{"product_id":"5sn3g40a","title":"Siemens 5SN3G40A - 40A, 380VAC \/ 415VAC, Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSiemens 5SN3G40A\u003c\/strong\u003e is a robust 40A circuit breaker built for demanding industrial power systems. Rated for up to 380V and 415V, it delivers dependable overcurrent protection where it matters most—in distribution panels, switchboards, control panels, and OEM equipment. When reliability and safe operation are non-negotiable, this Siemens breaker is designed to perform load-after-load in challenging environments.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e40A current rating\u003c\/strong\u003e provides precise protection for medium-to-high demand circuits, helping prevent damage from overloads without unnecessary interruptions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage tolerance of 380VAC \/ 415VAC\u003c\/strong\u003e makes it compatible with common three-phase industrial networks, easing integration into existing systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile installation\u003c\/strong\u003e suitable for panelboards, switchboards, control panels, and OEM equipment, supporting a wide range of industrial and commercial applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReliable overcurrent protection\u003c\/strong\u003e safeguards critical equipment and wiring in distribution panels and motor control centers, reducing downtime and repair costs.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSiemens engineering and durability\u003c\/strong\u003e backed by a long-standing track record in electrical protection, delivering consistent performance in demanding environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIdeal for industrial, commercial, and OEM applications\u003c\/strong\u003e where robust protection and safe operation are essential for uptime and equipment longevity.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eProtect feeder circuits in switchboards powering conveyors, pumps, and automated processes within factory floors.\u003c\/li\u003e \u003cli\u003eSafeguard critical sections of motor control centers, preventing damage from short circuits or overloads while keeping production moving.\u003c\/li\u003e \u003cli\u003eIntegrate into OEM equipment builds that require reliable, up-to-spec overcurrent protection for 380–415V systems.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy choose the Siemens 5SN3G40A\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePurpose-built for panels and assemblies where uninterrupted protection and quick, predictable tripping are essential.\u003c\/li\u003e \u003cli\u003eClear alignment with 380–415V industrial power distributions, simplifying design and maintenance planning.\u003c\/li\u003e \u003cli\u003ePart of a trusted Siemens protection lineup, offering consistent performance across a range of industrial applications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhether you’re upgrading an existing distribution network or designing a new control architecture, the Siemens 5SN3G40A delivers focused protection that keeps systems running smoothly. Its combination of a solid 40A rating and 380\/415V compatibility makes it a reliable choice for mid-range loads in demanding environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default","offer_id":46390904684706,"sku":"5SN3G40A","price":125.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/circuit_breaker_generic_a354fe1e-0037-4693-b001-349516822b98.png?v=1765380681","url":"https:\/\/www.ampstate.com\/products\/5sn3g40a","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}