17.9 Ingress protection
Table 565: Ingress protection
Description
Value
IED front IP 54
IED rear IP 20
IED sides IP 40
IED top IP 40
IED bottom IP 20
17.10 Environmental conditions and tests
Table 566: Environmental conditions
Description Value
Operating temperature range -25...+55ºC (continuous)
Short-time service temperature range -40...+70ºC (<16h)
Note: Degradation in MTBF and HMI performance
outside the temperature range of -25...+55ºC
Relative humidity
<93%, non-condensing
Atmospheric pressure 12.47...15.37 psi (86...106 kPa)
Altitude up to 6561.66 feet (2000 m)
Transport and storage temperature range -40...+85ºC
Table 567: Environmental tests
Description
Type test value Reference
Cold tests operation
storage
96 h at -25ºC
16 h at -40ºC
96 h at -40ºC
IEC 60068-2-1/ANSI
C37.90-2005 (chapter 4)
Dry heat tests
operation
storage
16 h at +70ºC
96 h at +85ºC
IEC 60068-2-2/ANSI
C37.90-2005 (chapter 4)
Damp heat tests
steady state
cyclic
240 h at +40ºC
humidity 93%
6 cycles at +25 to +55ºC
humidity 93...95%
IEC 60068-2-78
IEC 60068-2-30
Section 17 1MRK 511 287-UUS A
Technical data
650
Technical manual
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