{"product_id":"siemens-hjx3b350-350a-3p-600v-circuit-breaker","title":"Siemens HJX3B350 350A 3P 600V Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens HJX3B350 is a robust, 350 A, three-pole (3P) circuit breaker engineered for dependable protection in panelboards, load centers, and broader electrical distribution networks. With a 600 V rating, it’s built to handle demanding commercial and light industrial applications while maintaining a compact footprint in crowded electrical rooms.\u003c\/p\u003e \u003cp\u003eKey features that help you prevent downtime and keep systems running smoothly:\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e350 A rating, 3-pole design (3P) at 600 V\u003c\/strong\u003e to protect large circuits and feeders in distribution panels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number consistency\u003c\/strong\u003e supports retrofit work and maintenance planning where the HJX3B family is already in use, reducing misfits and unnecessary edits to panel schedules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSiemens engineering\u003c\/strong\u003e reliability ensures compatibility with Siemens panelboards and a wide range of distribution setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability from AmpState\u003c\/strong\u003e, with assistance to confirm fit and compatibility when you’re updating or stocking spares.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWho benefits most from the HJX3B350? Electrical maintenance teams, facilities managers, panel upgrade projects, and OEMs who need a dependable, stock-ready solution that preserves existing part numbers. It’s an ideal choice for retrofit scenarios where you must match an established cabinet or panelboard specification without re-engineering the electrical scheme.\u003c\/p\u003e \u003cp\u003eUse cases include replacing a failed breaker in Siemens-based panelboards, upgrading to a higher current capacity in a controlled upgrade path, or stocking a reliable spare for critical distribution circuits. The HJX3B350 is purpose-built for environments where consistent part numbers and rapid procurement matter to uptime.\u003c\/p\u003e \u003cp\u003eNeed help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46412775751842,"sku":"HJX3B350","price":100009.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-hjx3b350-350a-3p-600v-circuit-breaker-ampstate-breakers-254.webp?v=1789026416","url":"https:\/\/www.ampstate.com\/products\/siemens-hjx3b350-350a-3p-600v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}