Standard float switch Ø12 mm

Individually configurable

Standard float switches from hlm elektronik – robust, flexible, and proven.
Our standard series with a 12 mm riser tube is suitable for diverse applications and offers reliable level detection with more installation space. Available with 1, 2, or multiple switching points – for maximum adaptation to your requirements.

Advantages & Materials at a Glance

Standard Float Switch

SF1K-R4

Output type: Reed contact
Mounting type: D75mm Flange
Installation: from the outside
Housing material: PVC
Contact form: C
Connection type: Connector DIN 43650
Ambient temperature: –5 °C to +60 °C
Installation depth: L100 mm
To the product

Standard Float Switch

SF1M-N3

Output type: Reed contact
Mounting type: D75mm Flange
Installation: from the outside
Housing material: 2.0321
Contact form: C
Connection type: Connector DIN 43650
Ambient temperature: –5 °C to +60 °C
Installation depth: L100 mm
To the product

Standard Float Switch

SF1N-L1

Output type: Reed contact
Mounting type: D75mm Flange
Installation: from the outside
Housing material: 1.4571
Contact form: C
Connection type: Connector DIN 43650
Ambient temperature: –5 °C to +60 °C
Installation depth: L100 mm
To the product

Standard Float Switch

SF2M-L1

Output type: Reed contact
Mounting type: Housing
Installation: from the outside
Housing material: 2.0321
Contact form: C
Connection type: Housing
Ambient temperature: –5 °C to +60 °C
Installation depth: L100 mm
To the product

Standard Float Switch

SF2N-L1

Output type: Reed contact
Mounting type: Housing
Installation: from the outside
Housing material: 1.4571
Contact form: C
Connection type: Housing
Ambient temperature: –5 °C to +60 °C
Installation depth: L125 mm
To the product

Standard Float Switch

SF2N-N3

Output type: Reed contact
Mounting type: Housing
Installation: from the outside
Housing material: 1.4571
Contact form: C
Connection type: Housing
Ambient temperature: –5 °C to +60 °C
Installation depth: L100 mm
To the product

Standard Float Switch

SF3K-R4

Output type: Reed contact
Mounting type: D75mm Flange
Installation: from the outside
Housing material: PVC
Contact form: C
Connection type: Connector DIN 43650
Ambient temperature: –5 °C to +60 °C
Installation depth: L100 mm
To the product

Standard Float Switch

SF3M-P2

Output type: Reed contact
Mounting type: 75mm Oval Flange
Installation: from the outside
Housing material: 2.0321
Contact form: C
Connection type: Connector DIN 43650
Ambient temperature: –5 °C to +60 °C
Installation depth: L100 mm
To the product

Standard Float Switch

SF3N-N3

Output type: Reed contact
Mounting type: 75mm Oval Flange
Installation: from the outside
Housing material: 1.4571
Contact form: C
Connection type: Connector DIN 43650
Ambient temperature: –5 °C to +60 °C
Installation depth: L100 mm
To the product

Standard Float Switch

SF5N-N3

Output type: Reed contact
Mounting type: Flange DIN 2527
Installation: from the outside
Housing material: 1.4571
Contact form: C
Connection type: Housing
Ambient temperature: –5 °C to +60 °C
Installation depth: L100 mm
To the product

Standard Float Switch

SF6N-N3

Output type: Reed contact
Mounting type: Flange DIN 2527
Installation: from the outside
Housing material: 1.4571
Contact form: C
Connection type: Housing
Ambient temperature: –5 °C to +60 °C
Installation depth: L100 mm
To the product

Standard Float Switch

SP1M-N2

Output type: Reed contact
Mounting type: Pg9
Installation: from the inside
Housing material: 2.0321
Contact form: C
Connection type: Cable PVC
Ambient temperature: –5 °C to +60 °C
Installation depth: L100 mm
To the product

Standard Float Switch

SP1N-L1

Output type: Reed contact
Mounting type: Pg9
Installation: from the inside
Housing material: 1.4571
Contact form: C
Connection type: Cable PVC
Ambient temperature: –5 °C to +60 °C
Installation depth: L100 mm
To the product

Standard Float Switch

SP1N-N2

Output type: Reed contact
Mounting type: Pg9
Installation: from the inside
Housing material: 1.4571
Contact form: C
Connection type: Cable PVC
Ambient temperature: –5 °C to +60 °C
Installation depth: L125 mm
To the product

