{"product_id":"5sj4","title":"Siemens 5SJ4 - 8A, 1-Pole, Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens 5SJ4 8A 1-Pole Circuit Breaker—an exacting, compact overcurrent protector built for demanding environments. With an 8-amp rating and a single-pole design, this breaker delivers targeted protection for individual circuits while fitting neatly into panelboards, switchboards, and control panels. Engineered for industrial, commercial, and OEM applications, it supports safe operation and reliable performance in distribution panels and motor control centers.\u003c\/p\u003e \u003ch2\u003eWhy the Siemens 5SJ4 8A 1-Pole shines\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePrecise circuit protection:\u003c\/strong\u003e An 8 A rating provides reliable protection for smaller feeders and control circuits, reducing the risk of nuisance trips while safeguarding equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e1-Pole configuration for flexibility:\u003c\/strong\u003e The single-pole design simplifies layout in compact installations and enables versatile placement within modular panel architectures.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIndustrial-grade reliability:\u003c\/strong\u003e Built to withstand the rigors of busy environments, helping minimize downtime and extend panel life.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications:\u003c\/strong\u003e Ideal for panelboards, switchboards, and control panels across industrial, commercial, and OEM settings—especially where dependable overcurrent protection matters most.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 8 A\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePoles:\u003c\/strong\u003e 1-Pole\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBreaker type:\u003c\/strong\u003e Circuit Breaker\u003c\/p\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cp\u003eUse the 5SJ4 8A 1-Pole to guard branch circuits in manufacturing equipment, conveyors, compact drives, lighting panels, and small automation panels. Its compact, single-pole form makes it a practical choice for distribution panels and motor control centers where space efficiency and reliable protection are essential.\u003c\/p\u003e \u003ch2\u003ePractical guidance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003ePair with compatible Siemens enclosures and follow installation guidelines to ensure proper fit and signaling.\u003c\/li\u003e \u003cli\u003eWhen replacing, select the exact current rating (8 A) and maintain the 1-Pole configuration to preserve system protection and continuity.\u003c\/li\u003e \u003cli\u003eDocument the protection scheme in electrical drawings for straightforward maintenance and future upgrades.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default","offer_id":46390988767394,"sku":"5SJ4","price":54.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/circuit_breaker_generic_f7831dce-3e7c-4ce0-9470-ea2e5e18775b.png?v=1765381582","url":"https:\/\/www.ampstate.com\/products\/5sj4","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}