An explosion-proof filling machine is designed for use in a defined hazardous location where flammable gas, vapor, or combustible dust may create an ignition risk. The required design depends on the area classification, product properties, operating conditions, and jurisdiction. A motor marked for a hazardous area does not by itself establish that a complete filling line is suitable for that area.
Depending on the risk assessment, a system may need appropriately rated motors, control cabinets, sensors, wiring, pumps, grounding and bonding, static control, ventilation or vapor extraction, and safety interlocks. The equipment certificate and nameplate must match the intended location and the relevant gas or dust group and temperature limits. In the EU, equipment and workplace requirements are addressed by separate ATEX directives; U.S. installations follow applicable electrical and fire codes, including OSHA requirements for hazardous locations. See the ATEX equipment directive, the ATEX workplace directive, and OSHA 29 CFR 1910.307.
