{"product_id":"siemens-fj63b100","title":"Siemens FJ63B100 100A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens FJ63B100 is a robust three‑phase circuit breaker designed to protect demanding electrical installations. With a 100 A current rating, 3 poles, and a 600 V maximum rating, it provides reliable, supervised shut‑off for three‑phase feeders in commercial and industrial environments.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 100 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e FJ63B100\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this matters in real-world setups\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eThree‑pole design ensures synchronized disconnection across all three phases, improving system safety and reducing electrical stress on equipment.\u003c\/li\u003e \u003cli\u003e100 A protection is well suited for main feeders and essential branch circuits in moderate to large industrial panels, balancing protection with system efficiency.\u003c\/li\u003e \u003cli\u003eA 600 V rating accommodates common industrial and commercial distribution environments, providing ample headroom for voltage transients and motor loads.\u003c\/li\u003e \u003cli\u003eAs a Siemens component with a precise part number (FJ63B100), it integrates smoothly into Siemens‑specified panels and enclosures, supporting straightforward specification, ordering, and replacement.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal use scenarios\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eProtecting three‑phase feeders feeding motors, compressors, and other heavy loads in manufacturing, processing, and logistics facilities.\u003c\/li\u003e \u003cli\u003eServing as a reliable main or sub‑feed disconnect in commercial electrical rooms where stable, coordinated phase protection is essential.\u003c\/li\u003e \u003cli\u003eReplacement or upgrade within Siemens systems where a 3‑pole, 100 A, 600 V breaker matches the existing infrastructure and trip characteristics.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical notes for installation and maintenance\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eVerify that your panel accepts a 3‑pole breaker with a 600 V rating and that the physical dimensions align with your enclosure’s mounting provisions.\u003c\/li\u003e \u003cli\u003eUse only qualified electrical professionals for installation and ensure all safety protocols are followed during replacement or retrofits.\u003c\/li\u003e \u003cli\u003eKeep the part number handy (FJ63B100) to ensure compatibility with system schematics, spare parts inventory, and future servicing.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePDFs and manuals typically accompanying Siemens breakers will provide grounding, torque specifications, and any device‑specific installation notes. If your project requires dependable, trip‑responsive protection for three‑phase circuits, the Siemens FJ63B100 offers a precise, purpose‑built solution.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46423116513442,"sku":"FJ63B100","price":510.0,"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-fj63b100","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}