{"product_id":"em250s12ac-250w-outdoor-magnetic-12vac-transformer","title":"EM250S12AC 250W Outdoor Magnetic 12VAC Transformer","description":"\u003ch3\u003eEM250S12AC 250W Outdoor Magnetic 12VAC Transformer\u003c\/h3\u003e\n\u003cp\u003eThe EM250S12AC is a 250W outdoor magnetic transformer \/ LED AC driver designed to supply stable 12VAC power to compatible low voltage lighting loads. Its encapsulated transformer is housed in a black powder-coated NEMA 3R steel enclosure for protected outdoor installations.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose the EM250S12AC?\u003c\/h3\u003e\n\u003cp\u003e✔ \u003cstrong\u003e250W Single-Circuit Output\u003c\/strong\u003e\u003cbr\u003eDelivers up to 250W on a single 12VAC circuit for compatible low voltage lighting systems.\u003c\/p\u003e\n\u003cp\u003e✔ \u003cstrong\u003eOutdoor NEMA 3R Enclosure\u003c\/strong\u003e\u003cbr\u003eBlack powder-coated steel housing is designed for protected outdoor power applications.\u003c\/p\u003e\n\u003cp\u003e✔ \u003cstrong\u003eIntegrated Circuit Protection\u003c\/strong\u003e\u003cbr\u003eIncludes manually reset primary and secondary breakers for transformer protection.\u003c\/p\u003e\n\u003cp\u003e✔ \u003cstrong\u003e93% Efficiency\u003c\/strong\u003e\u003cbr\u003eManufacturer-rated efficiency supports dependable power delivery at full load.\u003c\/p\u003e\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e 120V 60Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Input Current:\u003c\/strong\u003e 2A at full load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Voltage - No Load:\u003c\/strong\u003e 12.7VAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Voltage - Fully Loaded:\u003c\/strong\u003e 11.5VAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Total Wattage:\u003c\/strong\u003e 250W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Output Current:\u003c\/strong\u003e 20.8A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficiency:\u003c\/strong\u003e 93%\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eConstruction \u0026amp; Certification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure:\u003c\/strong\u003e Black powder-coated steel, outdoor NEMA 3R\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransformer Construction:\u003c\/strong\u003e Encapsulated magnetic transformer with separated primary and secondary windings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e Conforms to UL 2108; certified to CSA C22.2 No. 250.0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Breaker:\u003c\/strong\u003e 5A manually reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Breaker:\u003c\/strong\u003e 25A manually reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 8 × 4.1 × 3.24 in\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to Select the 250W 12VAC outdoor magnetic transformer\u003c\/h3\u003e\n\u003cp\u003eChoose the EM250S12AC when a project requires a 250W 12VAC outdoor magnetic transformer and the available supply matches 120V 60Hz. Confirm that every connected fixture accepts 12VAC and that the planned load fits the transformer’s circuit configuration. Its black powder-coated NEMA 3R steel enclosure is intended for outdoor transformer installations.\u003c\/p\u003e\n\u003cp\u003eThis is a single-circuit model, so all connected fixture wattage counts toward the listed 250W maximum. The specifications show 12.7VAC at no load and 11.5VAC at full load, giving installers a reference for expected output as the connected load changes. Final transformer location, wiring, circuit protection and code compliance should be reviewed by a qualified installer before the system is energized.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat lighting systems can use the EM250S12AC?\u003c\/strong\u003e\u003cbr\u003eThis 250W 12VAC outdoor magnetic transformer is intended for compatible low-voltage landscape or architectural lighting that accepts 12VAC power. The connected load must stay within the listed 250W capacity and 20.8A output-current limit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the EM250S12AC dimmable?\u003c\/strong\u003e\u003cbr\u003eDimming is not listed as a feature in the supplied product data. Confirm dimmer compatibility in the EMCOD specification sheet before designing a dimming system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this transformer be installed outdoors?\u003c\/strong\u003e\u003cbr\u003eYes. Its black powder-coated NEMA 3R steel enclosure is specified for outdoor transformer installations. Final placement and wiring must still follow the product instructions and applicable electrical requirements.\u003c\/p\u003e\n\u003cp\u003eCompare voltage, capacity, circuit and enclosure options in our \u003ca href=\"\/collections\/transformer\"\u003elow-voltage landscape lighting transformer collection\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOfficial EMCOD Specification Sheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.emcod.com\/products\/info\/download?spec_sheet=303\" target=\"_blank\" rel=\"noopener\"\u003eDownload PDF\u003c\/a\u003e\u003c\/p\u003e","brand":"EMCOD","offers":[{"title":"Default Title","offer_id":50902783426803,"sku":"EM250S12AC","price":141.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/5752\/7795\/files\/Capturadepantalla2026-09-06ala_s_10.36.36p.m..png?v=1788755802","url":"https:\/\/shopluminouslighting.com\/products\/em250s12ac-250w-outdoor-magnetic-12vac-transformer","provider":"Luminous Landscape LLC","version":"1.0","type":"link"}