DELPHI EX Series Asynchronous Three-Phase Electric Motors, it is MOTIVE S.R.L ITALY Explosion Proof Motor with ATEX.

ATEX is the conventional name of the Directive 94/9/EC for the equipment intended for use in potentially explosive atmospheres. MOTIVE DELPHI EX SERIES motors differ from standard DELPHI motors because they are designed to be used, like motive ''Ex'' gearboxes, in the ATEX zones 1, 2, 21 and 22.

MOTIVE DELPHI EX SERIES motors are in fact certified for such zones according to the norms EN 60079-0   EN 60079-7   EN 60079-31 by a notified body:

II 2G Ex eb IIC T4 Gb
II 2D Ex tb IIIC T135°C IP65 Db
Tamb=-20 +40 °C

https://www.motive.it/en/p-6-atex-motors.html