{"product_id":"eaton-ch140-40a-120v-1-pole-plug-in-circuit-breaker","title":"Eaton CH140 - 40 A, 120 V, 1-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eEaton CH140\u003c\/strong\u003e - \u003cstrong\u003e40A\u003c\/strong\u003e, \u003cstrong\u003e120V\u003c\/strong\u003e, \u003cstrong\u003e1-pole\u003c\/strong\u003e plug-in molded case circuit breaker. Engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters, this unit is built to install quickly and perform reliably under demanding operating conditions.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhy this breaker stands out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e for rapid installation and effortless replacement, minimizing downtime during panel servicing or upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection by combining thermal overload sensing with magnetic short-circuit interruption for immediate response to high-current faults.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e ensures seamless compatibility with matching Eaton OEM loadcenters and panelboards, reducing compatibility concerns during retrofits or new installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for multiple settings\u003c\/strong\u003e suitable for \u003cem\u003eresidential, commercial, and light industrial\u003c\/em\u003e applications where reliable protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Eaton\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e CH140\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 40A\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 \u003ch3\u003ePractical use cases and scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpdating or expanding residential service panels where a 40A, 120V single-pole breaker is needed for dedicated circuits like HVAC controls, water heaters, or sub-panel feeders.\u003c\/li\u003e \u003cli\u003eEmergency replacements in panelboards and loadcenters that require a plug-in solution with quick, secure seating on the bus bar.\u003c\/li\u003e \u003cli\u003eCommercial or light industrial panel upgrades where fast installation and OEM compatibility save time during compliance and safety inspections.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow this compares to alternatives\u003c\/h3\u003e\n\u003cp\u003eChoosing a plug-in, thermal-magnetic molded case breaker from Eaton reduces installation complexity compared with bolt-on designs, while maintaining robust protection against both overloads and short circuits. Its plug-in approach eliminates model-number guessing during replacements and aligns with OEM panels for a clean, reliable fit. For projects that demand straightforward serviceability and durable performance in 120V branch circuits, the CH140 offers a concrete, purpose-built solution.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eInvestment in reliability\u003c\/strong\u003e means fewer nuisance trips, quicker maintenance, and safer electrical distribution across your panelboard ecosystem. The Eaton CH140 40A, 120V, 1-pole plug-in breaker is designed to perform in real-world environments—from home garages to light commercial spaces—where consistent protection and fast serviceability matter most.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349510967458,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton_breaker_and_panels_4b28a632-d692-47a1-8b94-b337cc14424e.png?v=1764148581","url":"https:\/\/www.ampstate.com\/products\/eaton-ch140-40a-120v-1-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}