Direct Burial Transformers (840DB)

Category: Transformers
Spec Sheet: Click to View

Unique Lighting Systems’ Subterranean transformer is fully potted and sealed making it completely waterproof. Equipped with primary fuse protection and optional secondary in-line fusing the Subterranean is ideal for commercial projects or residential applications where concealing the power source is necessary.


  • Core - Engineered single core design with precision grain-oriented steel laminations. High temperature glass-impregnated nylon bobbin and solid copper mag wire.  To ensure robust construction each output tap is welded to the mag wire for optimum connectivity.
  • Construction - Double UV resistant composite box.  Suitable for direct burial.  Agency approval as "SUITABLE FOR GROUND MOUNTED RECESSED."
  • Primary Protection - Replaceable 3AG Time Delay (glass slow-blow fuse).
  • Power - Unit must be hardwired.
  • Electrical Requirements - Available power ratings 310, 360, 500, 600, 840 and 1120 Watts.  Primary voltage is 120 volts, secondary voltage varies from 12V-22V output.  See individual models for exact output leads.
  • Output Terminal - Each DB includes ready to wire color coded 10 gauge output wire lead.
  • Finish - Black UV resistant composite box standard.
  • Warranty - All transformers from Unique Lighting Systems carry a limited lifetime warranty against manufacturers' defects.

*See specification sheet link for complete details and ordering options.  Online price is for the model number listed above*


Unique Lighting Systems
Product Catagories

Accent and Flood Lighting


Deck, Step and Brick Lighting

Down Lighting


Inground and Well Lights

LED Retrofit Lamps

Path Lighting

Specialty Lighting


Underwater Lighting


Have a Question? Contact Us

Cascade Lighting
3395 Miller Park Road, Suite 1
Akron, OH 44312
Toll Free: 1-800-758-6359
Phone: (330) 733-7070
Fax: (330) 733-4868