Approval plate in explosion-proof version
Figure 8: Approval plates in explosion-proof version (examples)
[1] Ex symbol, CE mark, number of test authority
[2] Ex certificate (number)
Classification:
[3] Electrical gas explosion protection
[4] Electrical dust explosion protection
[5] Non-electrical explosion protection
[6] Threads for line bushings at electrical connection
[7] Not used
Descriptions referring to name plate indications
Type designation
Table 1:
Description of type designation (with the example of SQ 07.2-F10)
-F1007.2SQEx
Type SQ = Part-turn actuators for open-close duty
Type SQR = Part-turn actuators for modulating duty
SQEx
Size
These instructions apply to sizes 05.2, 07.2, 10.2, 12.2, 14.2
07.2
Flange sizeF10
Table 2:
Description of actuator controls type designation (with the example of ACExC 01.2)
01.2ACExC
Type AC = AUMATIC actuator controls
ExC = explosion-proof version
ACExC
Size 01.201.2
Ex marking
Table 3:
Marking for explosion protection (example of /-a3b1)
1b3a–
Not used–
Motor type
a = VDX or SDX: 3-phase AC motor
= VWX or SWX: 1-phase AC motor
a
Protection type of electrical connection
3 = Terminal compartment Ex e increased safety
4 = Terminal compartment Ex d flameproof enclosure
3
Protection type of position transmitter
a = Without intrinsically safe electric circuit
b = Electric circuit Ex i Intrinsic safety (RWG 5020.2Ex)
b
Protection type of fieldbus
1 = Without intrinsically safe Ex ic fieldbus connection
3= Ex ic intrinsically safe fieldbus connection
1
12
SQEx 05.2 – SQEx 14.2/SQREx 05.2 – SQREx 14.2 Control unit: electronic (MWG)
Name plate ACExC 01.2 Non-Intrusive Profibus DP
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