In industrial facilities, private and public buildings as well as in systems for regenerative energy generation, the power distribution systems must be equipped with suitable surge protection.
The proven surge protection devices of the VPU series are now also available in variants with integrated fuses. This eliminates the need for an additional fuse before the SPD. The combined type II+III surge protection devices have one back-up fuse per protective path and can be used universally in power distribution systems.
The surge protection devices with integrated fuse offer optimum protection thanks to 20 kA rated discharge current and 40 kA maximum discharge current.
Dimensioning is independent of the main fuse rating – no additional pre-fuse is required, even above 315 A. The wiring effort is reduced to a minimum for all energy sources. The wiring effort can thus be minimised for all power distributions.
The pluggable and thus particularly maintenance-friendly arresters have a width of only 18 mm per protective path.