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A-34
IM 39J06B40-01EN 14th Edition: May 30, 2022
A4.7. ATEX Type
“
n
”
ATEX Type “n” is a construction that enhances safety not to cause a spark, an arc or
high surface temperatures in a normal operation in CENELEC standard and IEC
standard and also to avoid causing a spark, an arc or high surface temperatures under
defined conditions such as an overload.

Compliance
ATEX Type “n” standards complied by DTSXL System are the following.
[Explosion-proof specifications]
II 3 G Ex nA ic [op is Gc] IIC T4 Gc X
[Complied standards]
EN 60079-0:2018
EN 60079-11:2012
EN 60079-15:2010
EN 60079-28:2015
- Explosive atmospheres-Part15: Equipment protection by type of protection “n”
The DTSXL System is indoor use. It can be installed in a hazardous location of Zone 2
after accommodating them in a keyed cabinet (*1) of protection rating IP54 or higher. It
is possible to directly connect a node unit installed in a non-hazardous location and a
Type “n” approved field device installed in a hazardous location of Zone 2.
*1: Use the DTSXL System accommodated in the cabinet on condition that the ambient temperature of the DTSXL
System meets its specifications, considering temperature rise in the cabinet.
SEE ALSO
Refer to IM 39J06B40-10EN for the installation and the precaution for Type “n” compliant devices.
CAUTION
Modification or parts replacement of this product is prohibited. If it is carried out by other
than authorized engineer of Yokogawa Electric Corporation, it becomes an invalid type
of protection.