Connecting
5.3 Wiring setups for hazardous area installations
SITRANS LR250 with mA/HART
44 Operating Instructions, 10/2019, A5E32220602-AG
FM/CSA Intrinsically Safe connection drawing 23650653
(
http://www.automation.siemens.com/bilddb/index.aspx?gridview=view2&objkey=G_FI01_XX
_03549&showdetail=true&view=Search)
● For power demands see Curve 1 (General Purpose, Intrinsically Safe, Non-Sparking,
Non-incendive) (Page 257).
● For wiring requirements: follow local regulations.
● Approved dust-tight and water-tight conduit seals are required for outdoor Type 4X / 6,
IP67, IP68 locations.
● Refer to Instructions specific to hazardous area installations (Page 47).
Note
Selecting a suitable PLC input module or power supply requires knowledge about Intrinsic
Safety and the application. It is the responsibility of the installer to ensure that the intrinsically
safe installation complies with both the apparatus approval requirements and the relevant
national code of practice.
5.3.2 Non-sparking wiring
The ATEX certificate listed on the nameplate can be downloaded from our website:
Product page (http://www.siemens.com/LR250
)
Go to: Support > Approvals / Certificates.
● For power demands see Curve 1 (General Purpose, Intrinsically Safe, Non-
Sparking/Energy Limited, Non-incendive) (Page 257).
● For wiring requirements follow local regulations.
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