id":"siemens-jl3b350-circuit-breaker","title":"Siemens | JL3B350 | Circuit Breaker | 350A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens JL3B350 Circuit Breaker — a robust, three-pole protection device engineered for demanding industrial panels. Rated at 350A and 600V, this bolt-on breaker is ideal for maintenance, retrofit, and replacement projects where exact specs matter. The JL3B350 is the go-to choice when you need reliable, field-ready protection that aligns with existing Siemens architectures.\u003c\/p\u003e \u003ch3\u003eWhy this 3-Pole, 350A, 600V bolt-on breaker stands out\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-On mounting for secure, fast installation\u003c\/strong\u003e: reduces install time and ensures solid electrical contact without special tools.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole protection\u003c\/strong\u003e: provides simultaneous protection for all phases in a three-phase system, helping prevent unbalanced loads and faults.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current capability\u003c\/strong\u003e: 350A rating supports heavy-duty circuits common in industrial equipment and distribution panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600V insulation and compatibility\u003c\/strong\u003e: suited for standard industrial distribution networks, with clear part-number-based compatibility references.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number JL3B350 as the best reference\u003c\/strong\u003e: use this identifier to verify fit with your panel, simplifying cross-references during ordering.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePerfect for maintenance, retrofit, and replacement\u003c\/h3\u003e \u003cp\u003eWhether you’re upgrading an older panel, refreshing aging protection, or stocking up for planned maintenance, the JL3B350 delivers dependable circuit protection when you need it most. Its Siemens lineage means predictable performance and compatibility with Siemens-controlled infrastructure, reducing the risk of mismatched components during critical outages.\u003c\/p\u003e \u003ch3\u003eWho benefits most\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eFacilities engineers and maintenance teams upgrading three-phase panels\u003c\/li\u003e \u003cli\u003eService contractors performing on-site retrofits or replacements\u003c\/li\u003e \u003cli\u003eOEMs integrating Siemens protection in custom electrical assemblies\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical notes for safe, effective use\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eNotes: Confirm fit and ratings before ordering. The part number JL3B350 is the best reference for compatibility.\u003c\/li\u003e \u003cli\u003eBefore installation, verify the panel’s data sheet and ensure the bolt-on mounting aligns with your enclosure.\u003c\/li\u003e \u003cli\u003ePlan for proper torque and clearance to maintain safe operation and reliable tripping performance.\u003c\/li\u003e \u003cli\u003eKeep a spare JL3B350 on hand for planned maintenance to minimize downtime.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46424720998562,"sku":"JL3B350","price":310.0,"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-jl3b350-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}