What do T4 and T6 mean in explosion-proof lamps?
December 12, 2025
What do T4 and T6 mean in explosion-proof lamps?
- T4 explosion-proof lamps have a maximum permissible surface temperature of ≤135°C, suitable for locations where acetaldehyde (140°C) and gasoline (280°C) are produced or stored.
- T6 explosion-proof lamps have a maximum permissible surface temperature of ≤85°C, suitable for workshops handling hazardous chemicals with lower ignition points, such as carbon disulfide (95°C), and dusty environments.
- T6 explosion-proof lamps offer higher safety, wider applicability, and are more expensive than other grades. If you're unsure which grade to choose, feel free to contact me.