Determination of explosion protection rating
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Below is the SaiMeng Terminator™ ZT thermostat. I would like to ask what each letter in it represents. I didn’t copy it wrong. II 2 G Ex db eb IIC T5-T6 FM10ATEX0058X II 2 D Ex tb IIIC T100°C-T85°C
II 2 G Ex db eb IIC T5-T6 FM10ATEX0058X II 2 D Ex tb IIIC T100°C-T85°C: II denotes non-mining equipment; 2 indicates a high level of protection. G is used for environments with gases or vapor, while D is suitable for dust-filled environments. Ex is the explosion-proof marking. db refers to an explosion-proof enclosure, eb denotes enhanced safety features, and tb represents surgical-grade protection. IIC corresponds to explosive gases, while IIIC refers to explosive dust environments. The temperature ranges are T5-T6 and T100-T185°C; however, it is usually sufficient to specify only the highest temperature. For more detailed information, one should consult relevant documentation – I’m not entirely familiar with all the precise meanings; I’ve just memorized the types of instruments that are commonly used in design work. . .
This DB explosion-proof enclosure: EB is the increased safety type, and TB is the surgical protection type. I’ve never seen letters added after terms like explosion-proof/increased safety before Only intrinsically safe has ia /ib