Type B RCCBs, in addition to normal AC, can detect high frequency AC and pure DC earth leakage currents. Reducing the risk of fire and or electrocution through automatic disconnection of the electrical supply relies on the selection of the correct type of RCCB EKL1-63B.
|Type(wave form of the earth leakage sensed)
|B Type RCCB
|Rated current In
|2Pole and 4Pole
|Rated voltage Ue
|2Pole: 240V , 4Pole: 415V
|Insulation voltage Ui
|Rated residual operation current(I n)
|Rated residual making and breaking capacity (I m)
|Short-circuit current Inc= I c
|Break time under I n
|Rated impulse withstand voltage(1.5/50) Uimp
|Dielectric test voltage at ind.Freq. for 1min
|Contact position indicator
|Ambient temperature(with daily average≤35°C)
|Terminal connection type
|Cable/Pin-type busbar/U-type busbar
|Terminal size top/bottom for cable
|Terminal size top/bottom for busbar
|On DIN rail EN60715(35mm) by means of fast clip device
|From top and bottom
Tripping Current Range
|0.35I n≤I≤1.4I n
|0.35I n≤I ≤2I n
|0.25I n≤I≤1.4I n
|0.25I n≤I ≤2I n
|0.11I n≤I≤1.4I n
|0.11I n≤I ≤2In
|Detectable wave form
|Pulsating direct current sensitive
|Surge current proof
Tripping is ensured for sinusoidal AC residual currents pulsed DC residual currents,alternating residual sinusoidal currents up to 1000Hz,pulsating direct residual currents and for smooth direct residual currents,whether applied suddenly or increasing slowly.
They react to AC and pulsating DC fault current which reach 0 or almost 0 within one time period of the mains frequency.
RCCB’s surge capacity.
Not tripping at standardized 8/20 υs surge-current waves acc.to VDE 0432 Part 2 with surge current values of up to 250A.