Surface mounted junction box MBP-Ex i Series

waterproofpolyesterwith transparent cover

MULTI-BOX MBP-Ex i junction boxes made of Polyester are conform to all requirements for installation fields where explosive concentrations of gases, steams and dusts can appear (zones 1 and as well as 21 and 22). MBP-Ex i enclosures can be used in the temperature classes T4 up to T5. The explosion protection of so called intrinsically safe enclosures «i» is based upon the low voltage and electricity connected in the enclosure (e.g. data or telephone lines). Thanks to the limit of ignition energy, the occurrence of a spark is absolutely impossible. Even rising the temperature or heating our Ex i junction boxes assembled with the maximum amount of series terminals cannot cause any explosion. The graphite additive in the polyester material prevents static charge of the housing surface by the low surface resistance = <10 (high -9) ohms. In order to make visible an intrinsically safe power circuit when installing Ex i enclosures, once has to choose blue or blue marked cable glands and blue terminals.