Explosion-proof connection boxes
Explosion-proof connection boxes
Explosion-proof boxes are used in hazardous areas where there is a risk of explosion due to vapours, dust and other hazardous media. European boxes are installed in hazardous areas only when it is not possible to place the connection or disconnection of power and/or control cables outside the hazardous area. The boxes are completed with cable glands (glands) according to the customers’ requirements.
Junction boxes are designed for installation in environments with a risk of explosion of flammable gases, vapours, dust and explosives.
- External influences on MЭК 60 364-5-51, cat. A: ENVIRONMENTAL
|
Code |
Description of external influence |
Data |
|
AA |
Ambient temperature |
-60°C – +90°C * |
|
AB |
Atmospheric humidity |
up to +30°C .. 100% до +40°C … 70% |
|
AД5 |
Presence of water |
jets |
|
AE6 |
Presence of foreign solid particles or dust |
heavy dust |
|
AF4 |
Presence of corrosive agents pollutants |
continuous |
|
AG3 |
Mechanical effects |
High rigidity (7J) |
|
AH |
Vibrations |
p.6. – Revision |
|
Title |
Data |
Norma, ed. |
|
|
Explosion-proof fulfilment |
Ex е IIC T* Gb Ex tb IIIC T*°C Db Ex e I Mb (X.X1, X.X2) |
EN 60 079-0 EN 60 079-7 |
|
|
Degree of protection |
min. IP 65 * |
EN 60 529 |
|
|
Group and class* |
II 2G; II 2D I M2 (X.X1, X.X2) |
2014/34/EC |
|
|
Certification |
FTZÚ 07 ATEX 0069 |
FTZÚ NB 1026, CZ |
|
|
Electro-magnetic co-operativeness |
electromagnetic. disturbances non-radiating electromagnetic interference |
For EN 61 439-1 you don’t have to check |
|
|
Material |
X.X0 |
Al – casting |
DIN 1725 (AlSi12) |
|
X.X1 |
polyester reinforced with glass fibres and with graphite |
black paint equivalent to RAL 9011 |
|
|
X.X2 |
Stainless steel. grade sheet 17 240 |
CHSN 42 0002 |
|
|
Surface treatment X.X0 |
hot-drying powder paint |
grey RAL 7001 |
|
|
Flammability of polyester boxes X.X1 |
flame-retardant and self-extinguishing |
UL – S94.V – 0 (also halogen-free) |
|
|
External PE |
16 mm2 (X.X0,2/JB) |
2x M5 screw + washer |
|
