Document of Conformity

[13]

Schedule

[14] EU-TYPE EXAMINATION CERTIFICATE No.

DEMKO 15 ATEX 1346U Rev. 1

00-IC-F0056-2 – Issue 20.0

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 or 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 60079-0 and EN 60079-31.

The enclosure shall be constructed to block all sun and UV light from affecting the terminal blocks. The terminal blocks shall be

placed inside a suitable certified IP54 enclosure in type of protection “e” for gas atmosphere. For dust atmosphere the terminal

blocks shall be mounted inside a suitable certified enclosure (EN 60079-31) in type of protection “t”.

o Under normal operating conditions the temperature rise of the terminal blocks is maximum 40 K, measured at the maximum

permitted rated current. Due to the above mentioned the terminal blocks may be used in apparatus of temperature classes T6.

T1as long as the terminal block ambient temperature range is not exceeded. 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 WDK and WPE with other terminal blocks series or sizes or accessories the requirements for clearance

and creepage distances according to table 1 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 rating, resistance across the terminal please refer to the table under “types & electrical

rating” above. Details on creepages and clearance values and the required torque values please see Notice to installers.

o The terminal can be used with either one or two wires into either side of the terminal. When two wires are used they must be of the

same type, and of equal sizes. No other wire sizes or types than the ones specified in instructions must be used. The terminal

blocks must either be mounted next to another block of the same type and size or with an end plate.

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

o Unused terminals shall be tightened.

[18] Essential Health and Safety Requirements

The Essential Health and Safety Requirements (EHSRs) covered by the standards listed at item 9.

The trademark may 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.