Siemens SIMATIC S7-300 Información Del Producto página 14

Supplement: UKEX approval
According to EN IEC 60079-7 +A1 (Explosive atmospheres - Part 7: Equipment protection by increased safety "e"), EN IEC
60079-15 (Explosive atmospheres - Part 15: Equipment protection by type of protection "n") und EN IEC 60079-0 (Explosive
atmospheres - Part 0: Equipment - General requirements).
II 3 G Ex ec nC IIC Tx Gc
DEKRA 21UKEX0011 X
Special conditions in explosive atmospheres
• The equipment shall only be used in an area of not more than pollution degree 2, as defined in EN 60664-1.
• The equipment must be installed in a suitable enclosure providing a degree of protection not less than IP54 in accordance
with EN IEC 60079-0 and EN 60529. The ambient conditions must be taken into consideration for use.
• Provisions shall be made to prevent the nominal voltage from being exceeded by transient disturbances of more than
119 V.
The following applies to SM 326; DI 8 x NAMUR:
According to EN IEC 60079-7 +A1 (Explosive atmospheres - Part 7: Equipment protection by increased safety "e"), EN IEC
60079-11 (Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i") und EN IEC 60079-0 (Explosive
atmospheres - Part 0: Equipment - General requirements).
II 3 G (2) G Ex ec [ib Gb] IIC T4 Gc
II 3 G (2) D Ex ec [ib IIIC Db] IIC T4 Gc
Special conditions apply to SM 326; DI 8 x NAMUR in hazardous areas:
• During installation the connection box shall be used, or by using a separation wall a minimum distance of 50 mm shall be
guaranteed between the intrinsically safe and non-intrinsically safe circuits, or the connection parts shall be additionally
insulated (e.g. by heat-shrinkable tubing).
When installed in an area requiring EPL Ge, the following additionally apply:
• The equipment shall only be used in an area of not more than pollution degree 2, as defined in EN 60664-1.
• The equipment shall be installed in a suitable enclosure that provides a degree of protection not less than IP54 in
accordance with IEC 60079-0 and EN 60529. The ambient conditions must be taken into consideration for use.
• Provisions shall be made to prevent the nominal voltage from being exceeded by transient disturbances of more than
119 V.
Supplement: CCCEx approval
In accordance with GB/T 3836.3 (Explosive atmospheres - Part 3: Equipment protection by increased safety "e"), GB/T 3836.8
(Explosive atmospheres - Part 8: Equipment protection by type of protection "n") und GB/T 3836.1 (Explosive atmospheres -
Part 1: Equipment - General requirements).
Ex ec nC IIC Tx Gc
Special conditions in hazardous areas:
• The equipment shall only be used in an area of not more than pollution degree 2, as defined in GB/T 16935.1.
• The equipment shall be installed in a suitable enclosure providing a degree of protection not less than IP54 in accordance
with GB/T 3836.1 and GB/T 4208. The ambient conditions must be taken into consideration for use.
• Provisions shall be made to prevent the nominal voltage from being exceeded by transient disturbances of more than
119 V.
The following applies to SM 326; DI 8 x NAMUR:
In accordance with GB/T 3836.3 (Explosive atmospheres - Part 3: Equipment protection by increased safety "e"), GB/T 3836.4
(Explosive atmospheres - Part 4: Equipment protection by intrinsic safety "i") and GB/T 3836.1 (Explosive atmospheres - Part
1: Equipment - General requirements).
Ex ec [ib Gb] IIC T4 Gc
Ex ec [ib IIIC Db] IIC T4 Gc
14
Product information on fail-safe signal modules
A5E50592408-AA, 11/2022