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Pegasus Astro Pack of 2 cables 2.1mm Male to RCA Female 15cm

Pegasus Astro Pack of 2 cables 2.1mm Male to RCA Female 15cm

by Pegasus Astro
SKU PEG-CABL-21MRCAF
CA$20.00 - CA$20.00
CA$20.00
CA$20.00 - CA$20.00
CA$20.00
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  • Connects 2.1mm DC power outputs to RCA-style inputs
  • Rated for a maximum current of 5A
  • 15cm (0.5 ft) length for compact connections
  • Sold as a pack of two cables
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • Pack of 2 Cables: 2.1mm Male to RCA Female - 15cm

    This pack of two adapter cables converts a standard 2.1mm DC male power output to an RCA female input over a compact 15cm (0.5 ft) length. Each cable is rated to handle a maximum current of 5A, making them a reliable solution for powering common astronomy accessories like dew heater straps from modern power distribution units.

    Convert 2.1mm DC to RCA: Power Your Dew Heaters at up to 5A

    Many popular dew heater straps from brands like Kendrick and others use an RCA-style male plug for power. These adapter cables bridge the gap between those heaters and the 2.1mm center-positive DC outputs found on nearly all modern astronomy power boxes. The robust construction supports up to 5A of current, sufficient for even large, power-hungry dew straps used on Schmidt-Cassegrains or large refractors.

    The short 15cm length is ideal for cable management at the telescope, minimizing the potential for snags or excess wiring loops. By keeping the connection point close to your power box or controller, you can create a cleaner and more reliable setup.

  • What are these 2.1mm to RCA adapter cables typically used for in astronomy?

    Their primary use is to connect dew heater straps that have male RCA plugs to power distribution hubs like the Pegasus Astro Pocket Powerbox or ZWO ASIAIR, which use 2.1mm DC output ports. This allows you to control and power your dew heaters from a central device.

    Is the 5A current rating sufficient for my dew heater?

    Yes, a 5A maximum current is more than enough for the vast majority of dew heater straps. Most straps for common telescope sizes (e.g., 80mm refractors to 11" SCTs) draw significantly less than 5 amps, even at 100% power. This rating provides a safe margin for reliable operation.

    Will these adapter cables work with any brand of dew heater?

    These cables will work with any dew heater that uses a standard male RCA plug for its power connection. This is a very common standard in the industry, but you should always check the plug on your specific heater strap to confirm.

    Is the 15cm length of these adapter cables long enough for a large telescope?

    The 15cm (0.5 ft) length is intended to be a short "pigtail" adapter, not a full-length extension. It's designed to connect a dew heater's own power cord to a power box mounted nearby on the telescope's dovetail or accessory plate. For most setups, this is the perfect length to avoid cable clutter and snags.

    Can I use these adapter cables to power my Kendrick dew strap from a Pegasus Astro Pocket Powerbox Advance?

    Absolutely. The Pegasus Astro Pocket Powerbox Advance features 2.1mm DC outputs, and Kendrick dew heaters typically use RCA plugs. This adapter is the exact component needed to make that connection securely and reliably.

    Will these cables introduce any voltage drop to my dew heaters on an 8" f/10 SCT?

    Due to their very short 15cm length and proper gauge wiring for the 5A rating, any voltage drop from these adapter cables will be negligible and will not impact the performance of your dew heaters. Your heater straps will receive virtually the full voltage supplied by your power box.

  • Connector A 2.1mm DC Male Plug
    Connector B RCA Female Jack
    Quantity 2 Cables per Pack
    Max Current 5A
    Length 15cm / 0.5 ft

    • 2.1mm Male to RCA Female Adapter Cable (15cm)

      × 2

  • Pegasus Astro 2-Year Warranty