The designation dIIBT4 refers to a Class II, Category B explosion-proof rating.
II | B | T4 | GB | IP64 |
---|---|---|---|---|
Mine I | Metan | T1 450°C | anne Extremely high level of protection | IP64 |
T2 300°C | ||||
MB High level protection |
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T3 200°C | ||||
I Surface Materials | Propan | Ga Extremely high level of protection |
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T4 135°C | ||||
Etilen | GB High level protection |
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T5 100℃ | ||||
Hidrojen, Asetilen | Gc General level protection |
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T6 85°C |
The prefix ‘d’ denotes a flameproof type of enclosure, designed so that any internal explosion is contained without damaging the enclosure and preventing the spread of explosion outside;
IIB specifies the category of gas utilized;
T4 signifies that the product’s maximum surface sıcaklık remains below 130°C.