{"product_id":"shelyak-el0073","title":"Shelyak Power supply 12V\/3A","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDelivers a regulated 12V DC output\u003c\/li\u003e\n\u003cli\u003eProvides up to 3A of current\u003c\/li\u003e\n\u003cli\u003eFeatures a 2.5mm x 5.5mm barrel connector\u003c\/li\u003e\n\u003cli\u003eStandard center-positive polarity\u003c\/li\u003e\n\u003cli\u003eIncludes a European format (220V) mains cable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePower supply 12V\/3A\u003c\/h2\u003e\n\u003cp\u003eThis switching power supply provides a regulated 12V DC output at up to 3A through a standard 2.5mm x 5.5mm center-positive barrel connector, ensuring reliable power for compatible astronomical mounts, cameras, and accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e12V\/3A DC Power with a 2.5mm Center-Positive Plug\u003c\/h3\u003e\n\u003cp\u003eThe 12V, 3A specification is a common standard for powering equatorial mounts, cooled CMOS cameras, and other high-draw accessories. This unit maintains stable voltage for your equipment, which is critical for consistent tracking performance and low-noise sensor operation during imaging.\u003c\/p\u003e\n\u003cp\u003eThe 2.5mm x 5.5mm center-positive plug is one of the most common connectors in the hobby, but you must always verify the power requirements of your specific device before connecting. This power supply ships standard with a European format 220V mains cable; please contact us if you require a 110V US format cable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat devices can I power with this 12V\/3A power supply?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis power supply is designed for astronomical equipment requiring a 12V DC input and drawing up to 3A of current. This commonly includes many models of equatorial mounts, cooled astronomy cameras, and electronic filter wheels. Always check your device's manual for its specific power requirements, including the connector size (2.5mm x 5.5mm) and polarity (center-positive).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this 12V\/3A power supply work for my Celestron AVX mount in the US?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile many Celestron mounts use a 12V input, you must verify two things. First, check that the mount's power port matches the 2.5mm x 5.5mm barrel plug and requires center-positive polarity. Second, this unit ships with a European 220V mains cable by default. To use it in the US, you will need to request a 110V US format cable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this 12V\/3A power supply regulated?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a switching power supply, which means it provides a regulated 12V output. This is crucial for sensitive electronics in astronomy gear, as it protects them from voltage fluctuations and ensures stable operation for tasks like long-exposure imaging and precise mount tracking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI plan to power a ZWO ASI2600MC Pro camera. Is this 3A supply sufficient?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA ZWO ASI2600MC Pro's TEC cooler can draw 3A on its own at 100% cooling power. While this supply matches that peak requirement, there is no headroom for other accessories like a dew heater or electronic filter wheel. It is critical to add up the maximum current draw of all devices you intend to power simultaneously to ensure your power supply's amperage is sufficient.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is 'center-positive polarity' and why does it matter for this power supply?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eCenter-positive polarity means the center pin of the 2.5mm connector is the positive (+) terminal, and the outer barrel is the negative (-). Using a power supply with the wrong polarity can permanently damage the electronics in your telescope or camera. Always confirm your device requires a center-positive connection before plugging it in.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eThe power supply comes with a European cable. How do I get a US version?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe unit includes a European format (220V) mains cable as standard. If you are in a region that uses 110V mains voltage, such as the United States, please contact us to request the appropriate US format cable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Current\u003c\/td\u003e\n\u003ctd\u003e3A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003e2.5mm x 5.5mm Barrel Plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolarity\u003c\/td\u003e\n\u003ctd\u003eCenter-Positive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Cable\u003c\/td\u003e\n\u003ctd\u003eEuropean (220V) format included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e12V\/3A Switching Power Supply\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEuropean (220V) Mains Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/shelyak-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eShelyak 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shelyak","offers":[{"title":"Default Title","offer_id":52943028977949,"sku":"SHK-EL0073","price":40.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Shelyak-Power-supply-12V-3A-1_e66b018e-4113-4125-9035-809d50934954.jpg?v=1789615867","url":"https:\/\/davidastro.com\/fr\/products\/shelyak-el0073","provider":"David Astro","version":"1.0","type":"link"}