Single-phase solid state relay solid state relay manufacturers | | | three-phase solid state relay | | industrial solid state relays

by:Positioning     2021-04-24
Solid state relay using electronic switch, the internal circuit is triggered by the bidirectional thyristor and its composition, no contact, no arc, does not produce sparks. Because it is a non-contact switch, so suitable for dust and high working frequency. Defect is only a set of contacts, with the power situation slightly larger size, over-current and over-voltage ability is poor, cannot flow through beyond the current of rated current, breakdown electronic switch, otherwise it will lead to scrap. Solid state relay is small in size, responsive, Us level) , but poor resistance to electric shock, isolation is a bit poor, Optical coupler thing except) , large current load variation. Ordinary relay driver is simple, good isolation, short-time overload patience; The disadvantage is that: the large size ( Heavy) , the response speed is slow, As ms level) Bigger, drive the power consumption of the relay. Ordinary relay composed of coil and contactor, the use of power transformer on and off to switch circuit, can have multiple sets of contacts, instantaneous over-current and over-voltage does not affect. Bidirectional thyristor function is equal to the contact, the trigger circuit function is equal to the opening and closing coil by semiconductor device control circuit, open circuit circuit arc, spark switch moment easily, therefore, it is not suitable for high dust ( Easy to explode) And high working frequency. Solid state relay true experts, in order to your satisfaction, we really heart. If interested in our solid state relay or there is doubt, welcome your consultation.
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