{"product_id":"siemens-nnx3b120-circuit-breaker","title":"Siemens | NNX3B120 | Circuit Breaker | 1200A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSiemens NNX3B120 Circuit Breaker\u003c\/strong\u003e is a bolt-on, three-pole protection solution built for demanding industrial panels. With a 1200A rating and a 600V operating range, this breaker is designed to safeguard large feeders and motor circuits in rugged environments, making it ideal for retrofit, maintenance, and replacement projects where exact specifications matter.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 1200A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReference:\u003c\/strong\u003e Part number NNX3B120 ensures compatibility and accurate replacement\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis breaker is purpose-built for scenarios where you need dependable, field-ready protection that matches existing equipment. The bolt-on design provides solid mechanical engagement, making installation straightforward in compatible Siemens panels or systems that accept the NNX3B120 form factor.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWho is this for?\u003c\/strong\u003e Engineers and technicians overseeing industrial power distribution, equipment retrofits, or panel upgrades that require a 3-pole, 1200A, 600V bolt-on solution. It’s particularly suited for large-diameter feeders, service entrances, and machinery controls in manufacturing, processing facilities, and data center infrastructure where reliable, scalable protection is a priority.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePractical considerations and tips:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAlways \u003cstrong\u003econfirm fit and ratings before ordering\u003c\/strong\u003e to ensure the NNX3B120 matches your panel’s mounting footprint and electrical requirements.\u003c\/li\u003e \u003cli\u003eSince this is a bolt-on design, verify that the mounting hardware and panel cutouts comply with your installation standards to ensure secure, code-compliant mounting.\u003c\/li\u003e \u003cli\u003eDocument the \u003cstrong\u003epart number\u003c\/strong\u003e (NNX3B120) during procurement and installation to simplify future maintenance or replacements.\u003c\/li\u003e \u003cli\u003eUse this breaker to consolidate protection for large-capacity feeders, reducing interruptions and improving system reliability in industrial environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith Siemens reliability and a specification-driven fit, the NNX3B120 delivers concrete value for high-demand electrical systems. It’s not just a component—it’s a precise, upgrade-ready solution for reliable, long-term protection.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46424805179554,"sku":"NNX3B120","price":21317.0,"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-nnx3b120-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}