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Electrical design
Protection level U
p
u
2
Differential mode L-N
Protection level U
p
u
1
u
2
t
1
/
t
2
t
2
Warning:
• Before installation or maintenance, switch off the
power
• Avoid touching live parts
Protection levels
The illustrations on the left show the clamped
1.2/50 µs surge voltage differential mode and
common mode waveforms and its protection levels
U
as function of clamped 8/20 µs surge current I
p
The corresponding voltage protection levels U
function of clamped surge current Ic can be found in
the datasheet.
The initial common mode clamping voltage U
extreme short duration (approx. 100 ns) and will be
completely absorbed by the driver; it will not result
in significant surge stress to the connected LED
module and can be ignored.
.
c
as
p
has an
1
9
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