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Idiomas disponibles
Safety Manual
3. Safety identification marking (SIL and IPL identification marking)
exTHERM-AT 605055
3.1 Types, type combinations and their SIL classifications
List of types, type combinations and their SIL classifications:
Type designation
0002
0020
0070
0202
0220
0270
2020
2070
7070
When used as a protection device, the device has an additional identification; this is defined by the device to
be monitored. Example of additional identification marking:
Safety identification marking by ignition protection type in line with the EN 50495 and EN 13463-6 series of
standards.
3.2 Product group 605055, HFT = 0, IPL 1:
II (2) G [Ex e]
II (2) G [Ex d]
II (2) D [Ex tb]
e: Temperature limit for a piece of operating equipment with ignition protection type,
Advanced safety Ex e
d: Temperature monitoring of a bearing passage on an enclosure
with the ignition protection type, pressure resistant enclosure Ex d
tb: Temperature monitoring of a piece of electrical operating equipment
with the ignition protection type;
Equipment dust explosion protection through enclosure Ex
Safety equipment acc. to EN 50495 for Cat. 2G or 2D Dir. 2014/34/EU,
Application for ignition protection type
Pressure resistant enclosure "d" acc. to EN 60079-1 and advanced safety "e" acc.
to EN 60079-7(gas),
Protection through enclosure "t" acc. to EN 60079-31, equipment protection level "tb" (dust)
Description
TW
STW
STB
TW/TW
TW/STW
STW/STB
STW/STW
STW/STB
STB/STB
Safety equipment electrical ignition protection, example of standard designation
acc. to EN 50495, depending on the respective ignition protection of the EUC,
with SIL 2 and HFT 0
Category (Cat. 2),
through redundant use, even with SIL 2 and HFT 1 Category 1
SIL classification
No SIL
SIL 2, HFT = 0, architecture 1001
SIL 2, HFT = 0, architecture 1001
No SIL
SIL 2, HFT = 0, architecture 1001
SIL 2, HFT = 0, architecture 1001
SIL 2, HFT = 1, architecture 1001
SIL 2, HFT = 1, architecture 1002
SIL 2, HFT = 1, architecture 1002
IPL classification
No IPL
IPL 1
IPL 1
No IPL
IPL 1
IPL 1
IPL 2
IPL 2
IPL 2
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