NV Level Switch

Brand: KOBOLD Instruments, Inc.

The KOBOLD level switch model NV is a reasonably-priced compact instrument for monitoring levels. A stainless steel cylindrical float attached to one end of a balance arm moves up and down with the liquid level.

The motion of the float is transferred to a permanent magnet fitted at the other end of the balance arm.

The permanent magnet switches a reed contact that is fitted in a sliding tube outside the medium. The tube is set as a N/O contact at the factory, that is, the contact closes when the level rises. The switching function is reversed by moving the tube.

The instruments are delivered in standard sleeves for side installation. PTFE tape is used to seal the switch.



  • Car Washes
  • Cleaning Machines
  • Heating Boilers

Approvals & Certifications

  • ATEX
  • cCSAus
  • CE

BSP Connection

  • G 3/4"

Cable Material

  • Polyurethane (PUR)
  • PVC
  • Silicone Sheathed Cable

Connection Material

  • 304L Stainless Steel
  • Brass, ms 58

Electrical Connectors

  • M27×1.5
  • PVC Cable

Electrical Contacts

  • Bistable Reed Contact
  • Changeover Contact
  • Normally Closed
  • Normally Open

Electrical Rating

  • 150/40 Vac, 0.13/0.5 A, 20 W - Changeover Contact
  • Maximum

Enclosure / Body Material

  • 304L Stainless Steel
  • Brass, ms 58

Environmental Protection

  • IP65


  • 0.315" (8 mm)

Materials of Construction

  • 301 Stainless Steel - Balance Aram & Float
  • Polyamide - Contact Tube

Maximum System Pressure

  • psi: 232.1 (bar: 16, kPa: 1,600)

Mounting Position

  • Horizontal

Operating Temperature

  • Maximum


  • Maximum

Seat / Seal Material

  • FPM
  • NBR

Sleeve Material

  • 304 Stainless Steel
  • Brass, ms 58

Spring Material

  • 301 Stainless Steel

Switch Type

  • changeover Switch
  • Normally Open or Normally Closed

Show More