| Breaking Capacity: | Low Voltage Circuit Breakers |
|---|---|
| Operation: | Electric Type |
| Speed: | High-Speed Circuit Breaker |
| Samples: |
|---|
| Customization: |
|---|
|
Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
|---|
| Payment Method: |
|
|---|---|
| Initial Payment Full Payment |
| Currency: | US$ |
|---|
| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
|---|
Suppliers with verified business licenses
Audited Supplier Rated current(A)
Conductor area mm
8.4 The working reference temperature of RCBO is 30ºC , when the ambient temperature changes, its setting value should be corrected. If multiple RCBOs are installed in a closed box and the temperature inside the box rises, the rated current should be multiplied by the
derating factor of 0.8.
8.5 The "N" line on the RCBO should be connected to the neutral line to make the electronic circuit work normally and play a prote- ctive role.
8.6 It is not allowed to use the method of short-circuiting the phase line to the neutral line or the phase line to the phase line to carry out the short-circuit protection capability test on the RCBO.
9. Fault analysis and troubleshooting are shown in Table 5. Table 5
The cause of the failure Cause analysis Exclusion method
RCBO load-side
neutral lineMalfunction
caused by grounding
Malfunction caused by
leakage current and
wire-to-ground capa-
citance current
10. Recommended selection principles
10.1 General selection principles
a)The rated working voltage of RCBO ≥ the rated voltage of the line.
b) The rated current of RCBO is 1.1-1.25 times the load current calculated by the line.
c)The rated short-circuit breaking capacity of RCBO ≥ the maximum short-circuit
current that may appear in the line.
d)RCBO instantaneous release setting current ≤ 0.8 times the end of the line phase
-to-ground or phase-to-phase short circuit current.
e) Single-phase rated current of electric heaters, refrigerators and incandescent la-
mps at a given voltage and power In=P/U; three-phase rated current In=P/1.732U.
RCBO residual current is generally selected as 30mA, which is used as personal
contact protection.
To install and use the product, please read the retention manual.
LQB5LE-100 leakage circuit breaker user's Guide:
Warn!
1. This product must be wired and installed by qualified personnel;
2. It is strictly forbidden to operate the leakage circuit breaker with wet hands,
otherwise electric shock accidents may occur;
3. Leakage circuit breakers cannot be used for personal electric shock caused by
simultaneous contact with the two lines of the protected circuit. Protect;
4. When the leakage circuit breaker is used for the action characteristic test, it
should be tested and qualified by the relevant state departments. It is strictly
forbidden to use the test method of directly touching the grounding device or direct
short circuit;
5. It is strictly forbidden to directly test the insulation resistance at the outlet of the
product; the power supply of the electronic circuit board should be disconnected,
And ensure that there is no voltage at the input and output terminals of electronic
components before testing, otherwise the circuit board will be burned electronic co-
mponents;
6. The overload, short circuit and residual current protection characteristics of the
leakage circuit breaker are all set by the manufacturer. It is allowed to disassemble
and adjust at will;
7. After the leakage circuit breaker is opened due to the failure of the protected circuit
(leakage, overload or short circuit, etc.), The reason must be
found out, and the closing operation can only be performed after troubleshooting:
8. It is strictly forbidden to connect the load when the leakage circuit breaker is closed:
9. During use, there should be no phase failure or "N" wire disconnection on the power
supply side. Wiring, this product cannot play the role of leakage protection.
Precautions!
1. Leakage circuit breakers must not be attacked by rain or snow during transportation,
storage and use.
2. Before installation, check whether the basic technical data of the signs and signs
meet the requirements (the selected current The size should match the actual use):
manual operation several times should be flexible, confirm that it is intact, Installation:
When installing, wires that can withstand the corresponding current carrying capacity
should be selected. See attached table 3 for reference values.
3. Strictly follow the wiring diagram for installation.
4. Run check: 4.1 Check whether the wiring is correct, especially check that the
input terminal of the leakage circuit breaker should be connected to the power supply,
and the output terminal should be connected to the load.
4.2 Confirm that the screws of each terminal have pressed the wire tightly, and the wire
should be in the corresponding wiring frame.
4.3 Close the leakage circuit breaker and press the test button to check whether the
leakage protection performance is normal and reliable. If the leakage circuit
breaker can be disconnected normally, the indicator will be red.
5. After the leakage circuit breaker has been running for a certain period of time
(usually one month), it is necessary to press the test button in the closed and energ-
ized state to check whether the leakage protection performance is normal andreli-
able (press the test button once a month, and the leakage circuit breaker should be
broken once). In case of failure, it should be removed and sent to the manufacturer
for repair.
6. The neutral wire () at the outlet end can only be used as a working neutral wire, not
a protective neutral wire. 7. When the leakage exitable model is selected, the leakage
"exit" function of the circuit breaker is an emergency use function, which is only used
by professional power supply maintenance personnel in emergency maintenance situations.
After maintenance, it must be put into leakage protection function status immediately.
Product Over View:
1.Provide protection against earth fault/leakage current and function of isolation
2.High short-circuit current withstand capacity
3.Applicable to terminal and pin/fork type busbar connection
4. Equipped with finger protected connection terminals
5.Automatically disconnect the circuit when earth fault/leakage current occurs and exceeds the rated sensitivity6.Independent of power supply and line voltage, and free from external interference, voltage fluctuation.
| Standard | Unit | IEC/EN 61009-1 | |
|
Electrical features |
Mode | Electronic type | |
| Type(wave form of the earth leakage sensed) | A, AC | ||
| Thermo-magnetic release characteristic | B,C,D | ||
| Rated current ln | A | 6,10,16,20,25,32,40,63;80,100 | |
| Poles | P | 1P+N, 3P+N | |
| Rated voltage Ue | V | AC 230, 400 | |
| Rated sensitivity I△n | A | 0.01, 0.03, 0.1, 0.3, 0.5 | |
| Rated residual making and breaking capacity l△m | A | 500 | |
| Rated short-circuit capacity Icn | A | 6000 | |
| Break time under I△n | S | ≤0.1 | |
| Rated frequency | Hz | 50/60 | |
| Rated impulsewithstand voltage(1.2/50)Uimp | V | 4000 | |
| Dielectric test voltage at ind.Freq for 1min | kV | 2 | |
| Insulation voltage Ui | V | 250 | |
| Pollution degree | 2 | ||
| Other | Over/under voltage protection; | Temperature ; Fire-alwarm | |
|
Mechanical features |
Electrical life | 4000 | |
| Mechanical life | 10000 | ||
| Fault current Indicator | YES | ||
|
Protection degree |
IP20 |
||
|
Ambient temperature (with daily average≤35ºC) |
ºC |
-5~+40(Special application please refer to temperature compensation correction) |
|
| Storage temperature | ºC | -25~+70 | |
| Installation | Terminal connection type | Cable/Pin-type busbar/U-type busbar | |
| Terminal size top/bottom for cable | mm2 | 25 | |
| AWG | 18-5 | ||
| Terminal size top/bottom for busbar | mm2 | 25 | |
| AWG | 18-3 | ||
| Mounting | On DIN rail EN 60715(35mm)by means of fast clip device | ||
| Connection | From top |
Our Services:
Q1. What advantages do you have?
A1. We are the direct Manufacturer in Wenzhou China , we have professional,our teams have more than 20years experience in the field.
Suppliers with verified business licenses
Audited Supplier 
){kind=link}
){kind=link}