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Electrical fast
transient/burst
IEC 61000-4-4
± 2 kV for power
supply lines
± 1 kV for input/
output lines
± 2 kV for power
supply lines
± 1 kV for input/
output lines
Mains power quality
should be that of a
typical commercial or
hospital environment.
Surge
IEC 61000-4-5
±2 kV Power lines
±2 kV Power lines
Mains power quality
should be that of a
typical commercial or
hospital environment.
interruptions and
voltage variations
on power supply
input lines
IEC 61000-4-11
0% UT; 0.5 cycle
At 0°,45°,90°,135°,180
°,225°,270°and 315°.
0 % UT; 1 cycles
70 % UT; 25/30 cycles
0 % UT; 250/300 cycle
0% UT; 0.5 cycle
At 0°,45°,90°,135°,180
°,225°,270°and 315°.
0 % UT; 1 cycles
70 % UT; 25 cycles
0 % UT; 250 cycle
Mains power quality
should be that of a
typical commercial or
hospital environment.
If the user of the
device requires
continued operation
during power mains
interruptions, it is
recommended that
the device be powered
from an uninterruptible
power supply or a
battery.