CAB6LE 6kA Electronic type RCBO
Scope Of Application
CAB6LE-63 series RCBO (residual current circuit breaker), suitable for AC 50Hz, rated insulation voltage 400V, rated working voltage of 230V / 400V and rated current of 63A, it can be used for personal electric shock and equipment leakage protection, overload and short circuit protection of the line, as well as infrequent connection and disconnection of the line and infrequent operation of the motor under normal conditions. This series of products have the advantages of high breaking capacity, small volume, light weight, strong universality of parts, beautiful appearance, etc. it is easy to install and use the guide rail.
Model Meaning
Normal Working Condition
1. The ambient air temperature is -5°C~+40°C, and the average value within 24 hours does not exceed +35°C.
2. Altitude: The altitude of the installation site does not exceed 2000m.
3. Atmospheric conditions: the relative humidity of the air does not exceed 50% when the temperature is +40°C, and a higher precision humidity can be allowed at a lower temperature, for example, the humidity can reach 90% at 20°C. Measures should be taken for occasional condensation due to temperature changes.
4. Pollution degree: The pollution degree at the installation site is level 2.
5. Installation category: The installation category of the RCBO is category II.
6. The external magnetic field at the installation site should not exceed 5 times the geomagnetic field in any direction.
7. Installed in the place without obvious impact and vibration, in the medium without danger {explosion}, and in the place without rain and snow.
8. Installation conditions: TH35 type standard installation rails are used for installation, installed in the distribution box or distribution cabinet . The installation should be installed vertically with the handle up to the position where the power is turned on.
Main Specifications
| Rated current In | 6A、10A、16A、20A、25A、32A、40A、50A、63A |
| Rated residual operating current | 0.03A、0.05A.0.075A、0.1A |
| Poles and current loop | a. Single pole two wire RCBOb. Two pole RCBO
c. Three pole RCBO d. Three pole four wire RCBO e. Four pole RCBO |
| The characteristics of overcurrent instantaneous release | C type (5~10In)、D type (10~20In) |
Technical Data
| Rated voltage Ue | 400V |
| Rated breaking capacity Icn | 4500A/6000A/10000A |
| Rated residual breaking capacity I△m | 2000A |
| Rated residual non tripping current I△no | 0.5 I△n |
| The break time of residual current tripping is shown in the table below | Table 1 |
| Grid distance | 60mm |
Residual current operation breaking time
| In A | In A | Breaking time when the residual current I△ is equal to the following value | ||||
| I△n | 2I△n | 0.25A | I△t | |||
| 6~63 | 0.03 | 0.1 | 0.05 | 0.04 | 0.04 | Max Breaking Time |
Note: I△t is 5A, 10A, 20 A, 50A, 100 A, 200A, 500A residual current value. When I I△n＞0.03A, 0.25A is replaced by 5 I△n in the table.
◇ RCBOs with a rated residual operating current I△n≤30mA can automatically trip when the power supply voltage falls to 50V (relative voltage) when a fault occurs, and when a ground fault current greater than or equal to I△n occurs.
◇ The mechanical electrical life of the RCBO is more than 4000 times, of which the load operation {electrical life} is more than 2000 times, the operating frequency: In≤25A, not more than 240 times/h; In> 25A, not more than 120 times/h.
◇ Protection characteristics of overcurrent release
The protection characteristics of the overcurrent release meet the requirements of Table 2, and its reference ambient temperature is +30°C, which is allowed to be +5°C.
| Serial number | Overcurrent instantaneous release type | Test current A | Set time t | Expected results | Starting state |
| a | C、D | ≤63 | 1.13In | t≥1h | Cold state |
| b | C、D | ≤63 | 1.45In | t<1h | Rise to the specified current within 5S after test a) |
| c | C、D | ≤32 | 2.55In | 1s<t<60s | Trip Cold state |
| >32 | 1st12os | ||||
| d | C | ≤63 | 5In | t≥0.1st<0.1s | Trip Cold state |
| D | 10In | ||||
| e | C | ≤63 | 10In | t≥1h | Trip Cold state |
| D | 20In |
Structure
1. This series of RCBO are current-operated electronic RCBOs, which are assembled by leakage trip units and CAB6 series molded case circuit breakers. They have protection functions such as leakage (electric shock), overload, and short circuit.
