Schneider Electric USA Website

Welcome to our website.

Select your location

Welcome the the Schneider Electric French website. It looks like you are located in the United States, would you like to change your location?

Traduisez en francais

TeSys DF and LS1

Fuse carriers from 25 A to 125 A, up to 690 V

Part of TeSys

Short-circuit protection of any low-voltage electric installation: control circuits, transformers, motors, etc.

TeSys DF and LS1
  • Features

    TeSys DF
    • Fuses from 25A to 125A
    • Compact size helps to reduce the overall size of the installation.
    • Ergonomic handle for easier opening.
    • Version for Class CC fuses
    • Cylindrical cartridge fuses: 8x32, 10x38, 14x51 and 22x58 up to 690V, from 25 to 125Amps
    • LED blown fuse indicator
    • Dual position locking system for easy DIN-rail mounting
    • Multi-pole configurations 1P, N, 1P+N, 2P, 3P, 3P+N
    • Certifications: IEC 60947-3, UL512 and CSA, RoHS compliant
    • Protection against direct finger contact
    TeSys LS1
    • 45 mm wide mounting dimensions, matching TeSys starters and contactors
    • Accepts Class CC fuses (such as Bussmann FNQ-R or KTK-R)
    • US Fuse Types CC, KTK-R
    • European Fuse Types aM, gG
    • Rated 30A, 600 Vac, 3 phase
    • Uses screw clamp terminations (spring terminal version under development)
    • Connects to LC1D09 through LC1D38 contactors (with use of GV2AF3 connector or GV2AF4)
    • Meets application needs for fusible starter


    Simple and effective protection!

    Fuse protection is a reliable and effective solution to protect your low voltage equipment against short-circuits that can cause major damage to your installations and generate risk for equipment and personnel, as well as significant production.


Support Center

Discover Tools, Calculators, Training and access to Customer Support.

Products A - Z

Browse a list of all Schneider Electric products, including legacy products.