{"product_id":"siemens-ngb3b020b-20a-3p-600v-circuit-breaker","title":"Siemens NGB3B020B 20A 3P 600V Circuit Breaker, Bolt-On | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens NGB3B020B — a bolt-on, 3-pole circuit breaker designed to deliver reliable overcurrent protection in panelboards, load centers, and electrical distribution systems. With a 20 A rating and a 600 V maximum, this OEM-grade unit is built for three-phase applications where dependable performance matters.\u003c\/p\u003e \u003cp\u003eWhy this matters for your projects: it’s the exact part you need to keep your BOM aligned to the original Siemens specification. The NGB3B020B is ideal for replacement work and stocking spares, ensuring quick, hassle-free field service without compatibility guesswork.\u003c\/p\u003e \u003ch3\u003eKey specifications and why they matter\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 20 A – precise protection for your branch circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3 – supports three-phase electrical systems common in commercial and industrial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V – suitable for distributed power environments and equipment within standard electrical codes.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On – enables fast, sturdy installation in compatible Siemens panelboards and load centers.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e NGB3B020B – exact OEM specification to preserve system integrity and BOM accuracy.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacement projects where the original part number must be preserved to maintain panel labeling and documentation.\u003c\/li\u003e \u003cli\u003eSpare stocking for service fleets, reducing downtime when a fault occurs in a Siemens panel system.\u003c\/li\u003e \u003cli\u003eNew builds and upgrades that rely on Siemens NGB-series protection for consistent performance across installations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and compatibility guidance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify that your panelboard or load center accepts bolt-on, 3-pole Siemens breakers in the NGB family and that the bus and mounting pattern match.\u003c\/li\u003e \u003cli\u003eEnsure the installation environment is de-energized and follow all safety protocols before mounting.\u003c\/li\u003e \u003cli\u003eAlign the breaker with the mounting holes, secure the bolts, and confirm a firm, vibration-free connection for reliable operation.\u003c\/li\u003e \u003cli\u003eUse this part as a precise replacement to maintain BOM alignment and original-system behavior.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eNeed help confirming fit or matching a part number? AmpState specialists are ready to assist—message us and we’ll verify compatibility and BOM alignment for your specific panel or distribution setup.\u003c\/p\u003e \u003cp\u003eAvailable now from AmpState, the Siemens NGB3B020B 20A 3P 600V circuit breaker delivers OEM-grade protection, fast installation, and peace of mind for ongoing electrical distribution reliability.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46410885988514,"sku":"NGB3B020B","price":1379.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-ngb3b020b-20a-3p-600v-circuit-breaker-bolt-on-ampstate-515.webp?v=1788984934","url":"https:\/\/www.ampstate.com\/products\/siemens-ngb3b020b-20a-3p-600v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}