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E4-NH-Fuse-Switches, vertical design and Fuse-Rails

EFEN E<sup>4</sup>-NH-Fuse-Switches, vertical design and Fuse-Rails

Smart solution for the power distribution

The requirements for energy distribution in terms of usage, functionality and structures are ever changing. Power grids are subject to the severe deviations in energy flow caused by renewable sources. In the future, grids will also be challenged by electric vehicles drawing power at charging stations.

The E4-series is a standardized device series for the power distribution offering the basic requirements for a smart energy distribution grid. The core element of those smart energy distribution grids is the recording and evaluation of performance data. The E4 products offer the opportunity to record the data easily and conveniently. Years of experience and technical specification have gone into the development of this series in order to achieve the optimum result in terms of technical values and safety. A perfect interface for your energy distribution which can be upgraded to the various requirements at a later date.

E4-NH-Fuse-Switches, vertical design


Parallel switching splits the arc which increases the durability of the system. The new overreach protection offers the user even more saftey.


The E4 is the flattest fuse switch vertical design on the market with an installation depth of 175 mm. Also in use as a twinrail.


The new design improves heat dissipation and thus, mounted electronics are additionally protected.


Recording and forwarding energy data: the new MEM module makes it possible. Simply snap it on, attach the plug connections, and you‘re done.


Low-voltage current transformers can be retrofit at the rear of the E4-Fuse-Rails by simply pushing them onto the feed terminals.



Low-voltage current transformers can be retrofit at the rear of the E4-Fuse-Rails by simply pushing them onto the feed terminals.


NH-fuse-rails with multi-useterminal (bolt M12) or V2N terminal


The optional safety cover provides optimal protection against accidental contact from the front


The wiring routing at the rearfrom of the E4-Fuse-Rails can be optimized by optional wiring brackets