Siemens Simatic S7-400 - Manual (Page 36)

General Technical Specifications
1-8
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
FM Approval
Factory Mutual Approval Standard Class Number 3611, Class I, Division 2, Group
A, B, C, D.
Temperature class: T4 at 60 ° C ambient temperature
Exception:
The following applies to the power supply modules in Table 1-3:
• Temperature class T3C at 60 ° C ambient temperature
• Temperature class T4 at 40 ° C ambient temperature
In the case of the modules in Table 1-3 the T4 temperature class is achieved for
the whole system if the ambient temperature does not exceed 40
° C during
operation. There are also certain additional requirements that you can comply
with by installing the system in cabinets.
Table 1-3 Power Supply Modules
Name Order number
PS 407 4 A Power Supply Module 6ES7 407-0DA00-0AA0
PS 407 10 A Power Supply Module 6ES7 407-0KA00-0AA0
PS 407 20 A Power Supply Module 6ES7 407-0RA00-0AA0
PS 405 4 A Power Supply Module 6ES7 405-0DA00-0AA0
PS 405 10 A Power Supply Module 6ES7 405-0KA00-0AA0
PS 405 20 A Power Supply Module 6ES7 405-0RA00-0AA0
!
Warning
Personal injury or property damage can result.
In hazardous areas, personal injury or property damage can result if you create or
break an electrical circuit during operation of an S7-400/M7-400 (for example, by
means of plug-in connections, fuses, switches).
Do not create or break live electric circuits unless you are certain there is no
danger of explosion.
If you use S7-400 under FM conditions, it has to be mounted in a housing, which
at least corresponds to IP54 in accordance with EN 60529.