What is ATEX Ex e?
The housing will contain a flame without allowing it to escape to the hazardous atmosphere. Ex e means increased safety referring to the lack of arcs, sparks or hot surfaces. Ex m is encapsulation that prevents the atmosphere reaching any potentially incendive parts.
What is ex ec?
Equipment protection level Gc for zone 2. ABB offers a wide range of increased safety Ex ec (former: non-sparking) motors, both low and high voltage, from 0.25 kW to 75 MW. The motors are certified according to IECEx and ATEX, and comply with many other international and local regulations.
What is Ex d protection?
Ex d – luminaires approved to this standard must be able to safely contain an explosion, and the accompanying pressure that develops. They must prevent any fire or sparks from escaping the enclosure and into the surrounding explosive environments.
What is ex protection?
Intrinsic Safety (Ex i): Explosion is prevented by limiting the energy of the ignition source. A safety barrier is invariably used to limit energy to intrinsically safe field device.
What is a T4 rating?
For example, a rating of T1 means that the maximum temperature of equipment can be up to 450degC while a T4 rating would mean that the maximum surface temperature generated by equipment at room temperature cannot exceed 135degC.
What is an Atex 2G eexd IIB T4?
An ATEX approved electrical product is marked with the following code: II 2G Eexd IIB T4 From the breakdown of the code below it can be seen that the product is flameproof,suitable for use in zone 1 surface applications where gas group B gases may be present and the surface temperature of the product under fault conditions will not exceed 135 ºC.
What is the difference between Exd and IIc?
Ex d indicates flameproof Type of Protection, IIC is the Gas Group, T6 the Temperature Class and Gb the Equipment Protection level. Ex t indicates a dust tight enclosure, IIIC is the Dust Type, Temperature Class is 85deg C and Equipment Protection Level Db for Zone 21. This gallery requires JavaScript to function correctly.
What is the difference between exext and IIIC enclosures?
Ex t indicates a dust tight enclosure, IIIC is the Dust Type, IP67 ingress protection, Temperature Class is 100deg C and Equipment Protection Level Db for Zone 21. This gallery requires JavaScript to function correctly.
What is the difference between IIA IIB IIII and IIIC?
II covers all gas hazards and is shown as IIA, IIB or IIC which relates to the potential gases that may be present. III indicates dust hazards and again is split into IIIA, IIIB and IIIC categories. IIA relates to combustible flyings.