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IECEx Certificate
of Conformity

IEC Certification Scheme for Explosive Atmospheres
for rules and details of the IECEx Scheme visit

Certificate No.:
IECEx UL 08.0003X issue No.: 6
Date of Issue:2014-07-30Page 1 of 4
Pepperl + Fuchs Inc.
1600 Enterprise Pkwy
Twinsburg, OH 44087
United States of America
Equipment:Purge and Pressurization System - 6000 Series
Optional accessory:
Type of Protection:Flameproof "d", Intrinsically Safe "ib", Pressurization "px"


Ex d [ib px] IIC T4

Ex ib [px] IIC T4

Ex ib [ibD] IIC T4

Ex ib IIC T4 / Ex ibD 21 T210°C

Approved for issue on behalf of the IECEx
Certification Body:
Paul T. Kelly

Position:Principal Engineer, Global Hazardous Locations

(for printed version)
1. This certificate and schedule may only be reproduced in full.
2. This certificate is not transferable and remains the property of the issuing body.
3. The Status and authenticity of this certificate may be verified by visiting the Official IECEx Website.

  Certificate issued by:
333 Pfingsten Road
Northbrook IL 60062-2096
United States of America


IECEx Certificate
of Conformity

Certificate No.:IECEx UL 08.0003X
Date of Issue:2014-07-30Issue No.: 6
Page 2 of 4
Pepperl + Fuchs Inc.
1600 Enterprise Parkway
Twinsburg, OH 44087
United States of America

Additional Manufacturing location(s):


This certificate is issued as verification that a sample(s), representative of production, was assessed and tested and found to comply with the IEC Standard list below and that the manufacturer's quality system, relating to the Ex products covered by this certificate, was assessed and found to comply with the IECEx Quality system requirements. This certificate is granted subject to the conditions as set out in IECEx Scheme Rules, IECEx 02 and Operational Documents as amended.

The apparatus and any acceptable variations to it specified in the schedule of this certificate and the identified documents, was found to comply with the following standards:

IEC 60079-0 : 2007-10
Edition: 5
Explosive atmospheres - Part 0:Equipment - General requirements
IEC 60079-1 : 2007-04
Edition: 6
Explosive atmospheres - Part 1: Equipment protection by flameproof enclosures "d"
IEC 60079-11 : 2006
Edition: 5
Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
IEC 60079-2 : 2007-02
Edition: 5
Explosive Atmospheres - Part 2 Equipment protection by pressurized enclosure "p"
IEC 61241-11 : 2005
Edition: 1
Electrical apparatus for use in the presence of combustible dusts - Part 11: Protection by intrinsic safety 'iD'
This Certificate does not indicate compliance with electrical safety and performance requirements other than those expressly included in the Standards listed above.

TEST & ASSESSMENT REPORTS:A sample(s) of the equipment listed has successfully met the examination and test requirements as recorded in

Test Report:


Quality Assessment Report:



IECEx Certificate
of Conformity

Certificate No.:IECEx UL 08.0003X
Date of Issue:2014-07-30Issue No.: 6
Page 3 of 4
Equipment and systems covered by this certificate are as follows

Model 6000 is a permanently installed pressurization system intended to provide ”px” purge and pressurization in accordance with IEC 60079-2. Instructions and markings are provided with the control system indicating how to install this device to the electrical enclosure to be purged and pressurized in accordance with IEC 60079-2. The pressurization system enclosure is composed of stainless steel and has an IP66 rating. It is comprised of a cover and body, power supply and main controller, user interface, temperature hub, up to three temperature sensors, vent; optional I.S Termination Board DIN mounted, optional temperature hub and up to three temperature sensors when the temperature hub is provided. The power supply and main controller are housed in a flameproof (”d”) enclosure. The user interface, temperature hub, temperature sensor, and vent are intrinsically safe (”ib”). The control system enclosure contains the IS interface board, which has connection facilities for intrinsically safe circuits. The IS interface board is provided with five connection facilities that have assigned entity parameters.


Please see Annex for additional information.

  • Conduit seals shall be certified in type of explosion in protection flameproof 'd', suitable for the conditions of use and correctly installed to the two pipe nipples extending from the enclosure.
  • Conduit seals shall be installed within 18 in. (450 mm) of the flameproof 'd' enclosure.
  • When the purge control unitl is mounted to an enclosure, the complete unit shall be evaluated to IEC 60079-2:2007.
  • The pressurization system has an operating temperature of 135 °C (T4 temperature class).  This temperature shall be considered when mounted to an enclosure.
  • The device must be installed in accordance with the manufacturer's installation drawing number 116-013UL-12.
  • The 6000-ISB-XX I. S. termination board DIN mounted and the 6000-TEMP-xx I.S. temperature hub must be mounted in an enclosure that is certified for the area of classification.  This device cannot be mounted in the hazardous dust atmosphere unless the enclosure protecting it is certified for the area.  The pressurized enclosure does not account for this type of enclosure because power to this device is required before safe operation.  Separation of I.S. and Non - I.S. wiring is required by local codes.
  • Caution must be used when handling or cleaning the products so there is no static charge buildup.  Do not wipe off 6000-TSEN-xx sensor with dry cloth or use in the presence of high charge generating processes such as ionizers or electrostatic equipment.
  • Intrinsically safe cables extending from the flameproof "d" enclosure must be provided with at least 0.25mm insulation thickness to maintain segregation between intrinsically safe circuits.


IECEx Certificate
of Conformity

Certificate No.:IECEx UL 08.0003X
Date of Issue:2014-07-30Issue No.: 6
Page 4 of 4
 DETAILS OF CERTIFICATE CHANGES (for issues 1 and above):

Issue 1: The revision includes the additon of the pressurization system component kit, Model 6000-XX-XX-XX-CK-XX.

Issue 2: Addition of intrinsically safe "ib", Temperature Module and Temperature Sensor.

Issue 3: The manfacturer has updated the gasket used on the main unit enclosure, two resistors within the intinsically safe circuits, the thickness of the material on the intrinsically safe wiring partition and the addition of an alternate material for intrisically safe wiring partition. Also, updated to IEC 60079-1 Edition 6 and IEC 60079-2 Edition 5.

Issue 4: Addition of dust certification to temperature sensors/Hub and updated IEC 60079-0 edition, alternate components, and IP66 enclosure rating.


Issue 5:  Update to drawings regarding the IS Termination Board DIN Mounted, Model 6000-ISB-XX.

Issue 6:  Removal of the SciCron Coating from the Keypad.


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