Siemens SIMATIC RTLS System Manual page 196

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7.9 SIMATIC RTLS PCB OEM PULSE
You will find the current versions of the standards in the currently valid UL HAZ. LOC.
certificates.
UL HAZ. LOC. identifier
NOTICE
Validity only when the devices are labeled
Only devices with the UL HAZ. LOC. mark have the corresponding approval.
The labeling of electrical equipment is as follows:
LISTED E223122
IND.CONT.EQ FOR HAZ.LOC.
CL.I, DIV.2, GP.C,D T4
CL.II, DIV.2, GP.F,G T80 °C
AEx ec IIB T4 Gc, Ex ec IIB T4 Gc X
AEx tc IIIC TXX °C Dc, Ex tc IIIC TXX °C Dc X
0 °C < Tamb. < +50 °C
IPXX
U = 3.3 V DC, 300 mA
n
The equipment also carries the following notes:
XXXYYYZZZ
196
[= serial number, is assigned during production]
System Manual, 04/2019, C79000-G8976-C577-01