{"product_id":"siemens-bg3b020","title":"Siemens BG3B020 20A 3-Pole 240 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens BG3B020 circuit breaker is a purpose-built protection device for demanding three‑phase electrical systems. With a clear focus on reliability and safety, this 20A, 3‑pole, 240V breaker delivers consistent overcurrent protection across all phases, helping keep motors, conveyors, and other equipment safe from faults and short circuits. Part number BG3B020 makes it easy to identify, stock, and replace in compatible Siemens panels.\u003c\/p\u003e \u003ch2\u003eWhy the BG3B020 stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole design\u003c\/strong\u003e – disconnects all three phases simultaneously, ensuring a clean, complete shutdown of three‑phase equipment and reducing the risk of phase imbalance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e20A current rating\u003c\/strong\u003e – precisely suited for protecting moderate-load, three‑phase circuits without nuisance trips during normal startup surges.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e240V operation\u003c\/strong\u003e – ideal for standard 240V three‑phase distribution in commercial and industrial environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDirect identification\u003c\/strong\u003e – part number BG3B020 simplifies ordering, replacement, and maintenance in service logs and inventories.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eProtecting three-phase motors, fans, pumps, and conveyors in manufacturing or processing facilities.\u003c\/li\u003e \u003cli\u003eProtection in commercial electrical panels that feed 240V, three‑phase equipment.\u003c\/li\u003e \u003cli\u003eReplacement or upgrade part for existing Siemens BG3B020 installations, ensuring consistent performance with legacy systems.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhat this means in practice\u003c\/h2\u003e\n\u003cp\u003eWhen a fault occurs, the BG3B020 detects overcurrent on any phase and trips all three poles at once. This rapid, synchronized disconnection helps prevent equipment damage, reduces heat buildup in cables, and minimizes the risk of electrical fires. For facility managers and electricians, this translates to less unscheduled downtime and clearer maintenance records.\u003c\/p\u003e \u003ch2\u003eInstallation and compatibility considerations\u003c\/h2\u003e\n\u003cp\u003eUse the BG3B020 with compatible Siemens load centers and 240V three‑phase distribution panels. Before installation, verify that your panel labeling indicates support for 3‑pole, 240V breakers of this rating, and follow local electrical codes. When wiring, ensure secure connections to each pole and respect recommended torque guidelines for reliable performance and long service life. If you’re performing a replacement, confirm the exact part number and compatibility to maintain system integrity and warranty alignment.\u003c\/p\u003e \u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 20 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e BG3B020\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Circuit breaker for three‑phase applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46423132078242,"sku":"BG3B020","price":1006.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/siemens-bg3b020","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}