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

Application
The DER,DTR 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.
TECHNICAL DATA
Hazardous Area Gas Dust
Zones 1 & 2 21 & 22
Equipment Group/Category Ex  II 2G Ex  II 2D
Symbol of Protection  (DER) Ex e II Gb Ex tb IIIC Db IP66
Symbol of Protection  (DTR) Ex d IIC T6/T5 Gb Ex tb IIIC T80°C/T100°C Db IP66
Certificate (DER) Nemko 12  ATEX 1248 U 
Certificate (DTR) Nemko 12  ATEX 1249 
Conformity to Standard 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
Entries NPT or Metric threads
Mechanical resistance 7Nm. Of impact energy
SPECIFICATION
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
OPTION
CATALOGUE NUMBER AND DIMENSION