{"product_id":"square-d-ejb14040-bolt-on-molded-case-circuit-breaker-1-pole-40a-277vac-thermal-magnetic","title":"Square D EJB14040 Bolt-On Molded Case Circuit Breaker – 1 Pole – 40A – 277VAC – Thermal Magnetic","description":"\u003cp data-start=\"149\" data-end=\"591\"\u003eThe \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eSquare D\u003c\/span\u003e\u003c\/span\u003e EJB14040 is a high-interrupting capacity molded case circuit breaker engineered for commercial, industrial, and OEM power distribution applications. Manufactured by \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eSchneider Electric\u003c\/span\u003e\u003c\/span\u003e, this 1-pole, 40A breaker provides dependable thermal-magnetic protection against overloads and short-circuit faults while maintaining compatibility with Square D NF panelboards.\u003c\/p\u003e\n\u003cp data-start=\"593\" data-end=\"944\"\u003eAs part of the EJB Series E-Frame family, the EJB14040 utilizes a secure bolt-on mounting configuration and features a thermal-magnetic trip unit with long-time and instantaneous protection functions. Its high fault-current interruption capability makes it suitable for demanding electrical systems where elevated available fault currents are present.\u003c\/p\u003e\n\u003cp data-start=\"946\" data-end=\"1266\"\u003eThe breaker incorporates a visual trip indicator for quick fault identification and is calibrated for operation in 40°C ambient conditions. Designed specifically for NF panelboard installations, it is both HID-rated and HACR-rated, making it suitable for lighting, HVAC, and general electrical distribution applications.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1yl5694\" data-start=\"1268\" data-end=\"1286\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul data-start=\"1288\" data-end=\"1795\"\u003e\n\u003cli data-section-id=\"lbkw4z\" data-start=\"1288\" data-end=\"1336\"\u003eBrand: \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eSquare D\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1puzkdb\" data-start=\"1337\" data-end=\"1392\"\u003eManufacturer: \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eSchneider Electric\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"gkv1dp\" data-start=\"1393\" data-end=\"1418\"\u003ePart Number: EJB14040\u003c\/li\u003e\n\u003cli data-section-id=\"1omem54\" data-start=\"1419\" data-end=\"1441\"\u003eSeries: EJB Series\u003c\/li\u003e\n\u003cli data-section-id=\"19em5gp\" data-start=\"1442\" data-end=\"1479\"\u003eType: Molded Case Circuit Breaker\u003c\/li\u003e\n\u003cli data-section-id=\"bpyoo5\" data-start=\"1480\" data-end=\"1503\"\u003eFrame Type: E-Frame\u003c\/li\u003e\n\u003cli data-section-id=\"1re6uma\" data-start=\"1504\" data-end=\"1529\"\u003eConfiguration: 1 Pole\u003c\/li\u003e\n\u003cli data-section-id=\"vdhrok\" data-start=\"1530\" data-end=\"1548\"\u003ePhase: 1 Phase\u003c\/li\u003e\n\u003cli data-section-id=\"7wa872\" data-start=\"1549\" data-end=\"1572\"\u003eCurrent Rating: 40A\u003c\/li\u003e\n\u003cli data-section-id=\"165llme\" data-start=\"1573\" data-end=\"1599\"\u003eVoltage Rating: 277VAC\u003c\/li\u003e\n\u003cli data-section-id=\"1ibps6a\" data-start=\"1600\" data-end=\"1628\"\u003eConnection Type: Bolt-On\u003c\/li\u003e\n\u003cli data-section-id=\"sybr12\" data-start=\"1629\" data-end=\"1656\"\u003eMounting Style: