Approval/Certificate/Document of Conformity
 [13]
   Schedule 
 [14]   EU-TYPE EXAMINATION CERTIFICATE No. 
DEMKO 14 ATEX 1338U Rev.5 
00-IC-F0056-2 – Issue 20.0 
This certificate may only be reproduced in its entirety and without any change, schedule included.    Page 5 of 6 
WQV 4 
See 
NTI 
See NTI 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 
WQV 6 
See 
NTI 
See NTI 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 
WQV 10 
See 
NTI 
See NTI 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 
WQV 16 
See 
NTI 
See NTI 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 
WQV 35 
See 
NTI 
See NTI 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 
WQV 35N 
See 
NTI 
See NTI 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 
WQV 50N 
See 
NTI 
See NTI 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 
TYPE 
Rated 
voltage 
 (V) 
Rated 
Current 
(A) 
Resistance 
across 
terminals 
(uΩ) 
Strip 
length 
for min 
wire 
size 
(mm) 
Solid 
wire 
size 
(mm
2
) 
Stranded 
wire size 
(mm
2
) 
Flexible 
wire 
size 
(mm
2
) 
2 wires in 
one terminal 
(mm
2
) 
WQV 70/95 
See 
NTI 
See NTI 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 
WQV 70N 
See 
NTI 
See NTI 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 
WQV 95/120 
See 
NTI 
See NTI 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 
WQV 120 
See 
NTI 
See NTI 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 
**Two alternate constructions under one Cat. No. 
NOTE: NTI = Notice to installer 
Temperature range 
The ambient temperature range is -60°C to +70 °C depending of T-Code. 
Refer to [17] Schedule of limitations.  
The service temperature range is -60 °C to +110 °C. 
Routine tests 
  According to EN 60079-7 clause 7.1 in combination with clause 6.1 a dielectric strength test has to be carried out. The routine tests may 
be performed on a statistical basis according to ISO 2859-1 with an acceptance quality limit (AQL) of 0,04. Routine test is to be carried 
out according to Weidmuller procedure “High voltage test” Document -NR: A_10_54.  
 [16]  Descriptive Documents 
The scheduled documents are listed in the report no. provided under item no. [ 8 ] on page 1 of this EU-Type Examination Certificate. 
 [17]  Schedule of limitations: 
o  The feed through and protective conductor terminal blocks are suitable for use in enclosures in atmospheres with flammable 
gases and combustible dust. For flammable gases these enclosures must satisfy the requirements according to EN 60079-0 and 
EN 60079-7. For combustible dust these enclosures must satisfy the requirements according to EN 60079-31. 
o  The terminal blocks shall be placed inside a suitable ATEX certified IP54 enclosure for gas atmosphere. For dust atmosphere the 
terminal blocks shall be mounted inside a suitable ATEX certified ‘t’ enclosure (EN60079-31).  
o  The enclosure shall be constructed to block all sun and UV light from affecting the terminal blocks. 






