Circutor, S.A. - Differential relays

Team for the compulsory differential protection, with toroidal incorporated of diameter Ø 28 mm (4 cables of until 25-35 mm2). Electronic, type To superinmunizado and programmable. It has of 3 relays of exit. The first for the protection, acting on contactor or coil of shot associated to the automatic switch, and the two remaining to signpost prealarma. It visualises the escape and other events, in addition to the parameters of protection. It acts from 30 mA until 30 To in current of shot, being the retardo to the programmable shot between 0,02 until 10 s in clear-cut time. Basic application in electrical pictures, since by his dimensions and his configuration, save space and hand of work.

For applications where in addition to protection require a continuous electrical supply have of the version WRU-10 with reconexión automatic (WRU-10 RAL). The sequences of reconexión are programmable so that it can adapt to the type of load that protects. It has of three relays of exit. The main only acts on Contactor like element of cut, and the others two signpost prealarma and blockade of the system by exhaustion of reconexiones. Applications in electrical pictures of public lighting, semaphores, automatic cashiers, etc...