Product description
Ex p Control Unit
SIEMENS Set
Page 20 of 80
01-37A2-7D0004_SIEMENS_Manual_Exp-Control-Unit_20220216_0_en.docx
Rev. 0
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Variant APEX, type 07-37A2-3211/2726
The enclosure of the Ex p control unit APEX is made of glass
fibre reinforced polyester.
In this enclosure variant, the associated pressure measuring
card as well as purge gas control and purge gas outlet are
integrated.
Ex p control units of this enclosure variant are mounted separately from the
pressurized enclosure.
In terms of explosion protection, the enclosure provides Ex protection for gas.
Item
Designation
Control electronics APEX
Protection enclosure
Pressure sensor module
Ex cable entry
Changeover valve
Purge gas flow adjustment
Operating flow adjustment
Pressure measurement
Pneumatic connections
PE busbar