Standard float switch Ø12 mm

SF3K-R4-13-0-S

Article number 8613333003
  • Powerful: 60 VA switching capacity for versatile applications
  • PVC housing with NBR float for water and oil-based media
  • Practical: External mounting via D75 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 switching tube is designed for applications requiring robust external mounting and precise level signals. The resistant PVC housing in combination with an NBR float is ideally suited for water-based and slightly oily media. The reliable reed technology operates without continuous current and enables durable, low-interference level detection. Vertical installation is carried out externally via a D75 flange, while the standardized DIN-43650 connector ensures quick, secure 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: D75 mm flange
Installation: from the outside
Housing material: PVC
Float material: NBR
Approval: CE
Mounting: vertical
Immersion depth float: 19.5 mm ±2 mm (at density 1 g/cm³)
Pressure float max.: 15 bar
Density float: approx. 0.44 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.