RSF20 SERIES LOW LEVEL SWITCH FOR BOILING WATER The RSF20 is designed to eliminate the problems associated with limescale build up around the pivot point on a conventional float switch. This particular series is primarily for applications where a low level condition has to be monitored, in a system where the liquid is usually maintained at a high level, or where a wider differential is required between the opening and closing levels. The extended drop float actuator allows the switch housing and float pivots to be located above the surface of the liquid, while the excess buoyancy of the float chamber itself ensures that it floats, even when scale builds up on the float chamber. Typical applications include wall kettles and hot vending machines. Features The switch is closed when the level is low (float down) and opens as the Pivot out of liquid liquid level rises. Low level switch position Many WRAS (approved for use in hot & cold water) and NSF approved Versions are available with either flying leads or M12 circular connector. variants Many variants are UL recognised components File No. E171218 Optional plug and cables assemblies are available for use with M12 Flying lead or M12 connector connection versions. SPECIFICATIONS Technical Electrical Polyphenylene 25W 100W Material (Y code) (H code) Sulphide (PPS) N/C N/C Contact Form Grey Colour VA 25 100 Switching Power Max -10/+120* Temp. Range C V 240 300 Switching Voltage AC Max F +14/+248* Switching Voltage DC Max V 120 300 0.80 Minimum Liquid SG A 0.6 1 Switching Current Max 125mm Must Close Level (SG=1) 85mm All ratings are for resistive load only. Must Open Level (SG=1) * Maximum temperature requires ETFE cable to be specified. Page 1 Copyright 2021 Sensata Technologies, Inc. www.sensata.comSTANDARD PARTS Material Approvals Max Power Leadouts Gasket RSF26H050TG PPS WRAS, UL & NSF 100VA 50cm ETFE 19/0.2 Viton RSF26H100RF PPS WRAS, UL & NSF 100VA 1 metre PVC 16/0.2 Nitrile RSF26Y050TG PPS WRAS, UL & NSF 25VA 50cm ETFE 19/0.2 Viton RSF26Y100RF PPS WRAS, UL & NSF 25VA 1 metre PVC 16/0.2 Nitrile RSF26HFP PPS WRAS, UL & NSF 100VA M12 connector Nitrile RSF26YFP PPS WRAS, UL & NSF 25VA M12 connector Nitrile Custom versions can be made for particular applications. Please contact Sensata with your requirements. DIMENSIONS All dimensions are in millimeters. Page 2 Made in the UK Sensata Technologies, Inc. (Sensata) data sheets are solely intended to assist designers (Buyers) who are developing systems that CONTACT US incorporate Sensata products (also referred to herein as components). Buyer understands and agrees that Buyer remains responsible for using its independent analysis, evaluation and judgment in designing Buyers systems and products. Sensata data sheets have +44 (0)1202 897969 been created using standard laboratory conditions and engineering practices. Sensata has not conducted any testing other than that c3w sales sensata.com specifically described in the published documentation for a particular data sheet. Sensata may make corrections, enhancements, Cynergy3 Components Ltd. improvements and other changes to its data sheets or components without notice. 7 Cobham Road, Buyers are authorized to use Sensata data sheets with the Sensata component(s) identified in each particular data sheet. HOWEVER, NO Ferndown Industrial Estate, OTHER LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE TO ANY OTHER SENSATA INTELLECTUAL PROPERTY RIGHT, AND Wimborne, Dorset, NO LICENSE TO ANY THIRD PARTY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT, IS GRANTED HEREIN. SENSATA DATA SHEETS BH21 7PE, United Kingdom ARE PROVIDED AS IS. SENSATA MAKES NO WARRANTIES OR REPRESENTATIONS WITH REGARD TO THE DATA SHEETS OR USE OF THE DATA SHEETS, EXPRESS, IMPLIED OR STATUTORY, INCLUDING ACCURACY OR COMPLETENESS. SENSATA DISCLAIMS ANY WARRANTY OF TITLE AND ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT, QUIET POSSESSION, AND NON-INFRINGEMENT OF ANY THIRD PARTY INTELLECTUAL PROPERTY RIGHTS WITH REGARD TO SENSATA DATA SHEETS OR USE THEREOF. All products are sold subject to Sensatas terms and conditions of sale supplied at www.sensata.com SENSATA ASSUMES NO LIABILITY FOR APPLICATIONS ASSISTANCE OR THE DESIGN OF BUYERS PRODUCTS. BUYER ACKNOWLEDGES AND AGREES THAT IT IS SOLELY RESPONSIBLE FOR COMPLIANCE WITH ALL LEGAL, REGULATORY AND SAFETY-RELATED REQUIREMENTS CONCERNING ITS PRODUCTS, AND ANY USE OF SENSATA COMPONENTS IN ITS APPLICATIONS, NOTWITHSTANDING ANY APPLICATIONS-RELATED INFORMATION OR SUPPORT THAT MAY BE PROVIDED BY SENSATA. Mailing Address: Sensata Technologies, Inc., 529 Pleasant Street, Attleboro, MA 02703, USA. Copyright 2021 Sensata Technologies, Inc. ISO9001CERTIFIED Rev: Cynergy3-rsf20-v3 03/09/21 www.sensata.com