{"product_id":"siemens-cpd63b120-1200a-600v-3-pole-bolt-on-circuit-breaker","title":"Siemens CPD63B120 - 1200 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens CPD63B120 is a robust 3-pole bolt-on molded case circuit breaker designed to protect panelboards and load centers from dangerous overcurrents and short circuits. With a demanding 1200A rating at 600V, this breaker is built to handle substantial loads in commercial and light industrial settings, while still being suitable for select residential applications that require three-phase protection.\u003c\/p\u003e \u003ch3\u003eKey advantages that matter in real-world panels\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection, enhancing long-term reliability in environments subject to movement or vibration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection performance, reducing nuisance trips and preserving critical circuits during overloads or faults.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e designed to work seamlessly with matching Siemens load centers and panelboards for straightforward installation and reliable coordination within existing electrical systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable molded-case construction\u003c\/strong\u003e combines solid protection with a compact form factor suitable for panelboard architectures where space and reliability matter.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole design\u003c\/strong\u003e enables effective protection across all three phases, essential for balanced three-phase distribution networks.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases and practical applications\u003c\/h3\u003e\n\u003cp\u003eUse the CPD63B120 where you need dependable branch-circuit protection for substantial loads and multi-phase setups. It’s a strong fit for commercial spaces, light industrial equipment feed, and any installation that benefits from a high-current, three-pole protector integrated into Siemens OEM panels. In residential settings where three-phase protection is required or desired for future expansion, this breaker provides a scalable solution without compromising safety or performance.\u003c\/p\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e CPD63B120\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 1200A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting Style:\u003c\/strong\u003e Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and best practices\u003c\/h3\u003e\n\u003cp\u003eFor optimal performance, install the CPD63B120 in a compatible Siemens panelboard or load center using proper bolt-on hardware. Ensure secure torque on mounting fasteners to maintain the vibration-resistant connection, and coordinate protection with the rest of the distribution system to avoid nuisance trips and ensure selective tripping during faults.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349781729442,"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_a1b6c44a-0070-4770-a690-915cc07437d7.png?v=1764156503","url":"https:\/\/www.ampstate.com\/products\/siemens-cpd63b120-1200a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}