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www.cynergy3.com © 2014 Cynergy3 Components, All Rights Reserved. Specifications are subject to change without prior notice. Cynergy3 Components and the Cynergy3 Components logo are trademarks of Cynergy3 Components Limited. ISO9001 CERTIFIED RSF20 Series Low level switch for boiling water Cynergy3 Components Ltd.
7 Cobham Road
Ferndown Industrial Estate Wimborne, Dorset BH21 7PE Telephone +44 (0) 1202 897969 Email:sales@cynergy3.com 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. The switch is closed when the level is low(float down) and opens as the liquid level rises. Version are available with either flying leads or M12 circular connector Cables are available for use with M12 connection versions. Mechanical Dimensions WRAS approved for use in hot & cold water Custom versions can be made for particular applications. Please contact Cynergy3 with your requirements. Pivot out of liquid Low level switch position Many variants are UL recognised components File No. E171218 Technical Specification Material Polyphenylene Sulphide (PPS) Colour Grey Temp. Range C -10 / +120 *° °F +14 / +248 * Minimum liquid SG 0 0.8 Must close level (SG=1) 9mm Must open level (SG=1) 24mm * Maximum temperature requires ETFE cable to be specified. Electrical Specification 25W (Y code) 100W (H code) Contact Form N/C N/C Switching Power Max VA 25 100 Switching Voltage AC Max V 240 300 Switching Voltage DC Max V 120 300 Switching Current Max A 0.6 1 All ratings are for resistive load only. Standard Parts Material Approvals Max Power Leadouts Gasket RSF26H050TG PPS WRAS & UL 100VA 50cm ETFE 19/0.2 Viton RSF26H100RF PPS WRAS & UL 100VA 1 metre PVC 16/0.2 Nitrile RSF26Y050TG PPS WRAS & UL 25VA 50cm ETFE 19/0.2 Viton RSF26Y100RF PPS WRAS & UL 25VA 1 metre PVC 16/0.2 Nitrile RSF26HF PPS WRAS & UL 100VA NitrileP M12 connector RSF26Y PPS WRAS & UL 25VAFP M12 connector Nitrile All dimensions are in millimetres (inches) 166.0 (6.5”) Nominal 148.0 (5.8”) Nominal Fully Extended Gasket Seal O 24mm (0.9”) Switch closed 6° min. 16.5mm (0.65") dia. Hole in T ank Switch Open 30° Max. M16 x 2.0 Supplied with Nylon Hex Half Nut 8mm (0.3") max tank wall Must close level Must open level Mounting Surface Internal 33.5mm (1.3”) 35.0 for M12 connection version Flying lead or M12 connector M12 connection version Switch on pins 1 & 2 3 4