Automatic switch with tripping mechanisms and reset rail, operating from external electromagnetic influence. Different models have two- and four-pole switches. For protection against overload and short circuit, two series-connect romania email list 1.8 million contact leads tripping devices are us: thermal and electromagnetic.
The differential protection module is trigger when a leakage current appears and switches off the power supply by affecting the rail with an electromagnetic field. In essence, it is an RCD integrat into a single unit of the machine. The module receives power from the network and is connect in series with the switches.
You can check the functionality
Of the RCD using the “Test” button, which is install on the body. After pressing it, an artificial leakage current, from which a serviceable device should be disconnect.
Differential circuit breakers differ updating router software depending on the purpose of their characteristics:
Differential circuit breaker The device consists
Electrical network type. Two-phase and three-phase devices for 2 are available for sale.
20 and 380 volts.
Current parameters. Machines differ in the magnitude of leakage and short-circuit current, as well as in the maximum load current.
Overload value. Starting ones that can withstand short-term overload up to 20 times, and regular ones that switch off at 3-5 times overload.
Protection class The device consists
This takes into account the types of currents and the time after which the circuit breaker is trigger.
Spe of response of the de-energization unit when a critical load occurs.
The device is an electronic and electromechanical mobile lead differential circuit breaker.
Operating conditions: frost-resistant models and devices for heat premises.
What is the difference between a RCD and a residual current circuit breaker?
Comparison of the sizes of RCD and residual current circuit breaker
The first difference that catches the eye even for an inexperienc user is the price. The RCD is cheaper, since it is, in fact, only part of the differential circuit breaker.
Judging by the effectiveness of protection, the difference between them is that the RCD does not break the circuit during a short circuit.