Sensata / Cynergy3 RSF40 Series Horizontal Nitrile Rubber (NBR) Float Switch, 500 mm Cable, NO/NC, 240 V ac Max, 120 V

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Subtotal (1 unit)*

$76.12

(exc. GST)

$83.73

(inc. GST)

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  • Plus 5 left, shipping from 09 February 2026
  • Plus 701 left, shipping from 09 February 2026
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RS Stock No.:
845-976
Distrelec Article No.:
304-02-368
Mfr. Part No.:
RSF44Y050QF
Brand:
Sensata / Cynergy3
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Brand

Sensata / Cynergy3

Product Type

Float Switch

Mount Type

Horizontal

Switch Output

NO/NC

Housing Material

Polypropylene

Cable Length

500mm

Minimum Operating Temperature

-20°C

Maximum Operating Temperature

100°C

Maximum AC Voltage

240V

Maximum DC Voltage

120V

Maximum Current

600mA

Gasket Material

Nitrile Rubber (NBR)

Standards/Approvals

WRAS

Series

RSF40

Hazardous Area Certification

No

COO (Country of Origin):
CN

Sensata Cynergy3 Horizontal Internal Float Switch, NO/NC, 500 mm - RSF40 Series - RSF44Y050QF


Need a reliable way to monitor the level of liquids inside tanks or other receptacles? Choose this float switch from Sensata Cynergy3. The unit offers a reliable solution for basic fluid regulation, preventing overfilling, dry runs or loss of liquid. It's mounted internally through a port in the side of your container, which makes it ideal for applications where there's no top or bottom access to the tank. Its durable and chemical-resistant polypropylene construction means you can use it with a variety of fluids, including acids, alkalis and detergents.

Features and Benefits


• Suitable for use in both NO (normally open) and NC (normally closed) positions

• Silicone gasket for thermal stability and corrosion resistance in demanding applications

• Wide operating temperature range of -20°C to +100°C for use in harsh industrial settings

How do I mount this internal switch?


This switch is straightforward to install. Fit the gasket onto the float switch thread, then feed the connecting lead and the threaded portion of the float switch through the hole in the container from the inside. Feed the fixing nut over the connecting lead and tighten the nut until secure.

Cynergy3 Horizontal Float Switches


Cynergy3 offers wide range of horizontal switches which are WRAS approved and have low-cost compact design. These horizontal float switches consist of a reed switch and a pivoted actuator magnet and can be used for N/O or N/C operation. The switch action can be reversed by mounting the float switch with the float able to move upwards away from the body instead of downwards.

WRAS approval explained


WRAS is the standard against waste, misuse, undue consumption or contamination of the water supply and must have an appropriate quality and standard.

What materials can you choose from?


• Nylon

• Polypropylene

• Polypropylene Sulfide (PPS)

Features and Benefits


• Operating temperature: -10 °C to +120 °C

• N/O or N/C Switch output

• Switch action may be reversed by rotating the switch through 180º

• Choice of gasket materials: Silicone, Nitrile, Viton or combination of Silicone & Nitrile

• Flying Lead

• M12 plug connection

• Internal & external fitting inside a tank

UL recognised

Typical Applications


These Cynergy3 Horizontal Switches are most likely to be used in vending machines, commercial washing machines and evaporator units.

Note

Suitable for signal switching and for use with transistorised input/low power, suppressed coil miniature relays. Not suited for any inductive or inrush (e.g. filament lamps) loads.

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