Bolt-On\u003c\/li\u003e\n\u003cli data-section-id=\"1vwficb\" data-start=\"1657\" data-end=\"1694\"\u003eProtection Type: Thermal Magnetic\u003c\/li\u003e\n\u003cli data-section-id=\"1i6wvgf\" data-start=\"1695\" data-end=\"1746\"\u003eTrip Function: LI – Long-Time and Instantaneous\u003c\/li\u003e\n\u003cli data-section-id=\"1sdooog\" data-start=\"1747\" data-end=\"1795\"\u003eProduct Destination: Square D NF Panelboards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1oyz3ud\" data-start=\"1797\" data-end=\"1821\"\u003eInterrupting Ratings\u003c\/h3\u003e\n\u003cul data-start=\"1823\" data-end=\"1877\"\u003e\n\u003cli data-section-id=\"qhbcdc\" data-start=\"1823\" data-end=\"1840\"\u003e65kA @ 277VAC\u003c\/li\u003e\n\u003cli data-section-id=\"r1iv8\" data-start=\"1841\" data-end=\"1858\"\u003e65kA @ 240VAC\u003c\/li\u003e\n\u003cli data-section-id=\"7zbcvn\" data-start=\"1859\" data-end=\"1877\"\u003e100kA @ 120VAC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"bpec4l\" data-start=\"1879\" data-end=\"1893\"\u003eDimensions\u003c\/h3\u003e\n\u003cul data-start=\"1895\" data-end=\"1970\"\u003e\n\u003cli data-section-id=\"8klmmu\" data-start=\"1895\" data-end=\"1914\"\u003eHeight: 5.66 in\u003c\/li\u003e\n\u003cli data-section-id=\"1umlbzf\" data-start=\"1915\" data-end=\"1933\"\u003eWidth: 0.98 in\u003c\/li\u003e\n\u003cli data-section-id=\"rqffds\" data-start=\"1934\" data-end=\"1952\"\u003eDepth: 4.05 in\u003c\/li\u003e\n\u003cli data-section-id=\"1c3k2wq\" data-start=\"1953\" data-end=\"1970\"\u003eWeight: 2 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xldzoc\" data-start=\"1972\" data-end=\"1997\"\u003eConstruction Features\u003c\/h3\u003e\n\u003cul data-start=\"1999\" data-end=\"2414\"\u003e\n\u003cli data-section-id=\"lu2r58\" data-start=\"1999\" data-end=\"2045\"\u003eE-Frame molded case circuit breaker design\u003c\/li\u003e\n\u003cli data-section-id=\"19ve5o9\" data-start=\"2046\" data-end=\"2118\"\u003eThermal-magnetic trip unit for overload and short-circuit protection\u003c\/li\u003e\n\u003cli data-section-id=\"a1ayo\" data-start=\"2119\" data-end=\"2165\"\u003eLong-time and instantaneous trip functions\u003c\/li\u003e\n\u003cli data-section-id=\"1wogizv\" data-start=\"2166\" data-end=\"2200\"\u003eBolt-on mounting configuration\u003c\/li\u003e\n\u003cli data-section-id=\"1vwhdqo\" data-start=\"2201\" data-end=\"2257\"\u003eVisual trip indicator for rapid fault identification\u003c\/li\u003e\n\u003cli data-section-id=\"1cbrnjo\" data-start=\"2258\" data-end=\"2293\"\u003eAluminum lug terminals included\u003c\/li\u003e\n\u003cli data-section-id=\"wdw8vp\" data-start=\"2294\" data-end=\"2327\"\u003eCalibrated for 40°C operation\u003c\/li\u003e\n\u003cli data-section-id=\"1tiy6x8\" data-start=\"2328\" data-end=\"2372\"\u003eDesigned for NF panelboard installations\u003c\/li\u003e\n\u003cli data-section-id=\"yypxk4\" data-start=\"2373\" data-end=\"2414\"\u003eHID-rated and HACR-rated construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"i46vpi\" data-start=\"2416\" data-end=\"2446\"\u003eElectrical Characteristics\u003c\/h3\u003e\n\u003cul data-start=\"2448\" data-end=\"2612\"\u003e\n\u003cli data-section-id=\"1c89akx\" data-start=\"2448\" data-end=\"2475\"\u003eLine Rated Current: 40A\u003c\/li\u003e\n\u003cli data-section-id=\"18b42ck\" data-start=\"2476\" data-end=\"2513\"\u003eMaximum