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Data sheet: Dust Protected Enclosures

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Data sheet: Dust Protected Enclosures

Certification Overview

Expo holds IECEx & ATEX Certificates to IECIEN 60079-0 & IECIEN 60079-31 and EN 61241-1, Zone 21, Ex tb for the populated Expo Enclosure type PE2EIPE3E. The certificate includes for installation of your instrumentation and I or electrical apparatus without further reference to the certification body when it complies with the Expo “Schedule of Limitations”.

Expo Dust protection (Ex tb- Ex tc) enclosures are designed to prevent the entry of flammable dust into the enclosure. They are custom designed and engineered for specific application or project.

IECEx &/or ATEX Zone 21 & 22 Certification with “YOUR EQUIPMENT”

IECEx – ATEX Certified, Expo Dust & Protected by Enclosure,

Ex tb (Type PE2E) or Ex tc (Type PE3E)


YOUR Equipment within agreed limits


Expo Verify the installation is compliant with the Sol

IECEx &/or ATEX Zone 21 & 22

Certification to IEC/EN 60079-0 & IEC/EN

60079-31 or EN 61241-1, IP6X, Ex tb/Ex tc

Advantages of Dust Protected Enclosures

  • No need for a Certified I Notified Body as the Certificate has been issued to Expo + Accept orders for your apparatus in hazardous locations and increase your market share
  • Ease of Certification for the OEM and the User
  • Reduced Certification cost
  • Reduced time to market
  • After review, equipment not complying with the Sol may still be certified with a variation to the Expo Certificate
  • Passive operation, no external electric control system or air supply required

Contents of the Enclosure

Ex e terminals, Ex e isolators and other Ex e component certified items can be installed when used with the PE3E Increased Safety Enclosures.

The construction   and power   dissipation  of the internal

components   are critical to ensuring effective compliance with Temperature Rating and Safe Operation. Therefore all internal components and details of the enclosure must be reviewed by Expo Technologies to determine compliance. Thereafter the final installation is to be verified by Expo.

Certification of the PE2E/PE3E Enclosure for “dust protection

Ex tb IIIC T135°C Db

IECEx: Certificate of Conformity No: IECEx ITS 08.0044X ATEX: Certificate of Conformity No: ITS10ATEX16944X

Ex tc IIIC T135°C De

IECEx: Certificate of Conformity No: IECEx ITS11.0042X ATEX: Certificate of Conformity No: ITS11ATEX17381X

Ambient Temp

-20°C, -4°F to 55°C, 131°F

IEC/EN 60529 &: IEC/EN 60079-0


Compliance to General Conditions IEC/EN 60079-0

Includes thermal conditioning of Non metallic items, seals, etc resistance to light testing impact testing 4 -7 Joules

Schedule of Limitations

Request Sol,Zone 21 (22)

Special Conditions Safe Use

Before closing the door dust of must be removed from the inside of the enclosure and the power can be applied

Instruments & electrical

Most apparatus installed within the enclosure are normally acceptable

Ex Apparatus

Permitted subject to internal temperature

Power & Signals

Must be capable of being manually disconnected

Temperature rating

T135,T200,T300dependenton internal and external apparatus


Check with Expo. Small memory type batteries may be able to be installed


Can be completed at the client or Expo premises. Expo will supply the verification document and certificate label(s)

Model Number: PE2E or PE3E Options

  • Sizes ­– Purpose built and designed for the applicatio
  • Maximum Size – 2.1m H x 1.8m W x 1.0m D Approx: 82″ H x 70″ W x 39″ D
    Larger sizes are available, please ask!
  • Material – 1.5mm to 3mm dependent on the size of the enclosure
  • 316L Stainless Steel- Finish – NROB
  • Doors – Front, Back, Side, Top, Bottom or Double doors turn Stainless Steel
  • Hinges – Stainless Steel
  • Seals ­– Silicon seals fully compliant with IEC/EN 60079-0
  • Windows – Laminated Glass Clamped Maximum size up to 1m2 (Approx: 10.76ff)
  • Control Devices & Actuators – Certified: Push Buttons, Lamps, etc
  • Sub-panel (Chassis) – Rear, Slides, Top, Bottom or Door
  • 19″Rack – Fixed or Swing Frame
  • Mount Bosses
  • Lifting Eye’s
  • Gland Plates
  • Mobile PE2E/PE3E:   Anti-Static Wheels
  • Wall Lugs
  • Free Standing
  • Plinths

If you have an application for Hazardous Location, IECEx- ATEX – NEC please feel free to contact us.