Shelyak Power supply 12V/3A

This 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).

While 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.

Yes, 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.

A 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.

Center-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.

The 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.