Siemens S7-400PLC Specifikace Strana 25

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General specifications
1.1 Standards, certificates and approvals
S7-400 Automation System Module Data
Reference Manual, Edition 09/2009, A5E00850736-06
25
or cULus Approvals, Hazardous Location for Relay Modules
+$=/2&
CULUS Listed 7RA9 INT. CONT. EQ. FOR HAZ. LOC.
Underwriters Laboratories Inc., complying with
UL 508 (Industrial Control Equipment)
CSA C22.2 No. 142 (Process Control Equipment)
UL 1604 (Hazardous Location)
CSA-213 (Hazardous Location)
APPROVED for Use in
Cl. 1, Div. 2, GP. A, B, C, D T4A
Cl. 1, Zone 2, GP. IIC T4
Cl. 1, Zone 2, AEx nC IIC T4
Read the following information
Note
This product must be installed according to the NEC (National Electric Code) stipulations.
When used in environments according to class I, division 2 (see above), S7-400 must be
mounted in an enclosure that corresponds to at least IP54 according to EN 60529.
You can find information about the use of S7-400 in hazardous areas of zone 2 in a separate
document, which is included in this documentation package.
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