What type of connector is required for flexible cords used in Class II, Division 2 locations?

In Class II, Division 2 locations, which involve environments where combustible dust is present but not in sufficient quantities to create an explosive atmosphere under normal operating conditions, it is crucial to use connectors that provide an adequate level of protection against dust ingress. A listed dusttight cord connector is specifically designed to create a seal that prevents dust from entering the connector, thus minimizing the risk of ignition sources that could be ignited by the presence of dust.

These connectors have been tested and certified for use in environments where dust accumulation could lead to hazardous situations. They ensure that the electrical connections are safe and reliable in the potentially hazardous conditions found in Class II, Division 2 areas.

This requirement for listed dusttight cord connectors emphasizes the importance of adhering to safety regulations and standards in hazardous locations to prevent ignition hazards associated with combustible dust. Using connectors not designed for dusttight applications could expose the equipment to dust-related failures, which could lead to increased risks of fires or explosions.