GN 848 Float switch for level monitoring


ELESA original design
code: HFLT-E

Product description


Float switches GN 848 can be used to monitor fluid levels by activating an electrical switching contact as soon as a defined filling level is exceeded or falls below a defined mark.

The desired level at which the switching point is to be reached is determined by the length of the float rod. With the float removed, this rod can be shortened; a scale for oil or water facilitates determining the exact length.

The top end of the float rod features a magnet which activates a reed contact when the appropriate position is reached, irrespective of the medium to be monitored.

Depending on the installation position of the magnet in the float rod, either the make contact (NO) or the break contact (NC) may be operated. When delivered, the magnet is set for operating the make contact (NO).


Float rod
Plastic (Polyamide PA)
  • temperature resistant up to 80 °C
  • grey

Sealing ring
Type A: O-ring NBR (Perbunan)
Type B: Flat seal TPE

Socket cap screws DIN 912
Steel, zinc plated

RoHS compliant

On request

Float switch with longer float rod

Technical drawing

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GN 848 Float switch for level monitoring sketch

Article options / Table


Awith thread
Bwith clamping flange
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Type A

Type B
Type A
Type B
d4l2suitable for level l ≈

4555235G 3/426,5 (G 3/4)235075250
4555360G 133,5 (G1)306085360

Build & Price

Diameter d1
Length l1

Selected Part (How to order)

Weight: 0,300 kg
If this article is new in our product range, it may happen that details concerning weight are as yet not listed.
If you do need weight details, please contact our Sales Department!
Phone+49 7723 6507 - 0
RoHS compliant: Yes
This article conforms to RoHS, which means it complies with EU Directive 2011/65/EU for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).
Please note our quantity discounts.
With a total value (net) per order:
from 150 Euro -> 10 % discount
from 250 Euro -> 20 % discount
from 350 Euro -> 30 % discount
All prices in accordance with our price list No. 51, valid from 1 February 2018, plus VAT only valid for Germany.

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