Class 1 Div 2, Flexible Conduit, and Low Voltage.

20 Oct.,2022

 

explosion proof flexible conduit

Thank you for the confirmation. Everything you mentioned is pretty well on point with what I understood the code to say. The seals part I did not look into. Here is the section that explains their Class 1 Div 2 compliance:



North America ? Class 1 Division 2

The detector has been independently certified as compliant for Class 1 Division 2 operation to the relevant US (ANSI/NFPA 70 National Electrical Code, Article 500) and Canadian (CSA 22.1 Canadian Electrical Code, Annex J) standards under the following restrictions.

Rating

Class 1, Division 2,
Groups A B C & D T4
-4?F ? T

AMB

? +131?F

Conditions of Use

WARNING : Exposure to some chemicals may degrade the sealing properties of materials used in the following devices.

Relays/Relais RLY1, RLY2, RLY3 and RLY4

WARNING : Explosion hazard. Do not disconnect while the circuit is live or unless the area is known to be free of ignitable concentrations
WARNING : Substitution of the following components may impair suitability for Division 2 :

Relays/Relais RLY1, RLY2, RLY3 and RLY4

Terminal Blocks/Blocs de jonction SKT1 and SKT2
Fuse/ Fusible F1
Battery Holder B1
Jumper LNK2
SD Card Socket/Carte SD Socket SKT5


So you think I need seals at the device side only then? All of the devices are of the same type as listed above, but the area is not required to be explosion proof as I understand it (isn't that class 1 div 1?). What would determine for certain that seals are needed?

Thanks again.