Chapter 3 - 7SR45 Performance Specification
© 2018 Siemens Protection Devices Limited
Conducted Emissions
IEC 60255-26
0.15 MHz – 0.5 MHz 66 dB (µV) (Average)
79 dB (µV) (quasi peak)
0.5 MHz - 30 MHz
60 dB (µV) (Average)
73 dB (µV) (quasi peak)
Thermal Withstand
IEC 60255-27
#
,
Edition 2.0
Continuous withstand: 2xI
n
Short time withstand:
Test duration 1 s
50 A (1 A Current input)
150 A (5 A Current input)
Functional performance IEC 60255-1 and
IEC 60255-151
for both 1 A Relay and 5 A Relay
Maximum Allowable
Temperature
IEC 60255-6
Max. temperature limit +100
°
C
Gradual shutdown/Start-
up test
IEC 60255-26
Shut down/start up ramp 60 s
Power off 5 min
NOTE:
*
Additional 50 ms DTL pick-up delay applied to binary inputs.
NOTE:
# All aspect of IEC 60255-5 have been covered under IEC 60255-27.
NOTE:
^ Flag output and Pulse output are excluded between any terminals and earth.
NOTE:
$
Not applicable for
Flag output and Pulse output.
Table 1-14
Auxiliary Supply Variation (60 - 240 V AC/DC Variant)
Type Test
Reference
Parameters
Declared Operation
AC Voltage Dips
RV = 230 V AC
IEC 60255-26
0 % RV for 25 cycles
@ 50 Hz
0 % RV for 25 cycles
@ 60 Hz
Normal Operation
1
40 % RV for 10 cycles
@ 50 Hz
40 % RV for 12 cycles
@ 60 Hz
Normal Operation
1
70 % RV for 25 cycles
@ 50 Hz
70 % RV for 30 cycles
@ 60 Hz
Normal Operation
1
DC Voltage Dips
RV = 110 V DC
IEC 60255-26
0 % RV for 0.02 s
Normal Operation
1
40 % RV for 0.2 s
Normal Operation
2
70 % RV for 0.5 s
Normal Operation
2
DC Voltage Dips
IEC 60255-26 0 % RV for 0.02 s
Normal Operation
1
