In praxis, devices controlled by PLC (Programmable Logic Controller) are usually connected in groups, protected by some of the standard circuit breakers, while this common circuit breaker is rated to a value sufficient for overall current. Number of circuit breakers is reduced from economical reasons as well as increased complexity of a distribution box. To one circuit breaker are thus usually connected more devices controlled by an appropriate interface (EMR or SSR module). Possible overcurrent of a blocked AC valve or a motor can often stay unrecognized, as a circuit breaker is rated to a higher current. Moreover, if it will show after some time, that some of peripherials are necessary to be protected separatelly, a problem with a lack of space in a distribution box may occur.
These drawbacks are eliminated in a module Finder Master Plus, which can be equipped with a fuse module for a standard 20x5mm fuse. Fuse module is delivered separately and the internal electrical link allows relay interface module to be used also without a fuse module. Condition of the fuse is easily visible through a window. At width of a relay module only 6,2 mm, it is an interface with an individual protection, occupying only a minimum space on the rail. Interconnections in a distribution box can be further simplified and be more transparent thanks to a possibility to use interconnection jumper links. Finder Master Plus 39.3x are available in several versions, EMR or SSR, at the type 39.3x.3 also with a leakage current suppression.
Here you can download a Finder S39 datasheet.
For further information about prices and delivery terms please contact us at info@soselectronic.com
- switching and protective element integrated into one component
- increased functional reliability and resistance against interference and overcurrents
- additional fuse module doesn´t require next space on a DIN rail
- easy visibility of the fuse condition through the window
- output EMR 6A/250V AC, or SSR 2A AC/DC
- a version with leakage current suppression available
- width only 6.2 mm
- jumper links available for easy connecting
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