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EKL1-63B 10KA B Type Residual Current Circuit Breaker

EKL1-63B 10KA B Type Residual Current Circuit Breaker
Technical Data
Residual Current Devices – RCCB

Ultimate protection of people and equipment

RCCB Electrical Features
Mode Electromagnetic
Type(wave form of the earth leakage sensed) B
Rated current In 25,40,63A
Poles 4P
Rated voltage Ue 4P 415V~
Insulation voltage Ui 500V
Rated frequency 50/60Hz
Rated residual operation current(I△n) 30mA
Rated residual making and breaking capacity (I△m) 500(In=2540A) 630(In=63A)
Short-circuit current Inc= I△c 10,000A
SCPD fuse
Break time under I△n ≤0.1s
Rated impulse withstand voltage(1.5/50) Uimp 4000V
Dielectric test voltage at ind.Freq. for 1min 2.5kV
Electrical life 2,000 Cycles
Mechanical life 4,000 Cycles
RCCB Installation
Contact position indicator Yes
Protection degree IP20
Ambient temperature(with daily average≤35℃) -5℃~+40℃
Storage temperature -25℃~+70℃
Terminal connection type Cable/Pin-type busbar/U-type busbar
Terminal size top/bottom for cable 25mm2  18-3AWG
Terminal size top/bottom for busbar 25mm2  18-3AWG
Tightening torque 2.5Nm  22In-lbs
Mounting On DIN rail EN60715(35mm) by means of fast clip device
Connection From top and bottom
 RCCB Tripping Current Range
Lagging Angle I△n>0.01A I△n≤0.01A
0.35I△n≤I△≤1.4I△n 0.35I△n≤I△≤2I△n
90° 0.25I△n≤I△≤1.4I△n 0.25I△n≤I△≤2I△n
135° 0.11I△n≤I△≤1.4I△n 0.11I△n≤I△≤2I△n
Detectable wave form Pulsating direct current sensitive Surge current proof
B class
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.
Circuit Diagram 

Overall and Installation Dimension(mm)

The Residual Current Circuit breaker RCCBs are the safest device to detect and trip against electrical leakage currents, thus ensuring protection against electric shock caused by indirect contacts. These devices must be used in series with an MCB or fuse which protects them from the potentially damaging thermal and dynamic stresses of any over currents. They also act as the main disconnecting switches upstream of any derived MCBs (e.g. domestic consumer unit). Electricians will install an RCBO (Residual Current Breaker with Overcurrent) where there is a need to prevent overload on a particular circuit at the same time as preventing anyone getting a shock, An RCBO also works as an MCB (Minature or Mains Circuit Breaker).