{"product_id":"siemens-hnxd63b120h-1200a-600v-3-pole-bolt-on-circuit-breaker","title":"Siemens HNXD63B120H - 1200 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Siemens HNXD63B120H — a heavy-duty, 1200A, 600V, 3-pole bolt-on molded case circuit breaker crafted to guard your electrical system against overloads and short circuits. Built for dependable branch circuit protection in panelboards and load centers, this unit is a purpose-built solution for demanding commercial and industrial environments, while still suitable for residential panel configurations where three-phase protection is required.\u003c\/p\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e: provides a rigid, vibration-resistant bus connection that stays put in busy electrical rooms, reducing movement and potential arcing over time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e: delivers stable, repeatable protection by combining thermal overload sensing with magnetic short-circuit protection, helping prevent nuisance trips and ensuring quick response to faults.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e: engineered to drop directly into Siemens panelboards and load centers, ensuring reliable fit, electrical contact, and streamlined replacement in existing systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-capacity protection\u003c\/strong\u003e: 1200A, 600V rating makes it ideal for large branch circuits and high-demand feeders in commercial or light-industrial installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole configuration\u003c\/strong\u003e: suited for three-phase systems, enabling comprehensive protection across all phases in modern electrical distributions.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003ePart Number: HNXD63B120H\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 1200A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 600V\u003c\/li\u003e \u003cli\u003eNumber of Poles: 3\u003c\/li\u003e \u003cli\u003eMounting Style: Bolt-on\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases and practical notes\u003c\/h3\u003e\n\u003cp\u003eChoose the HNXD63B120H when you need reliable three-phase protection for high-capacity panelboards or load centers in commercial spaces, warehouses, data\/display rooms, or light industrial facilities. Its bolt-on mount provides lasting mechanical stability in environments with vibration or heavy equipment, while the thermal-magnetic trip unit ensures predictable protective behavior as loads fluctuate throughout the day. For installers, it’s a straightforward replacement in compatible Siemens systems; just follow panelboard guidelines for wiring and any specific torque recommendations from the manufacturer to maximize longevity and performance.\u003c\/p\u003e \u003cp\u003eWith the Siemens HNXD63B120H, you get a robust, purpose-built solution that aligns with Siemens engineering standards, delivering confident protection for critical electrical infrastructure and peace of mind for facility operators.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349812891810,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens_breaker_and_panel_1f726ef0-ccfe-48a9-9b16-e9101484f22f.png?v=1764157542","url":"https:\/\/www.ampstate.com\/products\/siemens-hnxd63b120h-1200a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}