15.4
Environmental tests
Table 1107: Environmental tests
Description
Type test value
Reference
Dry heat test
•
96 h at +55°C
•
16 h at +85°C
5
IEC 60068-2-2
Dry cold test
•
96 h at -25°C
•
16 h at -40°C
IEC 60068-2-1
Damp heat test
•
6 cycles (12 h + 12 h) at +25°C…
+55°C, humidity >93%
IEC 60068-2-30
Change of temperature test
•
5 cycles (3 h + 3 h)
at -25°C...+55°C
IEC60068-2-14
Storage test
•
96 h at -40°C
•
96 h at +85°C
IEC 60068-2-1
IEC 60068-2-2
5
For relays with an LC communication interface the maximum operating temperature is +70 °C
Protection relay and functionality tests
1MRS757644 H
1216
620 series
Technical Manual
