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EKL21-63M RCCB 4.5kA 6kA Residual Current Circuit Breaker
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● Standard: IEC61009-1, IEC62423
● Type: B
● Rated current: 6~63A
● Rated voltage: 230/240~, 400/415V~
● Number of poles: 2P(1P+N), 4P(3P+N)
● Rated Residual Operating Current (IAn): 30, 100, 300mA
● Rated short-circuit breaking capacity: 10kA
● Tripping curve: B, C, D
● Ambient air temperature: -25...+55 ºC
● Connection: From top
● Certificates: CE, CB
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.
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Standard |
IEC/EN61009-1, IEC/EN62423 |
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Protection |
Ground fault, Overcurrent and short circuit, Over voltage (selectable) |
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Type of trip |
Ground fault: Electronic |
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Overload and short circuit: Thermo-magnetic |
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Type of protection (electric leakage) |
B | ||
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No. of poles |
1P+N 3module, 3P+N 5 module, N line with disconnected |
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| Rated current In | 6,10,16,20,25,32,40,50,63A | ||
| Rated voltage Ue |
1P+N:230/240V~, 3P+N:400/415V~ |
||
| Rated frequency | 50/60Hz | ||
|
Rated sensitivity currents I△n |
10,30,100,300mA | ||
| DC tripping threshold (I△dc) | (0.5-2) x IΔn | ||
|
Residual current off-time under I△n |
≤0.1s | ||
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Rated residual making and breaking capacity(I△m) |
500A(In≤50A),10In (In>50A) |
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| Rated breaking capacity | 10,000A | ||
| Energy limiting class | 3 | ||
| Rated impulse withstand voltage (1.2/50) Uimp | 4,000V | ||
| Dielectric test voltage at ind. Freq. for 1min | 2kV | ||
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Thermal release characteristic |
(1.13-1.45) x In |
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Magnetic release characteristic |
B:(3-5) x In, C:(5-10) x In, D:(10-20) x In |
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| Electrical life | 4,000 Cycles | ||
| Mechanical life | 10,000 Cycles | ||
| Contact position indicator | Yes | ||
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Ground fault indicator |
Yes | ||
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Protection degree |
IP20 | ||
| Ambient temperature |
-25℃ to +55℃, Max.95% humidity |
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| Terminal connection type | Cable/Pin-type busbar | ||
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Max. terminal size for cable |
25mm2 | ||
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Max. tightening torque |
2.5N.m | ||
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Installation |
Mounting on 35mm DIN rail |
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| Connection |
From top |
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| 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 | ||
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.
