European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH
www.e2s.com
Tel: +44 (0)208 743 8880
Document No. D199-00-201-IS
Issue 4
07-10-21
Sheet 3 of 7
Rating
STExB2:
X05DC012
X05DC024*
X05DC048
Ex db IIC T5 Gb Ta -50°C to +70°C
Ex db IIC T6 Gb Ta -50°C to +55°C
STExB2:
X05AC115
X05AC230
Ex db IIC T4 Gb Ta -50°C to +70°C
Ex db IIC T5 Gb Ta -50°C to +55°C
Ex db IIC T6 Gb Ta -50°C to +40°C
STExB2:
X10DC024*
X10DC048
Ex db IIC T4 Gb Ta -50°C to +70°C
Ex db IIC T5 Gb Ta -50°C to +45°C
STExB2:
X10AC115
X10AC230
Ex db IIC T4 Gb Ta -50°C to +70°C
*SIL Suitable
Installation must be carried out in compliance with the
Canadian Electric Code.
NEC & CEC Class / Division Ratings for US / Canada,
USL CNL
Standards
STExB2X
Xenon
beacons
UL1638A (Ed. 1) 2016
Standard for Visual Signal Appliances for General
Signalling Use
CSA C22.2 No. 205-17 (Ed. 3) 2017
Signal Equipment
Ratings
STExB2:
X05DC012
X05DC024*
X05DC048
Class I Div 2 Group ABCD T5 Ta -50°C to +70°C
Class I Div 2 Group ABCD T6 Ta -50°C to +55°C
STExB2:
X05AC115
X05AC230
Class I Div 2 Group ABCD T4 Ta -50°C to +70°C
Class I Div 2 Group ABCD T5 Ta -50°C to +55°C
Class I Div 2 Group ABCD T6 Ta -50°C to +40°C
STExB2:
X10DC024*
X10DC048
Class I Div 2 Group ABCD T4 Ta -50°C to +70°C
Class I Div 2 Group ABCD T5 Ta -50°C to +45°C
STExB2:
X10AC115
X10AC230
Class I Div 2 Group ABCD T4 Ta -50°C to +70°C
*SIL Suitable
The certification approval has validated continuous use up to
38°C ambient and are for transient use up to 70°C ambient.
Installation must be carried out in compliance with the National
Electric Code / Canadian Electric Code.
4) Zones, Gas Group, Category and
Temperature Classification
The units can be installed in locations with the following
conditions:
Area Classification
Zone 1
Explosive gas air mixture likely to occur in normal
operation.
Zone 2
Explosive gas air mixture not likely to occur in
normal operation, and if it does, it will only exist
for a short time.
Zone 21
(ATEX / IECEx only)
Explosive dust air mixture likely to occur in
normal operation.
Zone 22
(ATEX / IECEx only)
Explosive dust air mixture not likely to occur in
normal operation, and if it does, it will only exist
for a short time.
Gas Groupings
Group IIA
Propane
Group IIB
Ethylene
Group IIC
Hydrogen and Acetylene
Temperature Classification for Gas Applications
T1
450ºC
T2
300ºC
T3
200ºC
(STExB2X15AC & STExB2X21DC up to 70°C
ambient; STExB2X21AC up to 65°C ambient)
T4
135ºC
(STExB2X05AC, STExB2X10DC, STExB2X10AC
& STExB2X15DC up to 70°C ambient;
STExB2X15AC & STExB2X21DC up to 65°C
ambient;
STExB2X21AC up to 55°C ambient)
T5
100ºC
(STExB2X05DC up to 70°C ambient;
STExB2X05AC up to 55°C ambient;
STExB2X10DC up to 45°C ambient)
T6
85ºC
ATEX / IECEx:
(STExB2X05DC up to 55°C ambient,
STExB2X05AC up to 40°C ambient)
NEC / CEC:
Up to 65°C ambient
Dust Groupings
(ATEX / IECEx only)
Group IIIA
Combustible Flyings
Group IIIB
Non-conductive Dust
Group IIIC
Conductive Dust
Maximum Surface Temperature for Dust Applications
(ATEX / IECEx only)
STExB2X05DC
92ºC
STExB2X05AC
110ºC
STExB2X10DC
118ºC
STExB2X10AC
128ºC
STExB2X15DC
127 ºC
STExB2X15AC
131ºC
STExB2X21DC
131ºC
STExB2X21AC
142ºC
Equipment Category
2G / 2D
Equipment Level Protection
Gb, Gc, Db, Dc
Ambient Temperature Range
-50°C to +70°C
IP Rating
IP6X to EN/IEC60079-0
IP66 to EN60529