Tunnel electrical terminal box with equipment

For cable installations with equipment

For mounting on solid walls or ceilings

Specially designed for use in road tunnels


Casing as terminal box with equipment for installation with 90 minutes maintenance of performance. The terminal box is specifically designed for use in road tunnels in order to
– guarantee the maintenance of performance of safety-related electrical systems such as emergency lighting and smoke clearance
– allow feed-through and branch wiring of maintenance-of-performance cables
– allow selective activation of individual power consuming devices such as fire emergency lights via fused branch connections.
Designed according to Directive 2004/54/EG, RABT, ZTV-ING Part 5.

Scope of delivery of the electrical terminal box


  • 90 minutes fire resistance: fire-resistant strip terminals
  • Classification: 90 minutes maintenance of performance
  • Safety class I
  • Protection rating in accordance with IP 65
  • Stable against pressure / suction up to 1000 Pa


  • Casing for mounting to a solid wall or solid ceiling
  • Cable entry possible from 4 sides
  • Mounting of casing to bottom of casing via enclosed cable tie mounts
  • Internal support rail with 5 fire-resistant jams up to 16 mm²

Material characteristic

  • Casing made of impact resistant, chemically highly stable plastic according to RABT and ZTV-ING Part 5
  • Colour light grey, similar to RAL 7035
  • Internal support rail made of galvanized sheet steel
  • Cable tie mount made of stainless steel 1.4529

Dimension drawing

Scope of delivery

  • Terminal box with support rail,
  • Threaded cable connectors,
  • Mounting hardware for wall mounting and ceiling suspension
File name
Catalogue excerpt .pdf
Text for tender PRIOELEC EK TUN .pdf