Intrinsically Safe Wiring - Siemens 7ML5431 Operating Instructions Manual

For installation across Zone 0 and Zone 1 boundary:
①
②
③
5.3.1

Intrinsically safe wiring

Device nameplate (ATEX/IECEX/INMETRO/RCM)
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.
The IECEx certificate listed on the nameplate can be viewed on the IECEx website. Go to:
IECEx (http://iecex.iec.ch/)
Click on Certified Equipment then enter the certificate number IECEx SIR 05.0031X.
Device nameplate (FM/CSA)
①
The FM/CSA Instrinsically Safe connection drawing number 23650653 listed on the
nameplate can be downloaded from the Siemens Industry Image Database:
SITRANS LR250 with mA/HART
Operating Instructions, 10/2019, A5E32220602-AG
Zone 1
Threaded nut acts as partition wall
Material: Stainless steel, aluminum, and potting compound (hardness of at least 88
SHORE D; compressive strength of at least 14,000 psi)
Zone 0
Connection drawing number
5.3 Wiring setups for hazardous area installations
Connecting
43