Shenhai Explosion-Proof
IIIB and IIIC both serve as classifications for explosion-proof electrical equipment in dusty settings, with IIIC ranking above IIIB.
| III | C | T 135℃ | Db | IP65 |
|---|---|---|---|---|
| III Surface dust | T1 450℃ | Ma | IP65 | |
| T2 300℃ | Mb | |||
| T3 200℃ | ||||
| A Flammable flying flocs | Da | |||
| T4 135℃ | ||||
| Db | ||||
| B Non conductive dust | T2 100℃ | Dc | ||
| A Conductive dust | T6 85℃ |
In environments categorized as IIIA, IIIB, or IIIC, IIIC locations pose the greatest risk. IIIC explosion-proof servo motors are appropriate for use in IIIB dust environments, whereas IIIB motors are not intended for use in gaseous environments.
All explosion-proof servo motors are classified as IIIC, making them suitable for a range of dusty conditions.