Description Requirement Reference
IEC 60255-21-1
Shock and bump test Class 2
IEC 60068-2-27 (test Ea
shock)
IEC 60068-2-29 (test Eb
bump)
IEC 60255-21-2
Seismic test Class 2
IEC 60255-21-3
15.4 Environmental tests
Table 770: Environmental tests
Description
Type test value Reference
Dry heat test • 96 h at +55ºC
• 16 h at +85ºC
1
IEC 60068-2-2
Cold test • 96 h at -25ºC
• 16 h at -40ºC
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 -40ºC
• 96 h at +85ºC
IEC 60068-2-1
IEC 60068-2-2
Mixed gas corrosion
2
Test parameters according to
GR-63-CORE (outdoor):
• Temp: 30°C ±1
• RH: 70% ±2
• H2S: 100 ±15 ppb
• Cl2: 20 ±3 ppb
• NO2: 200 ±30 ppb
• SO2: 200 ±30 ppb
IEC 60068-2-60, test proce-
dure 2
Salt mist test
2
Severity level 2 IEC 60068-2-52, Test Kb
1
For relays with an LC communication interface the maximum operating temperature is +70°C
2
For relays with optional conformal coating (the chosen coating is recognized by Underwriters
Laboratories (UL) and compliant with the US military specification MIL-I-46058C, IPC-CC-830
(Institute of Printed Circuits) and the RoHS (Restriction of Hazardous Substances) directive
2002/95/EC)
Protection relay and functionality tests 1MRS758755 C
862 REC615 & RER615
Technical Manual
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