Basic HTML Version
4
4/2
Technical
Section 9
Dimensions
Section 10
“si” and “SiE” type, A & AC class RCCB
10mA, 30mA, 100mA, 300mA and 500mA
instantaneous 100mA
s
, 300mA
s
, 500mA
s
Protection earth
leakage
Function
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.
AC class
Tripping is ensured for sinusoidal, alternating currents, whether they be quickly
applied or slowly increase.
A class
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.
“si” type
Reinforced continuity of supply on disturbed networks with:
n
A high risk of nuisance tripping:
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,
microcomputing, etc
n
Sources of blinding:
Presence of harmonics or high frequency rejection
Presence of DC components: diodes, thyristors, triacs
Low temperature
“SiE” type
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.
Instantaneous
It ensures instantaneous tripping (no time-delay).
Selective
s
Total discrimination can be achieved using a non-selective residual current device
placed downstream.
Description
The residual current trip unit is electromechanical. It functions without an auxiliary
source.
Technical data
Voltage rating
230…400 V AC, -15…+10 %
Frequency rating
AC and A classes: 50/60 Hz
“si” and “SiE” types: 50 Hz
Current rating (Ith) at 40 °C 16…100 A
As in IEC 61008
Breaking and making capacity
Rated residual (I
∆
m): 2.5 kA
Rated (Im): 1.5 kA
As in IEC 60947-3:
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
Utilization category:
AC 23A rating
≤
63 A
AC 22B ratings 80 and 100 A