Residual Current Circuit Breaker RCD Type B 40A/63A 30mA

Residual Current Circuit Breaker RCD Type B 40A/63A 30mA

Rated Current: 16A, 25A,32A ,40A, 63A, 80A,100A

Rated residual operation current: 30mA ,100mA ,300mA
Poles: 2Pole (1P+N) , 4Pole (3P+N)
Rated voltage: 2Pole: 240V , 4Pole: 415V
Rated frequency : 50/60Hz
Short-circuit current Inc= I c 10000A
Standard: IEC 61008-1 , IEC 62423


EKL1-63 RCCB 40A 63A 4 Pole 30mA Type B RCD Circuit Breaker

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.

Electrical Features

Model EKL1-63
Type(wave form of the earth leakage sensed) B Type RCCB
Rated current In 40A,63A, 80A,100A
Poles 2Pole and 4Pole
Rated voltage Ue 2Pole: 240V , 4Pole: 415V
Insulation voltage Ui 500V
Rated frequency 50/60Hz
Rated residual operation current(I n) 30mA,100mA,300mA
Rated residual making and breaking capacity (I m) 500(In=2540A) 630(In=63A)
Short-circuit current Inc= I c 10000A
SCPD fuse 10000
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


Contact position indicator Yes
Protection degree IP20
Ambient temperature(with daily average≤35°C) -5°C~+40°C
Storage temperature -25°C~+70°C
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

 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 ≤2In
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 VDE 0432 Part 2 with surge current values of up to 250A.

Circuit Diagram 

Type B RCD.jpg


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