Level Sensors

Float Switch Type TA

Part No. FMO

Zur Grenzstanddetektion von Flüssigkeiten

The float switch is made for liquid level monitoring and is appropriate for direct pump control in all industrial applications.

  • Easy to install
  • Cost-efficient
  • Suitable for any installation position
  • No response delay
  • Maintenance-free
  • Reliable
  • High switching capacity
  • Ex approval for Zone 1
  • according to ATEX (optional)


General Description

The switch can be used e. g. as minimum, maximum, filling, emptying contact as well as for protection against overflow or idle running. It can be installed directly in tanks using a screw joint or can be inserted into open tanks from the top. If inserted from the top, the switching point is determined by using a ballast weight. The float switch enclosure is made of robust plastic material. The micro switch is encapsulated completely water-tight. Moreover the unit consists of several air chambers.
Therefore it is almost unsinkable even if damaged mechanically.


Typical float switch applications

Dry run protection for pump controls

Min. or max. alarm

Filling and draining control

Emergency shutdown

Redundant measurements for other systems

Extra messages

Activation of other metering systems

and many more



Technical Data

1 potential-free changeover contact, loadable up to 230 V AC / 5 A (Ex: 0.2 A at max. 30 V)

Storage temperature

−10 °C bis +70 °C

Operating temperature

−5 °C to +60 °C


II 2 G Ex ib IIB T4



  • Material: ABS
  • Weight: 345 g
  • Ballast Weight: 300 g (the float switch standard supply always includes a ballast weight)
  • Protection: IP 68
Change over contact


Installation Position


  • Length: 5 m, 10 m and 20 m
  • Material: Butyl rubber
  • Type: high-flexible, 3 x 0.75²


Specifications subject to change.


Data Sheet Float Switch Type TA

EG Baumusterprüfbescheinigung Grenzstandsonden

EG Baumusterprüfbescheinigung Grenzstandsonden und Überspannungsschutzelemente

System Products
Related Products

Haven't found the appropriate product?

Product Consultation

You want to have best information about our products? Our experts will gladly develop together with you the best system solution for your application.


You have questions about your NIVUS products in use? Our service hotline will readily support you.

We are glad to have you here! For any question regarding water or digitisation we are happy to answer you call or your email message.
Im Täle 2
75031 Eppingen