Table 657: 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 10 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 658: CE compliance
Test According to
Immunity EN 60255–26
Emissivity EN 60255–26
Low voltage directive EN 60255–27
Table 659: Mechanical tests
Test
Type test values Reference standards
Vibration response test Class II IEC 60255-21-1
Vibration endurance test Class I IEC 60255-21-1
Shock response test Class I IEC 60255-21-2
Shock withstand test Class I IEC 60255-21-2
Bump test Class I IEC 60255-21-2
Seismic test Class II IEC 60255-21-3
1MRK 505 394-UEN A Section 22
IED hardware
Line differential protection RED650 2.2 IEC 863
Technical manual
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