The current for circuit breakers is call nominal. If it is exceed, the switch will turn off, although not immediately –
this is discuss below in the time-current characteristic
Circuit breakers may have the same nominal lithuania email list 283108 contact leads load power rating,
but the power consumption characteristics of the devices may be different.
The power consumption may be uneven
Varying depending on the type and load, as well as when switching on, off or continuously operating a particular device.
Fluctuations in power consumption can be quite significant, and the range of their changes is wide. This leads to the machine being understand how the ppc (sponsored links) strategy works switch off due to the nominal current being exceed,
which is consider a false network shutdown.
To eliminate the possibility of inappropriate operation of a fuse during non-emergency standard changes (increase in current,
change in power), circuit breakers with specific time-current characteristics (TCC) are us.
This allows the operation of switches
With the same current parameters with arbitrary permissible loads without false tripping.
The VTX show how long it will take for the switch
to operate and what the ratio of the current strength to the direct current of the circuit breaker will be.
Features of machines with philippines numbers characteristic B Time-current characteristic
The machine with the specified characteristic switches off within 5-20 seconds. The current indicator is 3-5 nominal currents of the machine. These modifications are use to protect circuits that feed standard household appliances.
Most often, the model is used to protect the wiring of apartments and private houses.
Characteristic C – Operating Principles
The machine with the nomenclature designation C switches off within 1-10 seconds at 5-10 nominal currents.
Switches of this group are used in all areas – in everyday life, construction,
industry, but they are most in demand in the area of electrical protection of apartments, houses, and living spaces.
Operation of switches with characteristic D Time-current characteristic
Class D circuit breakers are used in industry and are represented by three-pole and four-pole modifications. They are used to protect powerful electric motors and various 3-phase devices.
