VARITECTOR PU AC I with integrated fuse

Fuseless type I protection – combine operational safety and efficiency

VARITECTOR PU AC I with integrated fuse

The demands on system availability in industrial plants, buildings and power generation plants are growing. High-performance lightning and surge protection prevents cost-intensive failures and is already mandatory in many areas.

The proven surge protection devices of the VPU series type I with 25 kA are also available in versions with integrated back-up fuse. This eliminates the need for an additional back-up fuse upstream of the SPD. The combined type I+II surge protection devices have one back-up fuse per protective path and can be used universally in power distribution systems. Application-specific product configurations are available for the different network types.

The benefits at a glance

Maximum protection

Maximum protection

The surge protection devices with integrated back-up fuse offer optimum protection for power feeds due to 25 kA rated leakage current and fuse monitoring.

Low wiring costs

Low wiring costs

The dimensioning is independent of the main fuse rating, so that no additional back-up fuse is required even above 315 A. This minimises the wiring effort for all power distributions.

Compact design

Compact design

The modules have a width of only 35.6 mm per protective path and can be used in small spaces. In addition, they are pluggable and particularly easy to maintain.

Flexible use in all power distribution systems

Technical data

  • Max. continuous voltage Uc: 275 VAC
  • Discharge current Iimp: 25 kA (L-N)
  • Discharge current Iimp: 100 kA (N-PE)
  • Protection level Up: < 1500 V
  • Very low follow current, not tripping a 16 A fuse
  • Simultaneous monitoring of MOV and fuse component
  • Leakage current-free HAD technology (Homogenous Arc Distribution)

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Space saving

Optimised material handling

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Installation time

Reduced wiring by sacrificing pre-fuse

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VARITECTOR Performance

Investment protection, reliability and quality

Accessories: Phase distribution bars

Fast and save cross connection

The phase distribution bars complement the surge protection devices of the VPU series with integrated fuse from type I with 25 kA. The phase distribution bars enable various application-specific product configurations for universal use of the VARITECTOR PU AC I with integrated fuse in different grid systems.

Accessories: Phase distribution bars
  • Optimum supplement to the VARITECTOR PU AC I with integrated fuse
  • Simple installation
  • Flexible configuration of different grid systems
  • 2-, 3-, 4-, 6- and 7-pole version​

Downloads

More SPD product ranges

VARITECTOR PU AC II with integrated fuse

Reliable planning for the choice of surge protection

VARITECTOR PU AC II+III 20 S

Pluggable surge protection devices - Optimum protection in the smallest space

Terminal device surge protection VPU III

Class III SPDs for your energy grid.

RJ45 connector VDATA CAT6

The compact adapter supports Ethernet up to 250 MHz and Power over Ethernet.

Consulting & Support

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