RCBO JCB1LE-125 125A 6kA
Introduction
The JCB1LE-125 RCBOs (residual current circuit breaker with overload protection) are suitable for distribution boards, applied under occasions such as industrial, and commercial, high-rise buildings and residential houses.
They are suitable for AC 50Hz, single phase, 3 phase, rated current from 63A to 125A circuit.
They prevent earth leakage, direct or indirect contact electric shock and other faults, and are applicable to low-voltage terminal power distribution in such fields as industry, civil construction, energy, communication and infrastructure. They provide short-circuit protection, overload protection, leakage protection and isolation protection.
When personal electric shock or grid leakage, When the current exceeds the specified value, JCB1LE-125 RCBO will be quickly cut off the faulty power supply in a very short time to protect the safety of people and electrical equipment. At the same time, it can protect the line from overload or short-circuit, and it can also be used as an infrequent conversion of the line.
Combination of ELCB & MCB (EL+MCB) offers 3 in 1 protection against -overload, short circuit and earth leakage
Product Description

Main Features
● Electronic type: JCB1LE-125 RCBO is designed with electronic components to ensure reliable and precise operation.
● Leakage protection: These RCBOs have the function of preventing leakage, which enhances the safety of the electrical system.
● Overload and short-circuit protection: RCBO provides comprehensive protection against overload and short-circuit conditions, protecting equipment and personnel.
● Non-Line/Load Sensitive: RCBO is designed to be insensitive to line/load conditions, ensuring consistent performance in a variety of electrical configurations.
● Breaking capacity: RCBO has a breaking capacity of up to 6kA, which can effectively break fault current and minimize potential damage to the electrical system.
● Rated current: Provides a variety of rated currents from 63A to 125A to meet different power load requirements.
● Trip curve: Type B and C trip curves are provided to provide flexible response characteristics for different applications.
● Trip sensitivity: RCBO offers 30mA, 100mA and 300mA trip sensitivity options for precise response to fault conditions.
● Type A or AC: Customers can choose between Type A or AC configurations to meet specific application needs.
● Insulating openings: RCBO has insulating openings to facilitate busbar installation and simplify the installation process.
● DIN rail installation: Designed for 35mm DIN rail installation, ensuring compatibility with standard mounting systems.
● Screwdriver compatibility: Compatible with a variety of combination head screwdrivers for easy installation and maintenance.
● Compliance: RCBO meets ESV additional testing and verification requirements to ensure compliance with industry standards for safety and performance. They also comply with IEC 61009-1 and EN61009-1 standards, providing quality and reliability assurance.
Technical Data
● Standard: JCB1LE-125 RCBO complies with IEC 61009-1 and EN61009-1 standards to ensure compliance with industry safety and performance requirements.
● Type: This RCBO is electronic and uses advanced electronic components to work reliably and accurately.
● Type (detected leakage waveform): Customers can choose Type A or Type AC configurations to meet specific application needs, providing flexibility in leakage detection.
● Number of poles: Available in 1-pole, 2-pole, 3-pole and 4-pole configurations, suitable for various electrical system settings.
● Rated current: There are four rated currents: 63A, 80A, 100A, and 125A to meet different electrical load requirements.
● Rated working voltage: The rated working voltage of RCBO is AC 400V and 415V, ensuring compatibility with standard electrical systems.
● Rated sensitivity I△n: Provides 30mA, 100mA, and 300mA rated sensitivity options to accurately respond to fault conditions.
● Rated breaking capacity: The rated breaking capacity of RCBO is 6kA, which can effectively break fault current and minimize potential damage to the electrical system.
● Insulation voltage: RCBO insulation voltage is 500V, ensuring safe and reliable operation in various electrical environments.
● Rated frequency: The rated frequency is 50/60Hz, ensuring compatibility with standard power systems.
● Rated impulse withstand voltage (1.2/50): The rated impulse withstand voltage of RCBO is 6kV, which has strong protection against transient voltage surges.
● Pollution level: The pollution level is Level 2, suitable for use in moderately polluted environments.
● Thermal magnetic release characteristics: It has B-curve, C-curve and D-curve characteristics and can flexibly respond to overcurrent conditions.
● Mechanical life: The mechanical life is designed to be 10,000 times to ensure long-term reliability and durability.
● Electrical Life: These RCBOs have an electrical life of 2000 cycles, providing consistent performance over a long service life.
● Protection level: The protection level is IP20, which means it can protect solid objects larger than 12mm without harmful effects.
● Ambient temperature: Suitable for operation at ambient temperatures from -5°C to +40°C, with the daily average temperature not exceeding 35°C.
● Contact position indicator: Equipped with contact position indicator, green indicates OFF and red indicates ON, providing intuitive status indication.
● Terminal connection type: Compatible with cable or pin busbar connections, providing flexibility in installation options.
● Installation: Designed to be installed on DIN rail EN 60715 (35mm) using a quick clamp device to ensure simple and safe installation.
● Recommended torque: The recommended torque for terminal connection is 2.5Nm to ensure correct and firm connection.
● Connection method: Flexible connection from top or bottom for easy installation and maintenance.
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Standard |
IEC61009-1 , EN61009-1 |
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Electrical features |
Rated current In (A) |
63,80,100,125 |
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Type |
Electronic |
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Type (wave form of the earth leakage sensed) |
A or AC are available |
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Poles |
1 pole, 2 Pole, 3 pole, 4 pole |
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Rated voltage Ue(V) |
230/240 |
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Rated sensitivity I△n |
30mA,100mA,300mA |
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Insulation voltage Ui (V) |
500 |
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Rated frequency |
50/60Hz |
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Rated breaking capacity |
6kA |
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Rated impulse withstand voltage(1.2/50) Uimp (V) |
6000 |
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Pollution degree |
2 |
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Thermo-magnetic release characteristic |
B, C |
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Mechanical features |
Electrical life |
2, 000 |
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2, 000 |
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Contact position indicator |
Yes |
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Protection degree |
IP20 |
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Reference temperature for setting of thermal element(℃) |
30 |
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Ambient temperature (with daily average ≤35℃) |
-5…+40 |
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Storage temperation (℃) |
-25…+70 |
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Installation |
Terminal connection type |
Cable/Pin-type busbar |
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Terminal size top/bottom for cable |
16~50/6-1/0 AWG |
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Terminal size top/bottom for Busbar |
16~35mm2 / 6-2 AWG |
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Tightening torque |
3.5 N*m / 31 In-Ibs. |
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Mounting |
On DIN rail EN 60715 (35mm) by means of fast clip device |
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Connection |
From top or bottom are available |

JCB1LE-125 Dimensions




































