Aluminium Ex-Enclosures

Explosion protected ATEX-aluminum enclosures are conform to the norm 94/9/EB and can be offered as empty enclosures or connection boxes in combination with approved Ex-components. Compliance with the essential health and safety requirements has been assured by conformity with EN 60079-0:2009, EN 60079-7:2007 and EN 60079-31:2009. All types comply with the newest requirements of explosion prevention and protection and fulfill the requirements of explosion protection for equipment group II and category 2G, type of protection increased safety and category 2D with protection by enclosures.

Empty enclosures conform to the EC-type examination certificate IBEXU 10 ATEX 1158 U and can be offered with the following markings:

- Type MBA-empty  II 2 G Exe II C Gb

- Type MBA-empty  II 2 D EX tb III C Db

Operation temperature: -55°C to +135°C

Operation zones: 1, 2, 21 and 22

Connection boxes are available in Exe (increased safety) and Exi (intrinsically safety) versions. Both conform to the EC-type examination certificate IBEXU 10 ATEX 1159 and can be offered with following markings:

Type MBA-Exe:
- II 2 G Exe II CT
- II 2 DExtb III C T 85° CDD

Type MBA-Exi:
- II 2 G Exia II CT6 ..T4Gb

Operation temperature: -55°C/ -20°C < +40°C/+85°C
Operation zones: 1, 2, 21 and 22

Temperature classes: T4 – T6

Rated voltage: up to 1.500 V
Rated current: up to 400 A
Connection cross-section: up to 240 mm²
Protective ground cross-section: up to 120 mm²

All enclosures comply with the protection class IP 66 according to DIN 40050. The lid screws cannot be lost and are made of stainless steel. The fastening grooves are situated outside the seal range.