Standard Float Switch

SR1K-K2

Output type: Reed contact
Mounting type: G 3/8
Installation: from the inside
Housing material: PVC
Contact form: C
Connection type: Cable PVC
Ambient temperature: –5 °C to +60 °C
Installation depth: L100 mm
To the product

Standard Float Switch

SR1M-N2

Output type: Reed contact
Mounting type: G 3/8
Installation: from the inside
Housing material: 2.0321
Contact form: C
Connection type: Cable PVC
Ambient temperature: –5 °C to +60 °C
Installation depth: L125 mm
To the product

Standard Float Switch

SR1N-N4

Output type: Reed contact
Mounting type: G 3/8
Installation: from the inside
Housing material: 1.4571
Contact form: C
Connection type: Cable PVC
Ambient temperature: –5 °C to +60 °C
Installation depth: L100 mm
To the product

Standard Float Switch

SR1N-P2

Output type: Reed contact
Mounting type: G 3/8
Installation: from the inside
Housing material: 1.4571
Contact form: C
Connection type: Cable PVC
Ambient temperature: –5 °C to +60 °C
Installation depth: L125 mm
To the product

Standard Float Switch

SR3K-P2

Output type: Reed contact
Mounting type: G1
Installation: from the outside
Housing material: PVC
Contact form: C
Connection type: Connector DIN 43650
Ambient temperature: –5 °C to +60 °C
Installation depth: L100 mm
To the product

Standard Float Switch

SR3N-P2

Output type: Reed contact
Mounting type: G1
Installation: from the outside
Housing material: 1.4571
Contact form: C
Connection type: Housing
Ambient temperature: –5 °C to +60 °C
Installation depth: L100 mm
To the product

Standard Float Switch

SR4K-K2

Output type: Reed contact
Mounting type: G2
Installation: from the outside
Housing material: PVC
Contact form: C
Connection type: Housing
Ambient temperature: –5 °C to +60 °C
Installation depth: L150 mm
To the product

Standard Float Switch

SR4N-N3

Output type: Reed contact
Mounting type: G2
Installation: from the outside
Housing material: 1.4571
Contact form: C
Connection type: Housing
Ambient temperature: –5 °C to +60 °C
Installation depth: L100 mm
To the product

Standard Float Switch

SR6K-L1

Output type: Reed contact
Mounting type: G1.5
Installation: from the outside
Housing material: PVC
Contact form: C
Connection type: Plug
Ambient temperature: –5 °C to +60 °C
Installation depth: L100 mm
To the product

Standard Float Switch

SR6N-N2

Output type: Reed contact
Mounting type: G1.5
Installation: from the outside
Housing material: 1.4571
Contact form: C
Connection type: Housing
Ambient temperature: –5 °C to +60 °C
Installation depth: L100 mm
To the product

All advantages & materials at a glance

Robust & flexible all-around: 12 mm dimensioning and modular design for industrial requirements

Low-energy & maintenance-free: Reed contacts operate without auxiliary power and with low wear

Easily adaptable: Contact functions, materials, and lengths freely selectable

High-precision switching point positioning: Exact limit value detection through tight tolerances and reproducible geometry
Scalable: Longer tubes, multiple switching points, or analog outputs possible (e.g., with extended configuration)

Versatile Configuration – Tailored to Every Application

Several variants are available for maximum adaptability:

  • 1 switching point – for simple level detection
  • 2 switching points – for simultaneous monitoring of minimum and maximum levels
  • More than 2 switching points – for sophisticated, multi-stage level controls

Material selection for various media

To ensure maximum compatibility and longevity, we offer this series in several high-quality materials:

  • PVC – robust and economical
  • PP (Polypropylene) – versatile and chemically resistant
  • Stainless Steel – durable, temperature and pressure resistant
  • Brass – durable, stable, and ideal for numerous standard applications

This allows the selection of the appropriate material for almost any environment – reliable, flexible, and field-proven.

Fancy a project? Or just a question?

Do you have a specific application, need technical advice or would you simply like to make a non-binding inquiry? We are here for you – personally, directly and quickly.

Call us

+49 (0) 5702 8391 0

Send us an email

info@hlm-elektronik.de

Non-binding inquiry:

Contact us now