Ex e Terminal Boxes Stainless Steel (Return Flange) | Zone 1 Zone 2 ATEX Certified | Pepperl+Fuchs FXLS Series

Ex e Terminal Boxes stainless steel (Return flange)

The FXLS series of hazardous area terminal boxes, manufactured by Pepperl+Fuchs can be equipped with various quantities and types of terminals, cable glands. Any custom configuration, including combinations of terminals and controls can be added to suit the needs of the end user – Contact us for details.

Enclosures are manufactured from electropolished, 316L grade stainless steel as standard.  This is to provide excellent resistance to tarnishing and corrosion.

All FXLS enclosures feature a return flange sealing method which prevents accumulated dirt, dust and moisture from entering the enclosure when the hinged lid is opened.

This surface finish on the durable stainless steel means that FXLS terminal boxes are ideally suited to meet hygienic requirements valid in pharmaceutical and food processing plants.

These ATEX terminal boxes and enclosures are certified for operation in temperatures between –50 °C and +120 °C can be used in many different applications as a replacement for stainless steel.

Stainless Steel Terminal Boxes | FXLS

Stainless Steel Terminal Boxes | FXLS

ex e terminal boxes – Features

  • Stainless Steel enclosure
  • Suitable for installation in hazardous area Zone 1, Zone 2, Zone 21 and Zone 22
  • Ex e, Ex ia and Ex tb certified
  • 21 enclosure size options available
  • Return Flange Sealing
  • Customisable configuration of terminals, cable entries and cable gland types as per specification
  • Up to 4 gland plates
  • Wide range of accessories available
  • Suitable for operation in Class I, II Division 2
  • Suitable for operation in Class I Zone 2, Class II Zone 22

ex e Terminal boxes – Dimensions

FXLS Terminal Box Dimensions

FXLS Terminal Box | Dimensions


A Height
B Width
C Depth
D Internal height
E Internal width
F Internal depth to surface mounting plate
G Mounting holes distance, vertical
H Mounting holes distance, horizontal
J Mounting holes diameter
K Maximum external dimension with mounting brackets
[A] – [D] Cable entry faces

➡ For full details of dimensional values see data sheet.

ex e terminal boxes – ordering information

This table shows how to put together the order code for your required Terminal Box.

For example, if you wish to order a Stainless Steel terminal box, size 3 increased depth, for intrinsically safe circuits with gland plate at the bottom the correct order code would be as follows – FXLS331D.T-Y

FXL S 3 3 1 D .T -Yxxxxxx
FXL – metal enclosure with return flange Material
S – Stainless Steel
Enclosure Size
1 – 11
for dimensions see data sheet
Type of Explosion Protection
1 – Ex e, Ex tb
3 – Ex ia, Ex tb
5 – Ex ia / Ex e, Ex tb
Gland plate at face(s)
0 – none
1 – face B
2 – faces A, B
3 – faces B, C, D
4 – faces A, B, C, D
Enclosure Depth
DIncreased depth 
Type of Solution
T – Terminal Box
Variant number
Cxxxxxx – configured variants
Yxxxxxx – engineered variants

Hazardous Area Certifications & COMPLIANCE

EU-Type Examination Certificate – CML 16 ATEX 3008X


Ex II 2 GD
Ex eb IIC T* Gb, Ex db eb IIC T* Gb, Ex tb IIIC T** Db or Ex ia IIC T* Gb, Ex tb IIIC T** Db or
Ex eb IIC T* Gb, Ex ia IIC T* Gb, Ex tb IIIC T** Db
T6/T80 °C @ Ta +40 °C
T5/T95 °C @ Ta +55 °C
T4/T125 °C @ Ta +85 °C
T3/T160 °C @ Ta +120 °C

➡ See the complete range of Terminal Boxes & Junction Boxes for Explosion Protection Applications

Pepperl Fuchs

Electrical Explosion Proof Equipment for Hazardous Areas | ATEX & IECEx Certified

Hazardous Area Electrical Equipment

Junction Boxes Exe Exd | Control Units Exe Exd | Control Stations Ex d | Control Panels Ex d | Switch Disconnectors Ex d

Data Sheets