{"product_id":"siemens-b320-20a-3p-240v-circuit-breaker","title":"Siemens B320 20A 3P 240V Circuit Breaker, Bolt-On | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens B320 20A 3P 240V Bolt-On Circuit Breaker is built for dependable, everyday electrical protection in panelboards, load centers, and centralized distribution systems. Designed for professionals who value precise part matching, this breaker delivers a secure, reliable solution where a direct part-number match matters most.\u003c\/p\u003e \u003ch2\u003eWhy the Siemens B320 stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-On mounting\u003c\/strong\u003e provides a robust, vibration-resistant connection ideal for traditional Siemens panelboards and distribution setups, reducing the risk of loose connections during service operations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole design\u003c\/strong\u003e protects three-phase circuits, making it a smart choice for commercial and industrial power distribution and motor-driven loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e20 amp per pole\u003c\/strong\u003e with a \u003cstrong\u003e240V\u003c\/strong\u003e rating supports common three-phase equipment and branch circuits without oversizing or underserving protections.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDirect part-number match\u003c\/strong\u003e ensures seamless compatibility with Siemens panelboards and load centers, simplifying inventory management and service replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile coverage\u003c\/strong\u003e is suitable for panelboards, load centers, and electrical distribution setups, making it a dependable choice for maintenance teams, panel builders, and spare inventories.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAvailability through AmpState\u003c\/strong\u003e offers a reliable source for sourcing the B320 when exact fit is required, helping you minimize downtime and ensure fast replacements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal for maintenance technicians, electrical contractors, and building operations teams, the B320 delivers predictable protection where three-phase power is a staple. Its bolt-on design, combined with Siemens engineering, translates to quicker installations, fewer compatibility headaches, and a safer, more secure electrical distribution network.\u003c\/p\u003e \u003cp\u003eUsage scenarios include retrofit projects in commercial facilities, new panel builds in light-industrial settings, and service upgrades where a precise Siemens part-number match accelerates procurement. If you’re evaluating options, consider how a bolt-on 3P 240V solution like the B320 can streamline spare-part inventories and shorten downtime during routine maintenance or fault isolation.\u003c\/p\u003e \u003cp\u003eTo confirm fit, reference your panel model’s acceptance of bolt-on breakers and verify that a B320 20A 3P 240V configuration aligns with your distribution needs. If you need help verifying compatibility, AmpState is ready to assist in confirming the correct fit for your specific panel and project requirements.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46410841915554,"sku":"B320","price":290.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_83963f7f-600e-419f-90c6-e7677089642b.png?v=1765492973","url":"https:\/\/www.ampstate.com\/products\/siemens-b320-20a-3p-240v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}