Temeparture Class VS AIT 

Temperature Class and Auto-Ignition Temperature!
Electrical equipment generates heat when in use and can therefore ignite explosive atmospheres. As a result, when an electrical device is installed in a hazardous environment where explosive gases are present, the device's T-class (the maximum surface temperature that the device may reach in service) must be considered.
Consider, too, the auto-ignition temperature of the gasses present where the device is to be installed: the temperature at which a mixture of air and that gas will spontaneously ignite without any additional source of ignition.
In this short #animation, with some practical examples, we will explain the definitions of Temperature Class (T-class), auto-ignition temperature of explosive gases and how temperature class plays a significant role in the safe installation of electrical devices.
Hazcon Inc.
www.hazcon.com