{"product_id":"siemens-kpb3b120","title":"Siemens KPB3B120 1200A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens KPB3B120 1200A 3-Pole 600 V Circuit Breaker—a rugged, high-capacity solution designed to protect large, demanding electrical systems. Built to reliably interrupt faults and protect valuable equipment, this unit is tailored for heavy-duty distribution where safety and uptime matter.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 1200 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 KPB3B120\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this matters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eThree-pole design ensures simultaneous disconnection across all phases, maintaining proper phase balance and reducing the risk of damage from arc flash or uneven loading.\u003c\/li\u003e \u003cli\u003eDesigned for industrial environments where large feeders and big panels require dependable overcurrent protection with a compact, field-replaceable form factor.\u003c\/li\u003e \u003cli\u003eLeverages Siemens engineering to support compatibility with standard distribution panels and protection schemes, helping streamline maintenance and replacements in complex electrical rooms.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eLarge 3-phase power distribution panels and main feeders in manufacturing facilities, data centers, and industrial plants.\u003c\/li\u003e \u003cli\u003eHVAC and large-motor circuits where a single device can safely interrupt high-current faults.\u003c\/li\u003e \u003cli\u003eFacilities where uptime is critical and rapid, reliable fault isolation is essential for protecting downstream equipment.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePractical considerations and tips\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eConfirm compatibility with your existing 3-phase, 600 V distribution system and mounting footprint before replacement.\u003c\/li\u003e \u003cli\u003ePlan for secure, torque-compliant terminations to maintain reliable performance under high-current conditions.\u003c\/li\u003e \u003cli\u003eKeep spares on hand for quick field replacement to minimize downtime during maintenance windows.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThe Siemens KPB3B120 delivers robust protection for demanding electrical environments, pairing a substantial 1200 A capacity with a proven 3-pole design and a 600 V rating. When you need dependable isolation of faults across all phases without compromising system reliability, this circuit breaker stands as a concrete, field-ready choice—backed by Siemens engineering and the KPB family’s trusted performance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46423266328738,"sku":"KPB3B120","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-kpb3b120","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}