Environmental Performance; General - Siemens 7SR12 Argus Manual

7SR11 & 7SR12 Performance Specification
1.5

Environmental Performance

General

1.5.1
1.5.1.1 Temperature
IEC 60068-2-1/2
Type
Operating range
Storage range
1.5.1.2 Humidity
IEC 60068-2-78
Type
Operational test
1.5.1.3 Transient Overvoltage
IEC 60255-5
Type
Between all terminals and earth, or
between any two independent circuits
1.5.1.4 Insulation
IEC 60255-5
Type
Between any terminal and earth
Between independent circuits
Across normally open contacts
1.5.1.5 Installation Category
IEC 60255-27
Type
Installation Category (Overvoltage Category)
1.5.1.6 Pollution
IEC 60255-27
Level
Pollution Degree 2
1.5.1.7 IP Ratings
IEC60529
Type
Installed with cover on
Installed with cover removed
©2017 Siemens Protection Devices Limited
Level
-10 °C to +55 °C
-25 °C to +70 °C
Level
56 days at 40 °C and 93 % relative humidity
Level
5.0 kV, 1.2/50 µs 0.5j
Level
2.5 kV AC RMS for 1 min
1.0 kV AC RMS for 1 min
Level
Class III
Level
Rear IP 10
Front IP 51
Rear IP 10
Front IP 20
Chapter 3 Page 14 of 56