Approval/Certificate/Document of Conformity

[13] Schedule
[14] EU-TYPE EXAMINATION CERTIFICATE No.
DEMKO 16 ATEX 1729U Rev. 1
00-IC-F0056-2 – Issue 18.1 This certificate may only be reproduced in its entirety and without any change, schedule included. Page 3 of 3
[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 (EN 60079-31).
o The enclosure shall be constructed to block all sun and UV light from affecting the terminal blocks.
o Under normal operating conditions the temperature rise of the terminal blocks is max. 40 K, measured with the max permitted
rated current . Due to the above mentioned the terminal blocks may be used in apparatus of temperature classes T6…T1 as long
as the terminal block ambient temperature range is not exceeded as shown below. No part of terminal block must exceed 110 °C
under any condition.
▪ T6 (- 60°C ... +40 °C)
▪ T5 (- 60°C … +55 °C)
▪ T4 (- 60°C … +70 °C)
o When using the types ZDK with other terminal blocks series or sizes or accessories, the requirements for clearance and
creepage distances according to table 2 of EN 60079-7 must be observed. Regarding the use of covers, cross-connectors and
end brackets the instructions of the manufacturer must be followed.
o For cross connection accessories current and voltage rating, resistance across the terminal please refer to “Notice to installers”.
o If smaller conductor cross sections than the rated conductor cross sections are used, then the corresponding lower current shall
be stated in the Certificate of the complete apparatus
[18] Essential Health and Safety Requirements
The Essential Health and Safety Requirements (EHSRs) covered by the standards listed at item 9.
Additional information
The trademark will be used as the company identifier on the marking label.
The manufacturer shall inform the notified body concerning all modifications to the technical documentation as described in Annex III to
Directive 2014/34/EU of the European Parliament and the Council of 26 February 2014.