ETEK EKL5-63 Type B RCBO Circuit Breaker with Overload Protection provides the utmost level of protection for EV Charging

EKL5-63 series electronic type b RCBO mainly used for AC 50Hz or 60Hz, rated voltage 230 or below and rated working current 63A or below and immediately cut off power supply once someone suffers from electric shock or leakage current above specified value. It can effectively protect personal security and avoid damage to equipment. This product meets the standard of IEC61009-1,IEC62423.

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ETEK EKL5-63 Type B RCBO Circuit Breaker with Overload Protection provides the utmost level of protection for EV Charging

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Product Profile

RCBOs type B grant protection to persons and machineries in presence of DC current and high frequency AC fault current. Among the several types of RCBOs, type B provides the utmost level of protection.

1. Residual current sensitivity – UNIVERSAL
  • AC pure sinus residual current, 50/60Hz
  • A sinus and pulsating direct current, 50/60Hz
  • B: AC + A + smooth direct current + high frequency (1kHz)
2. Standards
  • IEC/EN 61009-1 Basic standards for RCBOs AC and A type
  • IEC/EN 62423 additional requirements for type B
3. Typical applications
  • Fault protection (protection against indirect contact of live parts
  • Additional protection (protection in case of direct contact of live parts, I∆n≤30mA)
  • Fire Protection (for locations exposed to fire hazard, I∆n≤300mA)
4.Which are vulnerable to smooth DC residual currents?
  • Photovoltaic systems, AC side.
  • Charging stations for electric vehicles.
  • Variable speed machine tools.
  • UPS, computer data centers.
  • Elevator controls.
  • Cranes of all kinds.
  • Electronic equipment on construction sites.
  • Test set-ups in laboratories.
  • General installations where DC smooth direct residual currents can be expected.

EKL5-63 B type RCBO maximum current can reach 63 amps, and three leakage current options of 30mA, 100mA and 300mA are available to meet the needs of different scenarios.

Technical Data

Electrical Features
Mode Electronic
Type B
Rated current In 16,20,25,32,40,50,63A
Poles 2P(1P+N),4P(3P+N)
Rated voltage Ue 2P 240V~
4P 415V~
Insulation voltage Ui 500V
Rated frequency 50/60Hz
Rated residual operating current(I△n) 30,100,300mA
Break time under I△n ≤0.1s (S type <0.5s)
Rated breaking capacity 6,000A, 10,000A
Energy limiting class 3
Rated impulse withstands voltage (1.5/50) Uimp 4,000V
Dielectric test voltage at ind.Freq. for 1min 2kV
Pollution degree 2
Thermo-magnetic release characteristic B, C, D
Mechanical Features
Electrical life 4,000 Cycles
Mechanical life 10,000 Cycles
Contact position indicator Yes
Protection degree IP20
Reference temperature for setting of thermal elements 30℃
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 a fast clip device
Connection Power supply from top
Combination with accessories
Auxiliary contact EKM1-OF
Alarm contact EKM1-FB
Shunt release EKM1-MX
Over voltage protection Yes
Under voltage protection Yes
Over/Under voltage protection Yes


Circuit Diagram



Installation size


Product selection form

Breaking capacity Poles Rated Current (A) Sensitivity
30mA 100mA 300mA
B Curve
10KA 1P+N 6A EKL5-63B-1NB0630 EKL5-63B-1NB06100 EKL5-63B-1NB06300
10A EKL5-63B-1NB1030 EKL5-63B-1NB10100 EKL5-63B-1NB10300
16A EKL5-63B-1NB1630 EKL5-63B-1NB16100 EKL5-63B-1NB16300
20A EKL5-63B-1NB2030 EKL5-63B-1NB20100 EKL5-63B-1NB20300
25A EKL5-63B-1NB2530 EKL5-63B-1NB25100 EKL5-63B-1NB25300
32A EKL5-63B-1NB3230 EKL5-63B-1NB32100 EKL5-63B-1NB32300
40A EKL5-63B-1NB4030 EKL5-63B-1NB40100 EKL5-63B-1NB40300
50A EKL5-63B-1NB5030 EKL5-63B-1NB50100 EKL5-63B-1NB50300
63A EKL5-63B-1NB6330 EKL5-63B-1NB63100 EKL5-63B-1NB63300
  C Curve
6A EKL5-63B-1NC0630 EKL5-63B-1NC06100 EKL5-63B-1NC06300
10A EKL5-63B-1NC1030 EKL5-63B-1NC10100 EKL5-63B-1NC10300
16A EKL5-63B-1NC1630 EKL5-63B-1NC16100 EKL5-63B-1NC16300
20A EKL5-63B-1NC2030 EKL5-63B-1NC20100 EKL5-63B-1NC20300
25A EKL5-63B-1NC2530 EKL5-63B-1NC25100 EKL5-63B-1NC25300
32A EKL5-63B-1NC3230 EKL5-63B-1NC32100 EKL5-63B-1NC32300
40A EKL5-63B-1NC4030 EKL5-63B-1NC40100 EKL5-63B-1NC40300
50A EKL5-63B-1NC5030 EKL5-63B-1NC50100 EKL5-63B-1NC50300
63A EKL5-63B-1NC6330 EKL5-63B-1NC63100 EKL5-63B-1NC63300
3P+N   B Curve
6A EKL5-63B-3NB0630 EKL5-63B-3NB06100 EKL5-63B-3NB06300
10A EKL5-63B-3NB1030 EKL5-63B-3NB10100 EKL5-63B-3NB10300
16A EKL5-63B-3NB1630 EKL5-63B-3NB16100 EKL5-63B-3NB16300
20A EKL5-63B-3NB2030 EKL5-63B-3NB20100 EKL5-63B-3NB20300
25A EKL5-63B-3NB2530 EKL5-63B-3NB25100 EKL5-63B-3NB25300
32A EKL5-63B-3NB3230 EKL5-63B-3NB32100 EKL5-63B-3NB32300
40A EKL5-63B-3NB4030 EKL5-63B-3NB40100 EKL5-63B-3NB40300
50A EKL5-63B-3NB5030 EKL5-63B-3NB50100 EKL5-63B-3NB50300
63A EKL5-63B-3NB6330 EKL5-63B-3NB63100 EKL5-63B-3NB63300
  C Curve
6A EKL5-63B-3NC0630 EKL5-63B-3NC06100 EKL5-63B-3NC06300
10A EKL5-63B-3NC1030 EKL5-63B-3NC10100 EKL5-63B-3NC10300
16A EKL5-63B-3NC1630 EKL5-63B-3NC16100 EKL5-63B-3NC16300
20A EKL5-63B-3NC2030 EKL5-63B-3NC20100 EKL5-63B-3NC20300
25A EKL5-63B-3NC2530 EKL5-63B-3NC25100 EKL5-63B-3NC25300
32A EKL5-63B-3NC3230 EKL5-63B-3NC32100 EKL5-63B-3NC32300
40A EKL5-63B-3NC4030 EKL5-63B-3NC40100 EKL5-63B-3NC40300
50A EKL5-63B-3NC5030 EKL5-63B-3NC50100 EKL5-63B-3NC50300
63A EKL5-63B-3NC6330 EKL5-63B-3NC63100 EKL5-63B-3NC63300

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