STEELDESIGNStainless steel housing to size
Stainless steel housing to size
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Stainless steel housing to size
Hotline: +49 2241 2646-0
Contact form

Technical Description
ExLine Terminal Boxes

Construction Example

Construction Type

Your benefit from ExLine terminal boxes of STEELDESIGN are convincing technical details:

  • IP66-certified sealing system
  • Explosion-protected empty housing in the ignition protection type increased safety "e"
  • Closed stainless steel housing: Water and dust layer 

Protection Class IP66

  • Information on all protection type classes here »


  • Stainless steel 1.4301, AISI 304
  • Stainless steel 1.4404, AISI 316L (V4A)
  • Stainless steel 1.4571, AISI 316Ti (V4A)
  • Other material on request

Material Thickness

  • depending on customer requirement and desired housing size, between 1.25 mm and 2 mm

Ambience Temperature

Ambience temperature range pursuant to EN 60079-0:2007

a.) maximum  - 40°C to +120°C when using an EPDM – heat seal
b.) maximum  - 55°C to +140°C when using an silicone foam – seal

Tests and Certificates

  • Our EX - Line housings have a VDE mark pursuant to the protection degree test pursuant to EN 60529 IP66.

Protection class:

  • EN 60529:1991 + A1:2000 / IEC 60529:1989 + A1:1999 maximum IP66

Construction Features

  • The lid is supported on the body 2 mm towards the inside:
  • IP66: Protection against ingressing water/dust, knife edge seal without gap for all housing sizes 

General Specifications

The standard empty housing and connection flanges of the EX line type series comprise of stainless steel pursuant to EN 10088. The housings and doors are produced of at least 1.25 mm thick stainless steel sheet 1.4301 or higher as canting and welding constructions depending on size and design.

In addition to the closures, the doors can be screwed with multifunction nuts that are welded on outside of the sealing area.

Bores and cut-outs can be applied to the door, rear wall, floor and the side walls. They serve to take up cable and line introductions only in the prescribed protection types. The flange plates are produced of at least 2.0 mm thick stainless steel sheet and screwed on tightly to the housing using EPDM form seals

Closure IP66

  • Welded-on multifunction nuts
  • Screw connection with recessed screws and conical insertion that are applied outside of the sealing space

Wall Attachment

  • The housing may be assembled by outside wall tabs that are protect against twisting. Alternatively, the retraction nuts in the housing can be used.


  • A marking sign of corrosion and heat-resilient material is attached self-adhesively to the device for marking.
  • The marking sign contains the data required in EN 60079-0:2006, section 29.

The Corresponding Accessories are Available for the Individual Setups:

  • Gas pressure spring
  • Grounding belt
  • Additional accessories can be produced on request


Housing solutions can be individually prefabricated and equipped according to your wishes:

An assembly plate can be screwed in inside the housing to attach installation parts.

If the housing is developed further with different attachment and installation parts for an electrical equipment (e.g. control), the overall device requires re-.approval

  • Assembly Plate
  • Serial terminals
  • Wall tab set
  • accessories of stainless steel
  • Flange plates 
Furthermore, the housings can be produced with punched sheets and cut-outs as well, depending on customer requirements


Flange seals:

a.) EPDM heat sealing frame 2 mm thick unilaterally self-adhesive, temperature resilience: (- 40°C to + 120°C)

b.) Silicone foam profile 3x15 unilaterally self-adhesive, temperature resilience: (- 55°C to + 140°C)

Lid seal:

  • Silicone foam profile 8 x 20 mm unilaterally self-adhesive for the housing door
    Temperature range: (-40°C to 120°C)


Individual surfaces available

  • Polished, grain size 240
  • Polished, grain size 320
  • Polished
  • Electropolished
  • Satinated
  • Glass-bead-blasted
  • CleanLine Nano-coating (more information here »)
  • Laser-labelled
  • Embossing
  • Screen print
  • Engraving
  • Additional surfaces on request