NST Float Level Switch

Brand: KOBOLD Instruments, Inc.

The float comprises a hollow cylinder or a ball with integrated Reed contact.

The switch is supplied as a changeover contact; it can be connected as a N/O contact or N/C contact as an option. The contact switches when the liquid passes above or below the horizontal float position.

The switch point is set either by the side installation at the desired height, clamping at the desired level or when installed from the top weights attached to the cable.



  • Hot, Extremely Aggressive or Dirty Liquids

BSP Connection

  • G 1/2"
  • G 2"

Cable Length

  • 6.56 feet (2 metres)

Cable Material

  • FEP
  • PTFE
  • Silicone Sheathed Cable
  • Thermoplastic Rubber

Electrical Contacts

  • N/C Contact
  • N/O Contact
  • Reed Contact

Electrical Rating

  • 4-250 Vac/dc / 1 mA to 1 A / 60 VA

Enclosure / Body Material

  • PTFE - Float & Bellows

Environmental Protection

  • IP68


  • 3.94" (100 mm)

Maximum System Pressure

  • psi: 14.5 (kPa: 100, bar: 1)


  • Aggressive Liquids


  • Side Mounting

Operating Temperature

  • Maximum

Switch Type

  • Normally Open & Normally Closed

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