Frigoboat, "Merlin II", Automatic Smart Speed Controller for Danfoss BD35/50F Compressors


Frigoboat, "Merlin II", Automatic Smart Speed Control, for Danfoss BD35F and BD50F
SKU: 475236
Mfg# E52152
LFS# FGBE52152
UNIT: Each
In Stock - Ships out in 1 Business Day


Frigoboat, "Merlin II", Automatic Smart Speed Controller for Danfoss BD35/50F Compressors
  • A small circuit board that plugs onto the controller of Danfoss BD35F or BD50F compressors and controls the compressor speed automatically
  • Includes a green LED that shows the speed the compressor is running
  • Includes a red LED that shows fault codes if malfunction occurs
  • Merlin gives big energy savings while also protecting electronics and reducing stress on components

More Information on Compressor Speed Control



Ratings & Reviews

3 reviews

  • 3 stars
  • 0 reviews
  • 2 stars
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  • 1 star
  • 0 reviews

Unit works as described, good service from Go2Marine


Unit works as described.
<br>Go2Marine / LFS shipped the product very quickly so it arrived earlier than expected. Good service so far.
<br>As for the product, it works exactly as described, though from a design perspective it would be better if it was in its own project box to protect it and cables available to make the appropriate connections. A fan speed controller which it does not have (fan is on or off) would be a good enhancement.

Peter Searle


Easy and had good international delivery rates

Not to worry!


A little bit concerned as this item is not returnable. But it is an exact replacement for the Merlin II for the BD35/50F. Ran the fridge for several hours and it performed perfectly.




The length of the warranty may vary by product, please refer to your product for the exact terms and conditions of the warranty for your purchase.


  • All returns must be recevied within 30 days of receipt.
  • Manufacturer defects reported within 30 days of receipt will be supplied a pre-paid label for return shipping upon approval.
  • Please contact Go2marine LFS Marine and Outdoor for Manufacture Defects, Returns and help with Warranties.