{"product_id":"siemens-cfd63b150l-150a-600v-3-pole-bolt-on-circuit-breaker","title":"Siemens CFD63B150L - 150 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens CFD63B150L is a dependable 150A, 600V three-pole bolt-on molded case circuit breaker engineered to protect your panelboards and load centers from overcurrents and short circuits. Built for reliability in residential, commercial, and light industrial environments, it delivers precise protection where it matters most.\u003c\/p\u003e \u003ch2\u003eWhat sets this breaker apart\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e yields a rigid, vibration-resistant connection to the bus, reducing the risk of loose contacts and unpredictable trips.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection by responding to both sustained overloads and instantaneous short circuits, helping to minimize nuisance trips.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e is tuned to integrate seamlessly with Siemens loadcenters and panelboards, ensuring cohesive system protection and easier serviceability.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e ideal for residential panels, commercial distribution, and light industrial installations where reliable branch-circuit protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this matters in real-world use\u003c\/h3\u003e\n\u003cp\u003eIn busy electrical spaces, vibration, surges, and evolving load profiles can challenge panel reliability. The CFD63B150L’s bolt-on mount maintains a solid bus connection, while the thermal-magnetic trip unit delivers consistent performance across temperature swings and load changes. The result is fewer unexpected trips, smoother maintenance, and lasting protection for wiring and downstream equipment.\u003c\/p\u003e \u003ch3\u003ePractical use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or replacing a 150A branch circuit in residential subpanels for improved capacity and protection.\u003c\/li\u003e \u003cli\u003eInstalling in new construction projects requiring a robust, OEM-compatible 3-pole breaker for three-phase or multi-wire systems.\u003c\/li\u003e \u003cli\u003eRenewing protection in light commercial panels where reliability and compatibility with existing Siemens hardware are priorities.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAmperage rating: 150A\u003c\/li\u003e \u003cli\u003eVoltage rating: 600V\u003c\/li\u003e \u003cli\u003ePoles: 3\u003c\/li\u003e \u003cli\u003eMounting style: Bolt-on\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003ePart Number: CFD63B150L\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Siemens CFD63B150L for a purpose-built, durable solution that aligns with your panelboard architecture and delivers predictable, long-term protection. It’s a thoughtful investment for electricians, facility managers, and homeowners who demand clarity, reliability, and straightforward compatibility in their electrical protection strategy.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349778747554,"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_d30dfc5c-594b-47c6-95bb-ca9b5ad32aca.png?v=1764156442","url":"https:\/\/www.ampstate.com\/products\/siemens-cfd63b150l-150a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}