ABB Flameproof Motor IE2 & IE3

Overview

To ensure equipment can be safely used in potentially explosive atmospheres, the explosive atmospheres where the equipment is installed must be known. The temperature class of equipment must be compared with the spontaneous ignition of the equipment of the gas mixtures concerned,and in specific cases the gas group must be known (e.g., flameproof protection). The motor enclosure is designed in such a way that no internal explosion can be transmitted to the explosive atmosphere surrounding the motor. The enclosure must withstand, without damage, any pressure levels caused by an internal explosion. The shape, length, and gap of joints of part assemblies, at shaft openings, cable entries, etc., shall be designed to allow for throttling and cooling of hot gases escaping outside. The standards emphasize the impact of an explosive atmosphere (for instance, explosion pressure) over constructional requirements of such apparatus.

Features

Motors suitable for high ambient temperature 45ºC.
Prevents explosion inside the enclosure from propagating through gaps to the ambient.
Withstands the explosion pressure created inside the enclosures.
Benefits when dealing with special operating modes such as heavy starts and special applications.
All surface temperatures are selected to comply with the temperature class.
Suitability for use in temperature classes T1 to T4.
Can be used both in Zone 1 and Zone 2.