Cynergy3 RSF57 Series

Cynergy3 RSF57 Series

The RSF57 internal fitting Polyvinylidene Fluoride (PVDF) float switches are part of the RSF50 series offering compact design and a number of options including choice of maximum power (25VA or 100VA), mounting (1/8" mounting thread or M12 connector) and viton or nitrile gaskets. The RSF57 switches can be mounted either from the bottom or from the top of the tank and therefore access to the inside of the tank is required. The switch action may be reversed by removing the float, inverting it and refitting to the stem. The RSF57 float switches are NSF and UL approved and can be operated in temperature range between -10°C and +105°C.

  • Compact Internal Fitting Float Switches
  • Green PVDF body (see Chemical Compatibility sheet in Technical library for suitability with liquid media)
  • Supplied with 100cm PTFE 7/0.2 leadouts
  • Switching action reversible by inverting the float
  • Selection of maximum power rating - 25VA or 100VA
  • Temperature range between -10°C and +105°C
  • Selection of 1/8" NPT mounting thread or M12x1.75 electrincal connection
  • Options with M12 connector are offered with a selection of nitrile or viton gaskets

Typical applications for the Cynergy3 RSF50 series of float switches include:

  • Size sensitive applications
  • Vending machines
  • Printing machines
  • Chemical dosing equipment

Customisation is available on this product - speak to our technical sales team to discuss your requirement.

The below table gives the full specifications for the Cynergy3 RSF50 series including the RSF57 switches:

Cynergy3 RSF50 series specifications
Additional Features
  • Polyvinylidene (PVDF) Compact Internal Fitting Float Switch Series
  • Compact design for size sensitive applications
  • Supplied with 100cm PTFE 7/0.2 leadouts with nitrile or viton gaskets (gaskets are only supplied with M12 connector option)
  • NSF and UL approved
Colour Green
Configuration Vertical
Connection Type
  • 1/8" NPT mounting thread
  • M12 Connector
Contact Form Normally-open (can be reversed by inverting and refitting the float)
Maximum Power Rating
  • 25VA
  • 100VA
Operating Temperature -10°C to +105°C

Below is a list of available part numbers within the Cynergy3 RSF50 Float Switch Series:

Cynergy3 RSF50 Series ordering information

This product is available fully compliant to the RoHS EU directive 2011/65/EU.

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  • Product Code: Cynergy3 RSF57 PVDF Internal Fitting Float Switch Series
  • SKU: Cynergy3 RSF57 PVDF Internal Fitting Float Switch Series
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Available Options

Tags: RSF57, RSF57H100GC, RSF57H100G1/8, RSF57Y100GC, RSF57Y100G1/8, RSF57H100GB, RSF57Y100GB