Safety Manual
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)
II (2) G (b2)
II (2) D (b2)
Standard designation as per the EN 13463 series of standards for non-electrical devices:
"b1": Ignition source monitoring acc. to EN 13463-6 with IPL 1 for Cat. 2
"b2": Ignition source monitoring acc. to EN 13463-6 with IPL 2 for Cat. 2
Safety equipment acc. to EN 13463-6 for Cat. 2G or 2D Dir. 2014/34/EU, Application for ignition pro-
tection, ignition source monitoring of non-electrical ignition dangers "b" acc. to EN 13463-6
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
Safety equipment non-electrical ignition protection
Caution: Redundant use only!