Exp Enclosures | Pressurized Enclosures Ex pz Class I Div 2 Zone 2 Zone 22 ATEX Hazardous Areas

Exp Enclosures Pressurized Enclosures

Exp Enclosures

Pressurized Enclosures

Ex pz Class I Div 2 Zone 2 Zone 22 ATEX Hazardous Areas

IECEx – ATEX Purge & Pressurized Enclosures Ex pz Zone 2, (22) IECEx, Category 3 GD ATEX

Exp pressurized enclosures hold IECEx & ATEX Certificates to IEC/EN 60079-0 & 60079-2, Hazardous Area Zone 2, Ex pz for populated Expo Purge & Pressurized Enclosures type PE3.

The Exp enclosures are suitable for applications where there is a potential for hazardous areas with dust as well as gas, ATEX certification can include for Zone 2 (Gas) & Zone 22 (Dust). ATEX

The Zone 22 hazardous area certification is to IEC/EN 61241-4 standard Ex p.

The construction and power dissipation of the internal components of the Exp enclosures are critical to ensuring effective purging, compliance with temperature rating and safe operations. All internal components and details must be reviewed with the consultation of Thorne & Derrick to determine compliance with the IECEx / ATEX “Schedule of Limitations” required for the certificate to apply.

EXP Enclosures

Features & Benefits

IECEx – ATEX Certified Purge & Pressurized Enclosure, Type PE3
IECEx – ATEX Certified Purge & Pressurization System
IECEx &/or ATEX Zone 2 (22) Hazardous Area Certification to IEC/EN 60079-0 & -2 Ex pz
Where there are Gas & Dust Hazards PE3 can also be certified for both Hazardous Area Zone 2 & Zone 22
No need for a Certified/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

Pressurized Enclosures

Model Number PE3

Specification

Sizes: Purpose built and designed for the application
Maximum Size: 2.1m H x 1.8m W x 1.0m D Approx: 82″ H x 70″ W x 39″. Larger sizes are available
Material 1:1.5mm to 3mm dependent on the size of the PE Exp enclosure
316L Stainless Steel Enclosure – Finish: NROB
Mild (Carbon) Steel Enclosure – Finish: Powder Coated
RAL7035 (Light Grey)
Doors: Front, Back, Side, Top, Bottom or Double Doors
Door Fasteners: Tool Operated ¹/4 turn Stainless Steel (does not require a power disconnect door switch) IEC / EN 60079-2
Hinges: Stainless Steel
Seals: Elastomer seals fully compliant with IEC / EN 60079-0
Windows: Polycarbonate Weather Strip or Laminated Glass Weather Strip or Clamped. Maximum size up to 1m² (Approx: 10.76ft²)
Control Devices & Actuators: Lamps, Push Buttons, etc Certified
Sub-panel (Chassis): Rear, Slides, Top, Bottom or Door
19″ Rack: Fixed or Swing Frame
Mounting Bosses
Lifting Eyes
Gland Plates
Mobile PE3: Anti-Static Wheels
Wall Lugs
Free Standing
Plinths
Keyboards, etc

Exp Enclosures – Pressurized Enclosures Certifications

Certification of PE3 Exp Enclosure

Should you require any technical support to enable the design, specification or customisation of Exp Enclosures for explosive gas (Zone 2) or explosive dust (Zone 22) explosive atmospheres please contact our Hazardous Area Sales Team.

IECEx: Certificate of Conformity: IECEx ITS 11.0042X ATEX: Certificate of Conformity: ITS 11 ATEX17381X	Ex pz IIC T4 Gc [Zone2] Hazardous Area Ex p IIIC T135°C Db [Zone 22] Hazardous Area
Ambient Temperature	-20°C, -4°F to 55°C, 131°F
Pressure & Leakage	Test result with each PE3 enclosures To IEC/EN 60079-2
Over Pressure Test	18mbarg (7″WC) To IEC/EN 60079-2
Purge Time	5 Volume Changes
Purge Test	Alternatively a Purge Test can be completed to prove effective purging & reduce the Purge Time
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 PE3, Zone 2 (22) Hazardous Area
Instruments & Electrical	Most apparatus installed within the PE3 are normally acceptable
Ex Apparatus	Permitted subject to internal temperature
Effective Purging	Boxed apparatus will require ventilation holes
Power & Signals Inputs	Must be disconnected by the MiniPurge system
Temperature Class	T4, T3, T2 dependent on internal and external apparatus
Batteries	Check with T&D. Small memory type batteries may be able to be installed
Internal Release Of Flammable Gas	Not normally permitted, please consult. Solutions are available
Verification	Can be completed at the client’s or T&D premises. T&D will supply the verification document and certificate label(s)