EXPLOSION-PROTECTED BODIES TYPE MBP EX E
MULTI-BOX MBP-Ex e junction boxes made of reinforced polyester meet all the requirements for facilities where explosive concentrations of gases, vapors and dust can occur (zones 1 and 2, as well as 21 and 22).
MBP-Ex e enclosures can be used for temperature classes T5 to T6.
Temperature class 6 means that even if the contact assembly is heated, the maximum total temperature will not exceed 85 ° C either inside or outside this case. Thus, combustible gases, vapors and dust are not flammable. The graphite additives in the polyester material prevent static charge on the surface of the casing with the help of low surface resistance = <10 * 9 Ohm.
If standards allow, explosion-proof junction boxes of increased degree of protection with the marking “e” can be combined with intrinsically safe power circuits marked “i”. The minimum clearance and creepage distance between the contacts of both power circuits can then be 50 mm. Even in this case, no heating of intrinsically safe power circuits occurs.
EXPLOSION-PROTECTED BODIES TYPE MBP-EX I
MULTI-BOX MBP-Ex i junction boxes made of reinforced polyester meet all the requirements for facilities where explosive concentrations of gases, vapors and dust can occur (zones 1 and 2, as well as 21 and 22).
MBP-Ex i enclosures can be used for temperature classes T4 to T5.
The explosion protection of the so-called intrinsically safe enclosures of the “i” type is based on the use of low voltage and connecting the power supply to the enclosure (for example, for data transmission or for telephone communication).
Due to the limitation of the ignition energy, the appearance of a spark is absolutely impossible. Even a temperature rise or heating of our Ex i junction boxes, assembled with the maximum number of serial contacts, cannot lead to an explosion. Graphite additives in the polyester material prevent static charge on the surface of the casing using low surface resistance = <10 * 9 Ohms.
In order to separate the intrinsically safe power circuit when installing Ex i housings, you must select blue or blue marked cable glands and blue contacts.
EXPLOSION-PROTECTED BODIES TYPE MBP-EX EMPTY
MULTI-BOX MBP-Ex empty - empty explosion-proof enclosures made of reinforced polyester meet all the requirements for explosion protection and are designed for facilities where explosive concentrations of gases, vapors and dust can occur (zones 1 and 2, as well as 21 and 22).
Explosion-proof empty enclosures MBP-Ex have certificates confirming the structural safety of the mechanical component "enclosure".
Thus, when registering a new explosion-proof product, it will not be necessary to conduct repeated tests and re-confirm the parameter values associated with the housing properties, which greatly simplifies the process of product approval.
EXPLOSION-PROTECTED BODIES TYPE MBA EX-E
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.
Enclosures of type MBA-Ex e 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, combustible gases, vapors and dust are not flammable.
Using the external ground strap, the 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 increased degree of protection with the marking “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.
EXPLOSION-PROTECTED BODY TYPE MBA EX-I
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, as well as in zone 0, for temperature classes T4 and T6.
Explosion protection of intrinsically safe enclosures of type “i” is based on the use of low voltage and connecting power to the enclosure (for example, for data transfer or for telephone communication).
Due to the ignition energy limit, the occurrence of a spark is absolutely impossible. Even a temperature rise or heating of our Ex i junction boxes, assembled with the maximum number of serial contacts, cannot lead to an explosion.
Using external grounding, enclosures are included in a potential compensation system. This allows you to completely avoid the occurrence of electrostatic charge and associated sparks.
In order to isolate an intrinsically safe power circuit when installing Ex i housings, you must select blue or blue marked cable glands and blue contacts.
EXPLOSION-PROTECTED BODY TYPE MBA EX-EMPTY
Explosion-proof aluminum enclosures 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.
Empty MBA-Ex enclosures have an Ex-Component certificate confirming structural safety for use in hazardous areas.
Thus, when registering a new explosion-proof product, it will not be necessary to conduct repeated tests and re-confirm the parameter values associated with the housing properties, which greatly simplifies the process of product approval.
After installing electronic and electrical components in this enclosure, the entire unit must be retested and certified.