Siemens HMI suitable for Class I Div 2 in type 4 X enclosure not rated Class I Div 2

[ex protector]

Good Morning all together,
I need to install a HMI from Siemens which is suitable for Class I Division 2 in an enclosure which is only type 4X rated.
Do I need an enclosure which is also suitable for use in Class I Division 2 area or is type 4X sufficient?
Also three control elements factory sealed from C3 controls are mounted.
May thanks for all help and comments.

 

[rbalex]

See 501.105(B) especially Subsection 501.105(B)(1).

 

[MrJLH]

Might want to have a look in API 496.

 

[rbalex]

Might want to have a look in API 496.

I would like to see that myself. I believe you meant NFPA 496. It might be useful but if they read NEC Section 501.105(B) as I recommended it would probably be unnecessary.

 

[MrJLH]

I would like to see that myself. I believe you meant NFPA 496. It might be useful but if they read NEC Section 501.105(B) as I recommended it would probably be unnecessary.

Yes, thanks for the correction. NFPA 496!