7SG11 Argus Technical Reference
©2013 Siemens Protection Devices Limited
P20007 Page 14 of 71
Type
Level
Operating range
-10 C to +55 C
Storage range
-25 C to +70 C
1.5.1.2
Humidity
IEC 60068-2-3
Type
Level
Operational test
56 days at 40 C and 95 % relative humidity
1.5.1.3
Insulation
IEC 60255-5
Type
Level
Between any terminal and earth
Between independent circuits
2.0 kV AC RMS for 1 min
Across normally open contacts
1.0 kV AC RMS for 1 min
1.5.1.4
IP Ratings
Type
Level
Installed with cover on
IP 51
Installed with cover removed
IP 30
1.5.2 Immunity
1.5.2.1
Auxiliary DC Supply Variation
Quantity
Value
Allowable superimposed ac component
12% of DC voltage
Allowable breaks/dips in supply
(collapse to zero from nominal voltage)
20ms
1.5.2.2
High Frequency Disturbance
IEC 60255-22-1 Class III
Type
Level
Variation
Common (longitudinal) mode
2.5 kV
Series (transverse) mode
1.0 kV
3 %
1.5.2.3
Electrostatic Discharge
IEC 60255-22-2 Class III
Type
Level
Variation
Contact discharge
8.0 kV
5 %
1.5.2.4
Radiated Radio Frequency Interference
IEC 60255-22-3 Class III
Type
Level
Variation
20 MHz to 1000 MHz
10 V/m
5 %
1.5.2.5
Fast Transients
IEC 60255-22-4 Class IV
Type
Level
Variation
5/50 ns 2.5 kHz repetitive
4kV
3 %