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High quality CJRO8-63 4P 63A 30mA Residual RCBO,Current Circuit Breaker with Overload Protection

Short Description:

Technical Data
·
Standard: IEC61009-1
·Mode: Electronic
·Type: A/AC
·Tripping curve: B,C,D
·Pole No.: 2P,4P
·Rated voltage: 240/415V~
·Rated frequency: 50/60Hz
·Rated current: 32A,63A
·Rated residual operating current(l△n): 30,100,300mA
·Rated impulse withstand voltage (Uimp) : 4kV
·Rated breaking capacity (lcn): 6000A,10000A
·Energy limiting class: 3
·Electrical and Mechanical life: 4000/20,000


Product Detail

Product Tags

Installation

Fault current in dicator YES
Protection degree IP20
Ambient temperature 25°C~+40°C and its average over a period of 24h does not exceed +35°C
Storage temperature -25°C~+70°C
Terminal connection type Cable/U-type busbar/Pin-type busbar
Terminal size top for cable 25mm²
Tightening torque 2.5N.m
Mounting On DIN rail FN 60715 (35mm) by means of fast clip device
Connection Top and bottom

 

Overload Current Protection Characteristics

Test procedure Type Test Current Initial State Tripping or Non-tripping Time Limit Expected Result Remark
a B,C,D 1.13In cold t≤1h no tripping
b B,C,D 1.45In after test a t<1h tripping The current steadily rises to
the specified value within 5s
c B,C,D 2.55In cold 1s<t<60s tripping
d B 3In cold t≤0.1s no tripping Turn on the auxiliary switch to
close the current
C 5In
D 10In
e B 5In cold t<0.1s tripping Turn on the auxiliary switch to
close the current
C 10In
D 20In

 

Residual Current Operating Breaking Time

Type In/A I△n/A Residual Current (I△) Is Corresponding To The Following Breaking Time (S)
AC Type any
value
any
value
1ln 2In 5In 5A,10A,20A,50A
100A,200A,500A
A Type >0.01 1.4In 2.8In 7In
0.3 0.15 0.04 Max Break-time
The general type RCBO whose current IΔn is 0.03mA or less can use 0.25A instead of 5IΔn.

 

 

How to choose the right RCBO: Earth leakage circuit breaker with overload protection

How to choose the right RCBO: Earth leakage circuit breaker with overload protection

When it comes to electrical safety, investing in the right equipment is crucial. The residual current circuit breaker (RCBO) with overload protection is one such device that plays a vital role in protecting electrical systems and preventing electric shock. RCBOs combine the functions of a residual current device (RCD) and a miniature circuit breaker (MCB) to provide advanced protection against electrical faults.

Choosing the correct RCBO for your application is critical to ensuring optimal safety and performance. Here are some factors to consider when choosing an RCBO:

1. Rated current: The rated current of the RCBO should match the maximum current capacity of the electrical system. This value may vary depending on the size of the circuit and the devices it powers. It is important to select an RCBO with an appropriate current rating for your specific requirements to avoid overheating or tripping problems.

2. Sensitivity: The sensitivity of an RCBO is measured in milliamperes (mA) and determines the level of current imbalance required to trip the device. The lower the sensitivity, the faster the RCBO will respond to dangerous failures. For residential applications, a sensitivity of 30mA is typically recommended. However, in some industrial environments, higher sensitivity may be required.

3. Type: There are many types of RCBO, such as AC type, A type, F type, B type, etc. Each type provides different protection levels. Type AC is suitable for most residential applications and protects against indirect contact and fire hazards. Type A is more sensitive, providing protection against direct and indirect contact and additional protection against pulsating direct current (DC) faults. Type F provides enhanced protection against fire risks, making it suitable for specific industrial applications. Finally, Type B provides unparalleled protection against all types of faults, including smoothed DC currents.

4. Manufacturer and Certification: Choose RCBO made by a reputable company known for its commitment to quality. Look for certifications such as International Electrotechnical Commission (IEC) standards or accreditation from independent testing laboratories to ensure that the RCBO meets recognized safety standards.

5. Additional features: Depending on your specific requirements, consider additional features such as short-circuit protection, over-current protection, and surge protection. These additional features provide additional security and convenience.

In summary, choosing the right RCBO for your electrical system is critical to ensuring reliable electrical protection. By considering factors such as ampere rating, sensitivity, type, manufacturer reputation, certifications, and additional features, you can make an informed decision that guarantees optimal safety and performance. Invest wisely in your electrical safety by choosing the right RCBO.


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