2. The leakage release part is mainly composed of zero-sequence current transformer made of high magnetic permeability material, electronic control circuit, release and connecting rod, etc., and is installed in a plastic case; the part of RCBO is made of operating mechanism, Electromagnetic release, thermal release, contact system, arc extinguishing chamber, etc., and installed in another plastic shell, the two plastic shell are assembled by screw connection.
3. Working principle of electric leakage (or electric shock)
When there is a surge shock fault in the protected circuit, the vector sum of the current of the zero-sequence current transformer is not equal to zero. When the residual current reaches the rated residual operating current elbow, a signal voltage is generated at the secondary output of the transformer. Conduction, the tripping electromagnetic system pulls in, and the connecting rod pushes the circuit breaker to trip within a specified time, cutting off the power supply, thereby protecting the person from electric shock or line leakage.
4. Principle of overload or short circuit protection
When an overloaded or short-circuit fault occurs on the protected line, the overcurrent release (electromagnetic release or thermal release) in the disconnection section cuts off the power supply, thereby protecting the line from overload or short circuit.
5. Note: This system can not protect the electric shock caused by the leakage of the two wires that contact the protected circuit at the same time. Please pay attention to the safe use of electricity.
Working Principle
Wiring diagram See Figure 1(a~e)
Overall And Installation Dimension
◇ Rated current: 6-32A
◇ Rated current: 40-63A
Install
1. During installation, check whether the basic technical data on the nameplate meets the use requirements.
2. Check the RCBO and operate it several times. The operation shall be flexible and reliable, and it can be installed only after confirming that it is intact.
3. The RCBO shall be installed according to the specified requirements. The incoming end is the power side above the circuit breaker, the outgoing end is the load side below the circuit breaker, and the handle up position is the contact closed position.
4. During installation, install the RCBO on the installation track, insert the incoming and outgoing wires into the terminal block, and connect the RCBO with screws.
Note: the cross-sectional area of the selected connecting wire must be suitable for the rated current. Refer to the following table when selecting PVC copper wire.
| Rated current A | 6 | 10 | 16 | 20 | 25 | 32 | 40 | 50 | 63 |
| Sectional area of conductor mm2 | 1 | 1.5 | 2.5 | 2.5 | 4.0 | 6 | 10 | 10 | 16 |
6. With n-wire RCBO, when wiring, the incoming n-wire shall be connected to the load zero wire, and the outgoing n-wire shall be connected to the load zero wire, and the outgoing n-wire cannot be grounded, so as to make the electronic circuit work normally and play the role of leakage protection.
Use And Maintenance
1. The leakage current, overload and short circuit protection characteristics of the RCBO are all set at the factory and cannot be adjusted arbitrarily during use.
2. After the RCBO is newly installed or operated for a certain period (usually one month), under the closing and energizing state, the test“ button” needs to be pressed, and the RCBO should be openable, otherwise it indicates that the RCBO is Failure, must be removed for inspection.
3. After the RCBO has leakage (or electric shock), the“ instruction button” protrudes to indicate. Press the“ instruction button” before closing.
4. The RCBO is opened due to the failure of the controlled circuit (overload, short circuit, leakage), and the operating handle is in the trip position. After finding out the reason, removing the fault, the handle should be moved down to make the operating mechanism buckle before closing.
5. According to the different protection objects, different RCBO with different rated current, rated residual operating current and leakage breaking time should be selected.
Ordering Instructions
The user must specify the following when ordering:
1. Name and model:
2. Rated current(In)
3. Types of instantaneous overcurrent releases (C,D);
4. Rated residual operating current (I△n);
5. Number of poles (P);
6. Order quantity.
For example: Order CAB6LE-63/3N RCBO, rated current 20A, type D, three-pole four-wire (3P+N), rated residual operating current 30mA, quantity 50
