Siemens SIMATIC ET 200SP HA Instrucciones De Servicio Resumidas página 11

EAC Ex 2Ex e [ia Ga] IIC T4 Gc X
[Ex ia Da] IIIC X
Note
You may use the I/O module with device category 3G in the hazardous area of zone 2.
You may connect sensors of device categories 1G, 2G and 3G for zones 0, 1, and 2 as
well as device categories 1D, 2D and 3D for zones 20, 21 and 22 to the I/O module
inputs.
Installation
DANGER
Explosion hazard
Under some circumstances, sparks capable of ignition or unacceptable surface
temperatures can occur during installation. Never carry out mounting under
explosive conditions!
When mounting, adhere to the installation and setup regulations according to DIN EN
IEC 60079-14 and the country-specific regulations.
DANGER
No standard BaseUnits to Ex modules
No standard BaseUnits may be connected to the BaseUnits of the Ex modules.
Wiring of the BaseUnit
• When laying the cables and wiring, adhere to the installation and setup
regulations according to DIN EN IEC 60079-14 as well as the country-specific
regulations.
• Ensure intrinsically safe and non-intrinsically safe cables are completely separate
during wiring. They must be routed in separate cable ducts and must maintain a
minimum distance of 50 mm from "non-intrinsically safe cables".
• The shield connection is separated from the intrinsically safe circuits and is
connected to the local potential equalization system. Any significant loop current
through the shield should be avoided because the shield is not intrinsically safe
and the "increased safety" explosion protection type is not present.
Ex-AI 2xI 2-wire HART
A5E50377471-AB, 03/2023
Ex-AI 2xI 2-wire HART
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