4.Junction Boxes / Terminal Boxes, DER/DTR series

The DER junction boxes (empty enclosures) and DTR ter-mina boxes
are designed for taps,minal boxes 
are designed for taps, splices or 
splices or connecting of conductor 
for control and instrument.These 
boxes are suit-able for explosive
atmospheres Zone 1, 2 and Zone
21, 22.
Hazardous Area Gas Dust
Zones 1 & 2 21 & 22
Conforming to ATEX Ex II 2G Ex II 2D
Symbol of Protection ATEX Ex d IIC Gb Ex tb IIC Db 
Symbol of Protection IEC
ATEX Certificate DER series;     Nemko 12 ATEX 1248U
  DTR series;     Nemko 12 ATEX 1249
T Rating T6 (Ta 40 oC )  NA
  T5 (Ta 55 oC )
Surface Temp. NA T85oC (Ta 40 oC ) 
    T95oC (Ta 55 oC )
Standard ATEX Directive 2014/34/EU, std. EN 60079-0:2009,  
  EN 60079-1:2007, EN 60079-31:2009
Ambient Temperature -20 oC to +55 o  
Index of Protection IP66  
Mounting Wall type  
Terminal  Terminal block for 0.5- 6 mm. 2  cable
Entries NPT or Metric thread  
Mechanical resistance  ≥7Nm. of impact energy  
Body and cover  : Marine grade copper-free aluminium alloy
    with polyester powder coated, RAL 7032 (grey)
Sealing (O-ring)  : Silicone -40°C to +175°C
Screws  : Stainless steel