EExdIIBT6 IP66

The code explains the equipment groups, categories, zones, protection levels and atmospheres in which a given device may safely be used, as well as type(s) of protection that device provides.

eexdiibt6-ip66

“EEXDIIBT6” refers to a hazardous location classification.

Hazardous Location Classification:

EEX: This indicates an explosion-proof environment.

D: The equipment is suitable for use in dust-laden atmospheres.

II: It falls under Group II, which includes equipment used in surface industries (not mining).

B: This specifies the explosive gas group, which includes hydrogen and acetylene.

T6: The temperature class is T6, meaning the equipment can handle a maximum surface temperature of 85°C (185°F).

An IP66 rating indicates that an enclosure is dust-tight and protected against powerful jets of water. Specifically, it means the following:

• Solids Protection (First Digit): The enclosure is dust-tight, preventing any dust from entering after rigorous testing.
• Liquid Protection (Second Digit): It can withstand powerful water jets from any direction without harm.