User`s manual

7-25
Though a
capacitor is very
effective for the
arc deletion at
shut-off. But
charged current to
the capacitor may
melt the contact
point at turning ON
a contact point.
Though a
capacitor is very
effective for the
arc deletion at
shut-off. But at the
opening of the
circuit of a contact
point, electricity is
accumulated at the
capacitor.
Therefore, the
short circuit current
of the capacitor
may melt the
contact point at
turning ON the
contact.
Power supply
C
Load
Power supply
C
Load
Note: Avoid the use of a capacitor only as an arc killer, as shown below: