{"product_id":"siemens-bqd240-40a-480v-2-pole-bolt-on-circuit-breaker","title":"Siemens BQD240 - 40 A, 480 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens BQD240 — a 40 A, 480 V, 2-pole bolt-on molded case circuit breaker engineered for dependable branch circuit protection in panelboards and load centers. Our bolt-on design cinches a secure, vibration-resistant bus connection, so you get consistent performance even in environments with vibration or movement. The thermal-magnetic trip unit delivers stable, repeatable protection across a range of loads and fault conditions, helping prevent nuisance trips while reliably interrupting fault currents when needed.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-on mounting\u003c\/strong\u003e ensures a rigid, vibration-resistant connection to the bus, reducing the chance of loose contacts and overheating over time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides dependable overcurrent and short-circuit protection with predictable trip characteristics, maintaining system safety under varying conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e Designed to be compatible with matching Siemens load centers and panelboards for easy replacement and uniform performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e Suitable for residential, commercial, and light industrial installations requiring reliable 2-pole protection at 480 V.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDirect-fit protection\u003c\/strong\u003e Ideal for protecting branch circuits where space and mounting integrity matter, with straightforward installation into existing Siemens equipment.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThe Siemens BQD240 is purpose-built for installations where durable, consistent protection matters most. Whether you’re expanding a panel in a small commercial space or upgrading a load center in a light industrial setting, this 2-pole breaker delivers the trusted performance synonymous with the Siemens name. Its bolt-on format simplifies service and future upgrades, helping technicians work quickly without compromising safety.\u003c\/p\u003e \u003ch3\u003eTechnical details at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrongmanufacturer:\u003e Siemens\u003c\/strongmanufacturer:\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e BQD240\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 40 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 480 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 2\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\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349768622242,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-bqd240-40-a-480-v-2-pole-bolt-on-circuit-breaker-ampstate-942.webp?v=1788722621","url":"https:\/\/www.ampstate.com\/products\/siemens-bqd240-40a-480v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}