Distribution boxes type ExP-SR are intended for connection and branching of incoming and outgoing cables and wires with the use of certified cable glands and terminals. The boxes enable the supply of power, control and signaling signals to devices operating in gas and / or dust hazardous areas and outside the areas. Distribution boxes were made in accordance with the principles of good engineering practice in the field of explosion safety, taking into account the requirements of the following standards: EN IEC 60079-0, EN 60079-7, EN 60079-11, EN 60079-31 and EN 61439 -1.