4-2 Residual Current Circuit Breaker Test
a) Proceed as above 4-1.
b) If the LED display as following, it means the condition
of the " L and N inverted ".
L-PE
L-N
N-PE
Under this condition you may inverse conductors " N "
and " L " by using the " Phase Polarity Slide Switch "(3-4,
Fig. 1) to change the phase polarity.
Attention :
To select the correct phase polarity is necessary
as the RCCB can only be tripped with correct
phase connection.
c) Select desired tripping current( 10 mA, 30 mA, 100 mA,
300 mA or 500 mA ) by select the " Rotary Switch for
Tripping Current "(3-5, Fig. 1) and trigger the RCCB
( Residual Current Circuit Breaker ) by pushing the " Test
Button " (3-3, Fig. 1).
d) After push the " Test Button ", then RCCB will be
triggered if already select the correct tripping current & if
the RCCB operates orderly. Other wise the RCCB is out of
order.
4
