Document of Conformity

IECEx Certificate

of Conformity

Certificate No: IECEx ULD 16.0036U Issue No: 2

Date of Issue: 2019-01-27

Schedule

Ex Component(s) covered by this certificate is described below:

The feed through and protective terminal blocks Type ZDK, ZDU, ZDUA, ZDUB, ZPEA, ZPEB and ZPE are for the connection of copper

conductors in enclosures. The type of protection is increased safety, “eb”, insulating parts made of Wellamid or Durethan, with optional

accessories, Type ZQV and ZQB plug in cross-connectors.

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Please see Annex and Schedule of Limitations for additional information.

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SCHEDULE OF LIMITATIONS:

The feed through and protective earth terminal blocks are suitable for use in enclosures in atmospheres with flammable gases and

combustible dust. For use in flammable gases these enclosures must satisfy the requirements according to IEC 60079-0 and IEC

60079-7. For combustible dust these enclosures must satisfy the requirements according to IEC 60079-31.

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The terminal blocks shall be placed inside a suitable IECEx certified IP54 enclosure for gas atmosphere. For dust atmosphere the

terminal blocks shall be mounted inside a suitable IECEx certified ‘t’ enclosure (IEC 60079-31).

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

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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)

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When using the types ZDK, ZDU, ZDUA, ZDUB or ZPE with other terminal blocks series or sizes or accessories, the requirements for

clearance and creepages distances according to IEC 60079-7 must be observed. Regarding the use of covers, cross-connectors and

end brackets the instructions of the manufacturer must be followed.

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For cross connection accessories current and voltage rating, resistance across the terminal please refer to “Notice to installers”.

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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.

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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.

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Manually cut cross connections and cross connections with blank ends (ZQV´s ≥ 20 poles) shall not be used.

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