ABB Relion 620 Series - Environmental Tests

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