{"product_id":"schneider-electric-fja140505","title":"Schneider Electric FJA140505 50A 1-Pole 277 V Circuit Breaker Potential Transformer","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Schneider Electric FJA140505: a 50 A, 1-pole, 277 V circuit breaker with an integrated potential transformer. Engineered for reliability in commercial and industrial panels, this unit combines robust protection with metering-ready sensing in a compact, easy-to-install package.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e FJA140505\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 50 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePole:\u003c\/strong\u003e 1\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 277 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Circuit breaker with integrated potential transformer for sensing and metering\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this matters\u003c\/h3\u003e\n\u003cp\u003eIn modern electrical systems, precise current sensing and robust protection are essential. The built-in potential transformer provides a low-voltage signal for metering devices or building management systems without the need for extra components. This simplifies wiring, enhances measurement integrity, and supports accurate energy reporting, demand management, and fault detection across your 277 V infrastructure.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e277 V lighting distribution and small-to-midsize loads in commercial environments\u003c\/li\u003e \u003cli\u003ePanelboard protection that benefits from integrated sensing for energy meters or BMS integration\u003c\/li\u003e \u003cli\u003eNew installs or retrofits where compact wiring and streamlined metering are priorities\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat to expect with installation\u003c\/h3\u003e\n\u003cp\u003eDesigned to fit standard Schneider Electric panel configurations, the FJA140505 integrates smoothly into appropriate 277 V systems. Confirm compatibility with your panelboard and ensure the connected load remains within the 50 A rating. The integrated transformer enables metering-ready signaling directly from the breaker, reducing external components and wiring complexity.\u003c\/p\u003e \u003ch3\u003eCompetitive advantages\u003c\/h3\u003e\n\u003cp\u003eThis model stands out by marrying protection and monitoring in a single device. By cutting down extra cabling and potential points of failure, it accelerates commissioning for energy monitoring projects and simplifies ongoing facilities management.\u003c\/p\u003e \u003ch3\u003ePractical tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePair with compatible energy meters or BMS interfaces that accept the transformer's low-voltage output for accurate monitoring.\u003c\/li\u003e \u003cli\u003eIncorporate routine preventive maintenance for both the breaker and transformer connections to ensure consistent performance.\u003c\/li\u003e \u003cli\u003eFollow manufacturer torque specifications for line and load terminals to maintain reliable operation at the 50 A rating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Schneider Electric","offers":[{"title":"Default Title","offer_id":46423232708770,"sku":"FJA140505","price":1955.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/schneider-electric-fja140505","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}