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WhatDoestheExplosion-ProofSignExdIIBT4GbMean|ExplanationOfTerms

Explanation Of Terms

What Does the Explosion-Proof Sign Exd IIB T4 Gb Mean

Ex: Signifies equipment designed for explosion-proof applications;

explosion proof level-1
d: Specifies that the equipment is of the flameproof explosion-proof type;

II: Classifies the device as belonging to Class II for explosion-proof electrical equipment;

B: Classifies the gas level as IIB;

T4: Indicates a temperature group of T4, signifying that the maximum surface temperature of the equipment does not exceed 135°C;

Gb: Represents the protection grade of the equipment.

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