Explosion-proof enclosures
Our enclosures for the “e” (increased safety) and “t” (protection by enclosure) types of protection can be used for installations and applications in areas at risk of explosion due to gas or dust. Thanks to the Ex “p” pressurized enclosure type of protection, components or devices that are not explosion-proof can also be used safely in potentially explosive areas in Zones 1 and 2.
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Ex “e” / Ex “t” enclosures with EC-Type Examination Certificate and IECEx approval
Our Ex “e” / Ex “t” enclosures are specially designed for use in potentially explosive atmospheres, both in gas and dust-laden environments. These enclosures provide equipment protection through increased safety “e” and protection through housing “t”.
The sturdy and closed enclosures are made of high-quality steel or stainless steel. They are approved by a notified body and have the following certifications:
- EC-Type Examination Certificate Number**: EPS 09 ATEX 1 175 U
- IECEx Certificate of Conformity**: IECEx EPS 12.0018U
These certifications guarantee the suitability of the enclosures for use in areas at risk of gas and dust explosions with the classifications II 2G Ex eb IIA / IIB / IIC and II 2D Ex tb IIIC.
The enclosures can be freely configured up to a size of 2000x2500x1000 mm and are approved for ambient temperatures from -40°C to +80°C.
They comply with the following standards:
- EN 60079-0:2018
- EN 60079-7:2015
- EN 60079-31:2014
- EN 62208:2011
In addition, the enclosures are dust-tight and can be provided with all holes for cable entry on request. Secure wall mounting brackets are integrated as standard.
Technical data
- The article number is HEX e/.
- The enclosures have M5 and M8 internal and external protective conductor connections and an M8 grounding connection.
- The doors are either single or double-skinned, with a center web welded in and the seals seamlessly foamed in. The doors open up to 180° and are equipped with either a rotary bolt or a bar lock.
- The wall-mounted enclosures and terminal boxes are equipped with sealed receptacles for wall mounting brackets.
- The lids are screwed on and also have seamlessly foamed-in seals.
- Floor standing cabinets are equipped with sealed floor mounting receptacles and can be optionally supplied with a mounting plate or mounting rail.
- The material consists of 1.4301 stainless steel, polished on the outside, or optionally made of powder-coated sheet steel.
- Optionally, the doors can be manufactured at the front and rear or with external or internal flange plates. The protection class of the enclosures is IP65.
Ex “p” enclosure with pressurized capsule for use in explosive atmospheres
Our Ex p enclosures are specially designed for device protection by pressurized enclosure “p” and are ideal for use in gas and dust explosion-prone areas, particularly in the petrochemical and offshore industries.
Product description
The sturdy and closed Ex p enclosures offer you maximum safety and reliability. They are characterized by their exceptional stability and dust-tightness. They are designed without dead space and can be fully configured in size according to your requirements. In addition, the enclosures can be processed with cut-outs according to your specifications and further reinforced if required.
They are certified according to the following standards:
- EN 60079-0:2012 + A11:2013
- EN 60079-2:2014
- EN 61439-1:2011
- EN 60529:1991 + A1:2000 + A2:2013
Technical data
- Ex “p” sample
- Protective conductor connections: M8 internal and external
- Frame: double-folded for added stability
- Door design: single or double door, with welded center mullion or lid with seamlessly foamed seal. We also offer a double sealing system upon request.
- Door mechanism: Doors with hinges, opening up to 180°, equipped with a rotary bolt lock
- Interior fittings: Freely designable, including cut-outs according to your specifications
- Material: 1.4301 stainless steel as standard, polished on the outside; optionally also available in alloys 1.4404 or 1.4571
- Optional: Equipped with a viewing window made of laminated safety glass (VSG) with a thickness of 6 mm
- Protection class: IP65 or IP66, depending on your requirements
The best switch cabinets and casings are not produced on an assembly line, but rather designed in close cooperation with our customers. Are you ready to begin? Then contact your personal häwa consultant.
