Standard float switch Ø12 mm

SF3N-N3-13-0-S

Article number 8613316014
  • Completely made of stainless steel: Housing and float made of 1.4571
  • Pressure-resistant: Suitable for applications up to 25 bar
  • External mounting via 75 mm oval flange and DIN-43650 connector
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Data sheet
Operating instructions
Technical data
Customizing
Technical drawing

This standard float switch with a Ø12 mm switch tube is designed for applications requiring high mechanical load capacity and corrosion-resistant materials. The housing and float are made entirely of stainless steel 1.4571, allowing the sensor to be reliably operated in industrial and pressurized liquids. The proven reed technology operates without continuous current and enables durable, precise level detection. Vertical installation is carried out via an external 75 mm oval flange, while the standardized DIN 43650 connector provides a secure and fast electrical connection.

Installation depth: L100 mm
Output type: Reed contact
Contact form: C
Operating temperature: –5 °C … +60 °C
Connection type: Connector DIN 43650
IP protection class: IP 65 (DIN VDE 0470 T1)
Switching capacity max.: 60 VA
Switching current max.: 1.0 A
Switching voltage max. VDC: 250 V
Continuous current max.: 2.0 A
Thread / Mounting type: 75 mm oval flange
Installation: from the outside
Housing material: 1.4571
Float material: 1.4571
Approval: CE
Mounting: vertical
Immersion depth float: 32 mm ±2 mm (at density 1 g/cm³)
Pressure float max.: 25 bar
Density float: approx. 0.65 g/cm³ ±10%

Approval

EC Conformity 2014/35/EU Low Voltage Directive

Connection head

The connection head can range from a simple cable outlet to an R2” thread.

Housing

We also carry flanges in standardized sizes, with or without housings.

Versions

Stainless steel (WNr. 1.4571), brass (WNr. 2.0321) and PVC versions

Length

Switch tube up to 1m length

Shape

Straight or curved versions

Material

The materials of the float bodies vary from PVC, PP, POM, PVDF, NBR to stainless steel, depending on the requirement.