If the wiring is not designed for high voltage, there are failures, surges in the network, the equipment breaks. Therefore, it is important to choose an RCD to connect the washing machine. Then you don’t have to worry that the expensive washer will fail even if you live in an old house.
RCD selection by type and power
It is recommended to put an individual RCD machine on the washing machine. Why is it important to do this in the case of a washer? Because it consumes a large amount of energy, which creates a significant load on the electrical network and wiring.
The degree depends on the type of washing machine. Washing machines with drying mode load the network the most.
RCD protects equipment from damage, and a person from electric shock. With any deviations from the norm in the network (overvoltage, circuit), an RCD is triggered. Its lever turns off, which breaks the chain.
If the user touches an accidentally exposed wire, an automatic machine will work, which will protect it from electric shock.
Principle of operation
Before deciding which machine to choose, consider its structure. RCD consists of
- transformer;
- protective housing made of plastic;
- sensor for self-testing;
- devices for breaking the circuit;
- electromagnetic cutoffs.
When a power surge occurs in the network, a device for breaking the circuit is triggered. The lever on the machine turns off, the wiring is de-energized. Which machine to put on your washing machine? Depends on the strength of the voltage. Today they release new versions that combine RCD and difavtomat. The differential circuit breaker not only serves as surge protection, but also acts as a fire switch.
The price of the difavtomat is much higher than the RCD. But it’s better to establish normal protection once than to change it later.
To choose, you need to evaluate the condition and power of the wiring.
Right choice
What kind of automatic machine is needed, and how many amperes should it pull? In the case of a difavtomat, the choice is better to make towards the device with 0.03 amp. Also, the type depends on the type of network: single-phase, three-phase. Pay attention to the labeling of devices. For a standard household network, select an RCD with the designation "C". For sockets with RCDs, the designation C16, C25 is suitable. At the same time, the most effective one is marked A. But for home use, a speaker is suitable.
Installation and Connection
Putting the circuit breaker on your own is easy. You can place it in the electrical panel. If there is not enough space, then installation is done near the washing machine, near the outlet. Only a moisture-proof outlet must be used for connection.
How to connect an electric device:
- If you connect through the shield, then pull the VVG wire to the washer - 3x2.5 mm in size.
- Take the indicator to find out where the phase is and where it is zero. An example connection diagram is shown below. Connect these wires to the difavtomat.
- After the conclusions of these wires, connect to an outlet or extension cord with an RCD.
That's all. You have installed a separate machine for the washing machine. If you want to connect more equipment, the circuit will become more complicated, since for each device you need to install a separate RCD.
More about how to connect the washing machine to the network without grounding, we described in previous articles.
If the RCD knocks out when the SMA is turned on
Why does this happen:
- The machine is defective.
- An error occurred while installing the safety device.
- The power cord of the washer shorted.
- The selected device does not match the parameters.
- The motor, heater or electronic unit of the washing machine has broken.
Take care of the safety of your family and technology today so that tomorrow you do not have to eliminate the consequences of an accident.