Product Overview

The RSF66 float switch series is designed to offer a variety of switching options for diverse system requirements. Manufactured from PPS (Polyphenylene Sulphide), these switches are compatible with a wide range of liquids. Single float versions are typically used in systems with PLC control, while dual float versions are suitable for controlling the filling or emptying of tanks via electromechanical relays. Key features include high and low level switching, PPS material construction, and versions for filling or emptying control. Many variants are UL recognized components, and the series holds WRAS and NSF approvals. All electrical ratings are for resistive loads only.

Product Attributes

• Brand: Sensata
• Series: RSF66
• Material: PPS (Polyphenylene Sulphide)
• Color: Grey
• Origin: Made in the UK
• Certifications: UL recognised components (File No. E171218), WRAS Approved, NSF Approved, ISO9001 CERTIFIED

Technical Specifications

Specification	Value
Temperature Range (C)	-10/+85
Temperature Range (F)	+14/+185
Minimum Liquid SG	0.85
Standard Cable Length	100cm
Switching Power Max (VA)	25
Switching Voltage Max (AC)	240
Switching Voltage Max (DC)	120
Switching Current Max (A)	0.6
Single Float Versions
Model	Upper Switch Level | Lower Switch Level | Total Length
RSF66A25B75	30mm | 75mm | 102mm
RSF66A25B100	30mm | 100mm | 127mm
RSF66A25B125	30mm | 125mm | 152mm
RSF66A25B150	30mm | 150mm | 177mm
RSF66A25B175	30mm | 175mm | 202mm
Dual Float Versions
Model	Control Type | Upper Switch Level | Lower Switch Level | Total Length
RSF66A50A100	Emptying Control | 50mm | 100mm | 134mm
RSF66A50A150	Emptying Control | 50mm | 150mm | 184mm
RSF66B50B100	Filling Control | 50mm | 100mm | 127mm
RSF66B50B150	Filling Control | 50mm | 150mm | 177mm

Custom versions can be made for particular applications. Please contact Sensata with your requirements.