JW Winco

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GN 650.3 Oil level indicators with electrical oil level monitoring


ELESA original design
code: HCX/E

Product description


By using the oil level indicators GN 650.3 the liquid level cannot only be seen but an electrical impulse can also be transmitted when the oil level has dropped below a specified limit.

For this purpose there is a magnetic float in the indicator which at a specified liquid level (liquid min. level) will close or open a contact in a REED switch.

The polyamide body consists of two parts which are ultrasonically welded together.

Oil level indicators GN 650.3 can also be used in pressurised containers. Pressure test results regarding resistance under pressure are available.


Body Plastic
crystal-clear Polyamide (PA-T)
  • ageing resistant
  • high mechanical strength
  • temperature restistant up to 90 °C
  • solvent resistant,
    but not suitable for alcohol
  • avoid contact with hot water

  • white lacquered
  • with two black marking lines

Float Plastic

O-rings rubber NBR (Perbunan)

Set screw, hexagon nut,
serrated lock washer
Steel, zinc-plated, blue passivated


Technical drawing

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GN 650.3 Oil level indicators with electrical oil level monitoring sketch

Article options / Table


NONormally open
NCNormally closed
Show / Hide columns
l1bdhkl2l3l4l5l6l7l8s ≈
max. Wall thickness
12731M 1240502310116913252032,512
25431M 1240502322829513252032,512

Build & Price

Open 3D configurator
Distance of the screws l1

Electrical specifications

max. switching voltage /
max. switched current:

150 Vac, 100 Vdc / 1 A (NO)
150 Vac, 150 Vdc / 2 A (NC)

max. switching capacity:

10 W (NO) / 20 W (NC)

Connector plug:

DIN EN 175301-803 Type C

Protection class:

IP 65

Cable gland:

PG 7, for cable-Ø from 6 to 7 mm

max. cable cross-section:

2 x 1,5 mm²

Caution: Magnet fields impair the proper function!

Drawing electrical specification GN 650.3

Assembly sequence for cable connection

Drawing Assembly sequence GN 650.3

1. Loosen the fixing screw and pull off the connector plug.

2. Push the contact holder out off the connector casing.

3. Loosen the cable gland, feed the cable through the connector casing and connect to the contact holder.

4. Push the contact holder back into the connector casing and tighten the cable gland for strain relief grip / seal.

5. Push the connector plug over the contacts of the oil level indicator and secure with fixing screw.

Assembly instructions

Drawing Assembly instructions GN 650.3

Two 12,5 Ø bore holes in the container wall are sufficient to mount the GN 650.3 oil level indicator with nuts.

The oil level indicator can also be mounted directly, i.e. without nuts, if the container wall has two M12 threads.

Selected Part (How to order)

Total (net)
plus VAT 14,28 €
gross 103,50 €
In stock
Weight: 0,159 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: Yes
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/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 175,00 € -> 10 % discount
from 275,00 € -> 20 % discount
from 375,00 € -> 30 % discount
With a total value (net) per order:
All prices in accordance with our price list No. 52, valid from 1 May 2019, plus VAT only valid for Germany.

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