{"product_id":"siemens-5sy4111-7-5a-1p-400v-circuit-breaker","title":"Siemens 5SY4111-7 Circuit Breaker, 5A, 1-Pole, 400V","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens 5SY4111-7 circuit breaker is a purpose-built protection device for industrial electrical service, maintenance, and replacement projects. Engineered by Siemens, this 1-pole unit delivers reliable, precise protection for smaller circuits within 400V systems, helping keep equipment and operators safe while minimizing downtime.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e5A current rating\u003c\/strong\u003e—targeted protection for small feeders, control circuits, and auxiliary lines in industrial panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e1‑pole design\u003c\/strong\u003e—compact, straightforward installation that fits tight spaces and simplifies retrofits or replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e400V compatibility\u003c\/strong\u003e—suitable for typical industrial three-phase environments where line-to-line voltages reach up to 400V.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSiemens reliability\u003c\/strong\u003e—backed by Siemens’ engineering standards, providing consistent performance in demanding industrial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart-numbered fit\u003c\/strong\u003e—use the exact part number 5SY4111-7 to confirm compatibility with your existing panel and application requirements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eCompatibility is key in industrial installations. Verify fit by the part number and application needs to ensure seamless replacement or upgrade. If you’re unsure about compatibility, send us a message and we’ll help confirm that 5SY4111-7 matches your equipment and protection goals.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eReplacing worn or failed breakers in existing industrial control panels\u003c\/li\u003e \u003cli\u003eProtecting small feeders and control circuits within 400V electrical systems\u003c\/li\u003e \u003cli\u003eUpgrading legacy panels where a precise 5A, single-pole protection device is required\u003c\/li\u003e \u003cli\u003eMaintenance projects that demand quick, reliable part matching with Siemens components\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eSpec highlights:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003ePart Number: 5SY4111-7\u003c\/li\u003e \u003cli\u003eProduct Type: Circuit Breaker\u003c\/li\u003e \u003cli\u003eAmperage: 5 A\u003c\/li\u003e \u003cli\u003ePoles: 1\u003c\/li\u003e \u003cli\u003eVoltage: 400V\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhen you’re planning an install or replacement, choosing the correct part number is crucial for performance and safety. The 5SY4111-7 is designed to integrate smoothly into industrial panels and systems that rely on dependable overcurrent protection. Reach out with the part number to confirm fit, or drop us a message for personalized compatibility guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46416141025442,"sku":"5SY4111-7","price":156.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/siemens-5sy4111-7-5a-1p-400v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}