EKL1-63B Type B RCCB

EKL1-63B Type B RCCB

EKL1-63B is a EV charging station using type B RCCB with VDE, CB certificated, maxmum current is 63A, Ambient temperature is -25℃-+55℃

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EKL1-63B Type B RCCB

EKL1-63B Type B RCCB

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Product Profile

EKL1-63B  B type RCCB is a electromagnetic type RCD, it can protection B type wave form of the earth leakage sensed and

also have DC smooth direct residual currents, according to IEC61851 standard, it can working as the EV Charging station RCCB,

we normally using 3.7kW (1P+N 25A 30mA), 7.3KW (1P+N 40A 30mA). 11KW (3P+N 25A 30mA), 22KW (4P+N 40A 30mA)

Technical Data

Electrical Features
Mode Electromagnetic
Type (wave form of the earth leakage sensed) B
Rated current In 25,40,63A
Poles 2P(1P+N), 4P(3P+N)
Rated voltage Ue 2P 240V~, 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) 500A(In≤40A), 10ln(In> 40A)
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



Contact position indicator Yes
Protection degree IP20
Ambient temperature (with daily average ≤ 35℃) -25℃~+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 Power supply in both directions



Tripping Current Range
Type Tripping current I△/A
AC 0.5I△n
A 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



Tripping Current Range
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 US
surge-current waves acc.to VDE 0432
Part 2 with surge current values of up
to 250A.


Circuit Diagram



Overall and Installation Dimension (mm)

Product selection form

Poles Rated Current (A) Sensitivity
30mA 100mA 300mA 500mA
1P+N 25A EKL1-63B-1N2530 EKL1-63B-1N25100 EKL1-63B-1N25300 EKL1-63B-1N25500
40A EKL1-63B-1N4030 EKL1-63B-1N40100 EKL1-63B-1N40300 EKL1-63B-1N40500
63A EKL1-63B-1N6330 EKL1-63B-1N63100 EKL1-63B-1N63300 EKL1-63B-1N63500
3P+N 25A EKL1-63B-3N2530 EKL1-63B-3N25100 EKL1-63B-3N25300 EKL1-63B-3N25500
40A EKL1-63B-3N4030 EKL1-63B-3N40100 EKL1-63B-3N40300 EKL1-63B-3N40500
63A EKL1-63B-3N6330 EKL1-63B-3N63100 EKL1-63B-3N63300 EKL1-63B-3N63500

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