{"product_id":"siemens-q145-45a-120v-1-pole-plug-in-circuit-breaker","title":"Siemens Q145 - 45 A, 120 V, 1-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens Q145 45A, 120V, 1-Pole Plug-In Molded Case Circuit Breaker — a dependable choice from AmpState for fast, reliable branch-circuit protection in panelboards and load centers. Designed to simplify installation while delivering precise protection, this breaker guards your electrical system against overloads and short circuits, keeping residential, commercial, and light industrial applications running smoothly.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e for quick installation and straightforward replacement, reducing downtime when servicing panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection performance across varying loads and temperatures, helping prevent nuisance trips and ensuring consistent breaker behavior.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e1-pole, 45A at 120V\u003c\/strong\u003e configuration provides targeted protection for individual branch circuits within standard U.S. electrical systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatible with matching OEM load centers and panelboards\u003c\/strong\u003e to maintain proper fit, electrical characteristics, and protection coordination.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePlug-in molded case design\u003c\/strong\u003e combines compact form with rugged reliability for long-term service in demanding panel environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis Siemens Q145 is ideal for professionals and informed DIYers who need a trustworthy, source-compatible solution for protecting branch circuits in\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eResidential service panels and feeders needing robust 120V protection\u003c\/li\u003e \u003cli\u003eCommercial panels and light industrial applications where quick replacement matters\u003c\/li\u003e \u003cli\u003eUpgrades or replacements in Siemens or OEM panels that accept plug-in molded case breakers\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this Q145 stands out\u003c\/strong\u003e in its class is the combination of fast installation, predictable thermal-magnetic protection, and panel compatibility that minimizes installation surprises. The breaker's trip characteristics respond quickly to short circuits while avoiding unnecessary interruptions during normal operation, helping maintain steady power delivery and ease of panel maintenance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eTechnical specifications at a glance\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 Q145\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 45A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 120V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 1\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting Style:\u003c\/strong\u003e Plug-in\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 \u003cp\u003eFor best results, pair the Q145 with the appropriate Siemens load centers or panelboards designed to accept plug-in breakers. When performing panel work, ensure the power is de-energized and follow standard safety practices. With its focused amperage, straightforward installation, and reliable protection, the Siemens Q145 is a practical, durable choice for safeguarding critical circuits in a wide range of installations.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355153846434,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-q145-45-a-120-v-1-pole-plug-in-circuit-breaker-ampstate-809.webp?v=1788735555","url":"https:\/\/www.ampstate.com\/products\/siemens-q145-45a-120v-1-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}