Technical Data - Extech DE8WH Série Mode D'emploi

5. Function
The enclosures certified for hazardous areas in protection mode Ex d are robust materials designed to
meet the highest requirements for use especially in the oil and gas, chemical, pharmaceutical and food.
The flameproof enclosures DE8WH are available in many sizes, in painted steel or/and aluminium or
stainless steel AISI 316L. They are valuable for control, monitoring, automation, distribution board, motor
starter or any other applications. They are suitable for the design of complex systems.
These enclosures are designed to receive:

Internally, standard electrical components (not certified for explosive atmospheres)

On the surface, components such as pushbuttons, switches, pilot lights that have be certified in the
protection mode flameproof Ex d

6. Technical data

6.1. Certificates
Type of certificate
Global (IECEx)
Europe (ATEX)
6.2. Standards accordance
EX zones 1&2 due to gases, vapours and mist
EN / IEC 60079-0
EN / IEC 60079-1
EN / IEC 60079-11
6.3. Marking
Without Intrinsic safety
Ex d IIC T4 ... T6 Gb
Ex tb IIIC T85°C ... T135°C Db
6.4. Temperature

Ambient temperature range:

Storage temperature:
6.5. Dissipated power
Product code
DE8WH
DE8WH
DE8WH
DE8WH
DE8WH
DE8WH
DE8137A12–06– 01/12/2016
Certificate Nr. as Equipement
IECEx INE 14.0010X
INERIS 03ATEX0121X
Max. dissipated power allowed
whatever the content (W)
26
261
32
43
64
107
Operating instructions
Flameproof enclosure - DE8WH series
EX zones 21&22 for dusts
EN / IEC 60079-31
With Intrinsic safety
Ex d [ia] ou [ib] IIC T6 Gb
Ex tb IIIC T85°C Db
-40°C ... + 60°C
-50°C ... +70°C
45
60
165
270
330
600
Certificate Nr. as Component
IECEx INE 14.0009U
INERIS 14ATEX9004U
ENG
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