“si” and “SiE” type, A & AC class RCCB
10mA, 30mA, 100mA, 300mA and 500mA
instantaneous 100mAs, 300mAs, 500mAs
Residual current circuit-breakers ensure:
n The control and isolation of electrical circuits
n The protection of persons against direct and indirect contacts
n The protection of installations against insulation faults
They conform to both the residual current device standard BS EN 61008 and to
switch standards BS EN 60947-1 and BS EN 60947-3 . Residual current
circuit-breakers are used in the housing, commercial and industrial sectors .
Tripping is ensured for sinusoidal, alternating currents, whether they be quickly
applied or slowly increase .
Tripping is ensured for sinusoidal, alternating residual currents as well as for pulsed
DC residual currents, whether they be quickly applied or slowly increase .
Application: loads with electronics, rectifiers, instruments .
Reinforced continuity of supply on disturbed networks with:
n A high risk of nuisance tripping:
n Sources of blinding:
The RCCB “SiE” types are particularly suitable for use in humid environments
and/or environments polluted by aggressive agents, for example swimming pools,
marinas, the food-processing industry, water treatment plants, industrial sites .
They also incorporate RCCB “si” functions .
It ensures instantaneous tripping (no time-delay) .
Total discrimination can be achieved using a non-selective residual current device
placed downstream .
The residual current trip unit is electromechanical . It functions without an auxiliary
Current rating (Ith) at 40 °C
As in IEC 61008
As in IEC 60947-3:
Successive lightning strokes
IT earthing system
Variable speed controllers, frequency converters
Presence of electronic ballasts
Presence of switchgear that incorporates interference filters i .e . lighting,
Presence of harmonics or high frequency rejection
Presence of DC components: diodes, thyristors, triacs
230…400 V AC, -15…+10 %
AC and A classes: 50/60 Hz
“si” and “SiE” types: 50 Hz
Breaking and making capacity
Isolation with positive break indication, opening is
indicated by a green strip on the device operating
handle . This indicator shows that all poles are open .
Rated impulse withstand
Voltage (Uimp): 6 kV
Insulation voltage (Ui): 440 V
Rated residual (I∆m): 2 .5 kA
Rated (Im): 1 .5 kA
AC 23A rating ≤ 63 A
AC 22B ratings 80 and 100 A