Table 28. Environmental conditions
Description Value
Operating temperature range -25°C to +55°C (continuous)
Short-time service temperature range -40°C to +70°C (<16h)
Note: Degradation in MTBF and HMI performance outside the
temperature range of -25°C to +55°C
Relative humidity <93%, non-condensing
Atmospheric pressure 86 kPa to 106 kPa
Altitude up to 2000 m
Transport and storage temperature range -40°C to +85°C
Table 29. Environmental tests
Test Type test value Reference standard
Cold operation test Test Ad for 16 h at -25°C IEC 60068-2-1
Cold storage test Test Ab for 16 h at -40°C IEC 60068-2-1
Dry heat operation test Test Bd for 16 h at +70°C IEC 60068-2-2
Dry heat storage test Test Bb for 16 h at +85°C IEC 60068-2-2
Change of temperature test Test Nb for 5 cycles at -25°C to +70°C IEC 60068-2-14
Damp heat test, steady state Test Ca for 56 days at +40°C and humidity 93% IEC 60068-2-78
Damp heat test, cyclic Test Db for 6 cycles at +25 to +55°C and humidity 93 to 95% (1 cycle
= 24 hours)
IEC 60068-2-30
Table 30. CE compliance
Test
According to
Electromagnetic compatibility (EMC) EN 60255–26
Low voltage (LVD) EN 60255–27
Table 31. Mechanical tests
Test
Type test values Reference standards
Vibration response test Class II: Rack mount
Class I: Flush and wall mount
IEC 60255-21-1
Vibration endurance test Class I: Rack, flush and wall mount IEC 60255-21-1
Shock response test Class I: Rack, flush and wall mount IEC 60255-21-2
Shock withstand test Class I: Rack, flush and wall mount IEC 60255-21-2
Bump test Class I: Rack, flush and wall mount IEC 60255-21-2
Seismic test Class II: Rack mount
Class I: Flush and wall mount
IEC 60255-21-3
Generator protection REG670
1MRK 502 074-BEN M
66 Hitachi Power Grids
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