Working of basic elements in the dashboard
The operation of the basic elements in a typical dashboard is described below:
Current circuit breakers | go to category
They protect the installation by disconnecting the circuit when the current flowing in this circuit is too high (this may be caused by, for example, overload or short circuit). Each circuit breaker is manufactured with strictly defined breaking characteristics. They determine how quickly the circuit will be disconnected at a given multiple of the rated current (we offer overcurrent circuit breakers with B< /a>, C, D and other). Individual activation times are presented in the following characteristics:
Residual current circuit breakers | go to category
They protect people against electric shock and protect installations against fire. They disconnect the system after detecting that the current flowing out of them is not equal to the current flowing in. The differential needed to open the fuse is called differential current. shock protection are characterized by a differential current up to 30mA. Higher values characterize fuses protecting against fire. Among the RCD circuit breakers, the following types can be distinguished:
- AC – are triggered only with sinusoidal currents
- A – they are triggered by sinusoidal and pulsating single-wave currents
- B – they are triggered by sinusoidal alternating, pulsating and constant currents
Surge arresters | go to category
They protect the installation against the effects of overvoltages (e.g. due to lightning strikes) by limiting the duration of the follow current.
Contactors | go to category
They make it possible to switch on or off a circuit or multiple circuits using current (not mechanically, but by applying voltage to the coil). Depending on the specific model, the activated coil can be DC or AC.
Timers | go to category
They are used to turn the circuit on or off after a set time (with a delay)
controls| go to category
They are used to signal whether a given circuit is switched on.