Operating Voltage: 277VAC\u003c\/li\u003e\n\u003cli data-section-id=\"15g5ejr\" data-start=\"2514\" data-end=\"2539\"\u003eHolding Current: 270A\u003c\/li\u003e\n\u003cli data-section-id=\"mmmm6o\" data-start=\"2540\" data-end=\"2566\"\u003eTrip Unit Rating: 875A\u003c\/li\u003e\n\u003cli data-section-id=\"ftvtt1\" data-start=\"2567\" data-end=\"2612\"\u003eProtection Type: Short-Circuit \/ Overload\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"luma9c\" data-start=\"2614\" data-end=\"2628\"\u003eWire Range\u003c\/h3\u003e\n\u003cul data-start=\"2630\" data-end=\"2695\"\u003e\n\u003cli data-section-id=\"4aoqbm\" data-start=\"2630\" data-end=\"2663\"\u003eAluminum Conductors: AWG 12–6\u003c\/li\u003e\n\u003cli data-section-id=\"1hcr6lx\" data-start=\"2664\" data-end=\"2695\"\u003eCopper Conductors: AWG 14–6\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"wggvqn\" data-start=\"2697\" data-end=\"2713\"\u003eApplications\u003c\/h3\u003e\n\u003cul data-start=\"2715\" data-end=\"2923\"\u003e\n\u003cli data-section-id=\"ov2tsh\" data-start=\"2715\" data-end=\"2761\"\u003eCommercial electrical distribution systems\u003c\/li\u003e\n\u003cli data-section-id=\"132ucrr\" data-start=\"2762\" data-end=\"2805\"\u003eIndustrial power distribution equipment\u003c\/li\u003e\n\u003cli data-section-id=\"yo86gq\" data-start=\"2806\" data-end=\"2835\"\u003eHVAC equipment protection\u003c\/li\u003e\n\u003cli data-section-id=\"abxt4k\" data-start=\"2836\" data-end=\"2861\"\u003eHID lighting circuits\u003c\/li\u003e\n\u003cli data-section-id=\"1jabemj\" data-start=\"2862\" data-end=\"2891\"\u003eBranch circuit protection\u003c\/li\u003e\n\u003cli data-section-id=\"tdkmxw\" data-start=\"2892\" data-end=\"2923\"\u003eNF panelboard installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"131luvw\" data-start=\"2925\" data-end=\"2950\"\u003eStandards \u0026amp; Approvals\u003c\/h3\u003e\n\u003cul data-start=\"2952\" data-end=\"3186\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"11a7gqd\" data-start=\"2952\" data-end=\"2965\"\u003eUL Listed\u003c\/li\u003e\n\u003cli data-section-id=\"3h4a0l\" data-start=\"2966\" data-end=\"2982\"\u003eCSA Approved\u003c\/li\u003e\n\u003cli data-section-id=\"1uyovzg\" data-start=\"2983\" data-end=\"2996\"\u003eHID Rated\u003c\/li\u003e\n\u003cli data-section-id=\"mq9pch\" data-start=\"2997\" data-end=\"3011\"\u003eHACR Rated\u003c\/li\u003e\n\u003cli data-section-id=\"1fan452\" data-start=\"3012\" data-end=\"3111\"\u003eAuthentic \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eSquare D\u003c\/span\u003e\u003c\/span\u003e \/ \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eSchneider Electric\u003c\/span\u003e\u003c\/span\u003e product\u003c\/li\u003e\n\u003cli data-section-id=\"gh295n\" data-start=\"3112\" data-end=\"3186\" data-is-last-node=\"\"\u003eManufactured to EJB Series specifications for NF panelboard application\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Square D","offers":[{"title":"NEW","offer_id":48530480890105,"sku":"EJB14040","price":151.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/6000_b09545d8-c9bd-4c42-8109-2e4cf012612c.webp?v=1781498756","url":"https:\/\/mycircuitbreakers.com\/products\/square-d-ejb14040-bolt-on-molded-case-circuit-breaker-1-pole-40a-277vac-thermal-magnetic","provider":"My Circuit Breakers","version":"1.0","type":"link"}