{"product_id":"siemens-bqd125-25a-277v-1-pole-bolt-on-circuit-breaker","title":"Siemens BQD125 - 25 A, 277 V, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens BQD125 is a purpose-built 1-pole bolt-on molded case circuit breaker engineered for dependable branch circuit protection in modern electrical setups. With a 25A rating at 277V, it’s designed to safeguard single‑phase distribution in panelboards and load centers where space and reliability matter.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e: engineered for a rigid, vibration‑resistant bus connection that stays tight through equipment start‑ups and routine operation, reducing the risk of loose contacts over time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal‑magnetic trip unit\u003c\/strong\u003e: combines a precise thermal element for overload protection with a fast magnetic trip for short‑circuit events, delivering stable, repeatable protection that trips exactly when needed.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e: engineered to be compatible with matching Siemens load centers and panelboards, ensuring a clean fit and reliable integration in your existing electrical infrastructure.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for multiple settings\u003c\/strong\u003e: ideal for residential, commercial, and light industrial applications where safety and reliability are paramount in 277V branch circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e1‑pole, 277V protection\u003c\/strong\u003e: designed for single‑pole operation on 277V systems, common in commercial lighting and certain auxiliary circuits, providing focused protection where you need it most.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhat this means for your electrical system: a compact, rugged breaker that installs quickly, maintains a solid bus connection, and delivers predictable protection against both overcurrent and short circuits. By choosing a bolt-on design that’s purpose-built for Siemens panelboards, you’re investing in a component that reduces downtime, simplifies maintenance, and supports long‑term circuit reliability.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or replacing a worn 1‑pole breaker in Siemens panelboards or load centers designed for bolt‑on devices\u003c\/li\u003e \u003cli\u003eProtecting 277V branch circuits in commercial lighting, small motors, or auxiliary equipment in office buildings and light industrial spaces\u003c\/li\u003e \u003cli\u003eRetrofit projects where a secure, vibration‑resistant connection is critical to sustained performance\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTechnical snapshot\u003c\/strong\u003e\u003c\/p\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 BQD125\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 25A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 277V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 1\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting style:\u003c\/strong\u003e Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Branch circuit overcurrent and short‑circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Siemens BQD125 when you need a reliable, purpose‑built solution for 277V single‑pole protection that integrates seamlessly with Siemens equipment. It’s a practical, long‑term choice for electricians and facilities teams aiming to maintain safe, compliant electrical distribution across commercial and light industrial environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349767573666,"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_8f806c58-f04c-463b-8088-60ceab2db552.png?v=1764156227","url":"https:\/\/www.ampstate.com\/products\/siemens-bqd125-25a-277v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}