Explosion-proof junction boxes type MVA made of aluminum, meet all the requirements of the standards and are suitable for use in hazardous areas 1 and 2, as well as 21 and 22.
MBA-Ex e enclosures can be used for temperature classes T4 and T6.
Temperature class 6 means that even if the contact assembly is heated, the maximum total temperature will not exceed 80 ° C either inside or outside this case.
Thus, flammable gases, vapors and dust are not flammable.
Using an external ground strip, enclosures are included in the potential compensation system.
This allows you to completely avoid the occurrence of electrostatic charge and associated sparks.
If standards permit, explosion-proof junction boxes of enhanced degree of protection marked “e” can be combined with intrinsically safe circuits marked “i”.
The minimum clearance and creepage distance between the contacts of both power circuits should then be at least 50 mm. In this case, there is no heating of intrinsically safe power circuits.
ARTNR | Tип | Длина (мм) | Ширина (мм) | Высота (мм) |
3121100200 | MBA-Ex e 606030 | 58 | 64 | 34 |
3121100400 | MBA-Ex e 906030 | 98 | 64 | 35 |
3121100600 | MBA-Ex e 156030 | 150 | 64 | 34 |
3121100900 | MBA-Ex e 708055 | 75 | 80 | 57 |
3121101100 | MBA-Ex e 128055 | 125 | 80 | 57 |
3121101300 | MBA-Ex e 178055 | 175 | 80 | 57 |
3121101400 | MBA-Ex e 258055 | 250 | 80 | 54 |
3121105500 | MBA Ex-e 101080 | 100 | 100 | 80 |
3121106500 | MBA Ex-e 161080 | 160 | 100 | 80 |
3121106600 | MBA Ex-e 201080 | 200 | 100 | 80 |
3121101600 | MBA-Ex e 121265 | 122 | 120 | 65 |
3121101800 | MBA-Ex e 121280 | 122 | 120 | 80 |
3121101900 | MBA-Ex e 121290 | 122 | 120 | 90 |
3121102000 | MBA-Ex e 221265 | 220 | 120 | 65 |
3121102200 | MBA-Ex e 221280 | 220 | 120 | 80 |
3121102300 | MBA-Ex e 221290 | 220 | 120 | 90 |
3121102400 | MBA-Ex e 361280 | 360 | 122 | 80 |
3121104500 | MBA Ex-e 141490 | 140 | 140 | 90 |
3121107500 | MBA Ex-e 181490 | 180 | 140 | 90 |
3121108500 | MBA Ex-e 201490 | 200 | 140 | 90 |
3121102500 | MBA-Ex e 161690 | 160 | 160 | 90 |
3121104000 | MBA-Ex e 261665 | 260 | 160 | 65 |
3121102600 | MBA-Ex e 261690 | 260 | 160 | 90 |
3121102800 | MBA-Ex e 361690 | 360 | 160 | 90 |
3121029000 | MBA-Ex e 561690 | 560 | 160 | 90 |
3121103000 | MBA-Ex e 202311 | 200 | 230 | 110 |
3121103100 | MBA-Ex e 282311 | 280 | 230 | 110 |
3121103202 | MBA-Ex e 332311 | 330 | 230 | 110 |
3121103300 | MBA-Ex e 332318 | 330 | 230 | 180 |
3121103400 | MBA-Ex e 402311 | 400 | 230 | 110 |
3121103700 | MBA-Ex e 602311 | 600 | 230 | 110 |
3121103500 | MBA-Ex e 403111 | 400 | 310 | 110 |
3121103600 | MBA-Ex e 403118 | 400 | 310 | 180 |
3121103800 | MBA-Ex e 603111 | 600 | 310 | 110 |
3121103900 | MBA-Ex e 603118 | 600 | 310 | 180 |