Table 1-13 Climatic/Environmental Tests - Siemens 7SR45 Argus User Manual

Type Test
Thermal Withstand
Continuous
Functional
Maximum Allowable
Temperature
NOTE:
#
All aspect of IEC 60255-5 have been covered under IEC 60255-27.
*
Pulse output X3 is excluded between any terminals and earth.
Table 1-13
Type Test Reference
Ambient Operating
IEC 60068-2-1,
Temperature
IEC 60068-2-2
Permissible IEC 60068-2-1,
Temporary Operating IEC 60068-2-2
Temperature,
(Tested for 16 h)
Permissible IEC 60068-2-1,
Temporary Operating IEC 60068-2-2
Temperature,
(Tested for 96 h)
Cold test - Operational IEC 60068-2-1
test
Cold test - Non-
operational storage
test
Dry heat test
IEC 60068-2-2
Operational
Dry heat test Non-
Operational, Storage
Damp heat test,
IEC 60068-2-78
Steady State
Damp heat test, cyclic IEC 60068-2-30
NOTE:
Cold test at -40°C:
The device was kept in non-energized condition at -40° C for 16 hours. Energized at the end of 16 hours
(@ -40°C ) and accuracy test was performed and found to be within limits. The LCD was blank at -40°C.
After accuracy test at -40° C, temperature was ramped up to room temperature and accuracy was found
within limits, the LCD resumes to the normal condition.
© 2017 Siemens Protection Devices Limited
Reference
IEC 60255-27
IEC 60255-1
IEC 60255-3
IEC 60255-6
Climatic/Environmental Tests
Requirement
1s:
2 x In
50 A (1 A) 150 A (5 A)
Burden:
≤ 3.0 VA per phase and ≤ 0.2 VA earth for 1 A
≤ 3.5 VA per phase and ≤ 0.2 VA earth for 5 A
for both 1 A and 5 A CTs
Max. temperature limit +100° C
Requirement
-10°C to + 60°C
-40°C to + 70°C
-20°C to + 70°C
-10°C, 96 h
-25°C, 16 h
+60°C, 96 h
+70°C, 16 h
4 days at 95% RH, +40°C
(+25...55°C, R.H. > 93%) 6 cycles
7SR45 Performance Specification
Chapter 3 Page 7 of 10