Siemens Power DistributionSiemens Power Distribution

Economical, Safe and Versatile

Our new compact Sentron 3NP1 series comes with enhanced protection for personnel and plants and a sophisticated connection system. The reach-round and touch protection incorporated as standard in the new Sentron 3NP1 series prevents users from touching current conducting parts when the devices are mounted in a busbar system, even if they need to be accessed on the rear. Thanks to the IP40 degree of protection, these fuse switch disconnectors provide reliable overload and short-circuit protection for industrial plants or infrastructure, and are suitable for use in various industries. With their compact design, they guarantee extra space in the control cabinet. Five different sizes can be supplied from 160 to 630 A. The large inspection window enables the user to recognize the fuses installed instantly. All device types can be mounted quickly and easily on mounting plates, rails, or 40 or 60 mm busbar systems.

Advantages at a glance

  • Maximum flexibility thanks to modular construction and uniform accessories

  • Extremely simple and fast assembly

  • Reduced cost and space overhead through compact size

  • Quick and safe conversion for cable outlet on top/bottom

  • Enhanced protection of personnel and plants

  • Flexible switching instants of the auxiliary switch possible (simultaneous or leading)

  • Electronic fuse monitoring function incl. network monitoring

Application areas

  • Cable feeders

  • Type-tested motor starter combinations

  • Compensation modules

  • Fuse protection (with SITOR) of frequency converters and soft starters

  • Cable distribution cabinets

  • Power distribution boards and control cabinets

  • Machines and systems

  • Compensation systems and cabinets

International standards and approvals

  • IEC 60947-1

  • IEC 60947-3

  • EN 60947-1

  • DIN VDE 0660 Part 107