{"product_id":"siemens-cld63b500-500a-600v-3-pole-bolt-on-circuit-breaker","title":"Siemens CLD63B500 - 500 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens CLD63B500, a rugged 3-pole bolt-on molded case circuit breaker engineered to deliver reliable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Rated at 500 A and 600 V, this unit is designed to handle demanding electrical environments while preserving system stability and safety. Available from AmpState, it’s a trustworthy upgrade or replacement for Siemens OEM panels that require a solid, compatible solution.\u003c\/p\u003e \u003ch3\u003eWhy the CLD63B500 stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eSecure bolt-on mounting\u003c\/b\u003e for a rigid, vibration-resistant bus connection that stays tight through equipment movement, reducing the risk of loose connections and intermittent trips.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eThermal-magnetic trip unit\u003c\/b\u003e delivers stable, repeatable protection by combining a heat-based overload element with a magnetic short-circuit trigger, enabling fast, reliable clearance when faults occur.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eOEM-compatible design\u003c\/b\u003e engineered to match Siemens load centers and panelboards, simplifying installation, replacement, and long-term maintenance without compatibility surprises.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eThree-pole configuration\u003c\/b\u003e, ideal for three-phase systems and higher-demand circuits common in commercial and light industrial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePurpose-built for protection\u003c\/b\u003e specifically aimed at safeguarding branch circuits from overcurrent and short circuits, helping to prevent damage to wiring and equipment.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eNew installations in panelboards and loadcenters that require robust 3-pole protection for large loads or three-phase equipment.\u003c\/li\u003e \u003cli\u003eRepairs or replacements in residential, commercial, and light industrial environments where Siemens-compatible protection is essential.\u003c\/li\u003e \u003cli\u003eUpgrading aging protection to a high-capacity breaker that maintains reliable trip performance under varying load conditions.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat makes this breaker practical for your project\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eStreamlined compatibility with Siemens OEM components minimizes integration hassles and helps maintain overall panel performance.\u003c\/li\u003e \u003cli\u003eThe bolt-on mounting method provides a durable, vibration-resistant connection—crucial in mechanical rooms, HVAC closets, and equipment rooms where movement occurs.\u003c\/li\u003e \u003cli\u003eThe combination of thermal and magnetic trip mechanisms reduces nuisance trips while delivering prompt response to short circuits, protecting both conductors and connected equipment.\u003c\/li\u003e \u003cli\u003eDesigned to support clear, straightforward replacement in existing installations, helping you complete projects faster with fewer compatibility concerns.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eManufacturer:\u003c\/b\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePart Number:\u003c\/b\u003e CLD63B500\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eType:\u003c\/b\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eAmperage rating:\u003c\/b\u003e 500 A\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eVoltage rating:\u003c\/b\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eNumber of poles:\u003c\/b\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMounting style:\u003c\/b\u003e Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eApplication:\u003c\/b\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIn practical terms, the Siemens CLD63B500 is the reliable backbone for protecting large feeders and critical circuits in multi‑space panelboards. Its sturdy bolt-on design means fewer loosened connections over time, while the thermal-magnetic trip unit responds appropriately to both overloads and faults, helping you maintain continuous operation with confidence. Choose this breaker when you need a compatible, high-capacity solution that aligns with Siemens panel ecosystems and delivers predictable protection in demanding residential, commercial, and light industrial applications.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349780287650,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-cld63b500-500-a-600-v-3-pole-bolt-on-circuit-breaker-151.webp?v=1788723860","url":"https:\/\/www.ampstate.com\/products\/siemens-cld63b500-500a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}