Manufacture of accessories for electrical and communications installations

Redes Trenzadas Aislantes (Retrensa) is a company dedicated to the manufacture of accessories for electrical and communications installations.

Since our foundation in 1984, we have specialized in the manufacture of plastic-coated steel supports and clamps, in addition to the supply of other complementary products.

We provide our personalized products and services on demand in the following sectors:





  • Plastified supports and clamps
  • Fiber optic cable accessories made of synthetic material
  • Supports and line clamps on synthetic material
  • Iron fittings, staples and other cabling accessories
  • Inox wraps
  • Lifeline anchorage connectors
  • Caps
  • Plugs
  • Hooks
  • Steel wire
  • Turnbuckles
  • Preformed (dead-ends)

Quality Certificates

Portada del catálogo de productos de Retrensa.