cynergy3.com

RSF20 Series
Low level switch for boiling water
Pivot out of liquid
Low level switch position
WRAS approved for use in hot & cold water
Many variants are UL recognised
components File No. E171218
Flying lead or M12 connector
Technical Specification
Material
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.
Colour
Temp. Range °C
°F
Minimum liquid SG
Must close level (SG=1)
Must open level (SG=1)
* Maximum temperature requires ETFE cable to be specified.
Electrical Specification
Contact Form
Switching Power Max
VA
Switching Voltage AC Max
V
Switching Voltage DC Max
V
Switching Current Max
A
All ratings are for resistive load only.
Standard Parts
RSF26H050TG
RSF26H100RF
RSF26Y050TG
RSF26Y100RF
RSF26HFP
RSF26YFP
Material
PPS
PPS
PPS
PPS
PPS
PPS
Polyphenylene
Sulphide (PPS)
Grey
-10 / +120 *
+14 / +248 *
0.80
9mm
24mm
25W (Y code)
N/C
25
240
120
0.6
100W (H code)
N/C
100
300
300
1
Approvals
WRAS & UL
WRAS & UL
WRAS & UL
WRAS & UL
WRAS & UL
WRAS & UL
Max Power
100VA
100VA
25VA
25VA
100VA
25VA
Leadouts
50cm ETFE 19/0.2
1 metre PVC 16/0.2
50cm ETFE 19/0.2
1 metre PVC 16/0.2
M12 connector
M12 connector
Gasket
Viton
Nitrile
Viton
Nitrile
Nitrile
Nitrile
Custom versions can be made for particular applications. Please contact Cynergy3 with your requirements.
Mechanical Dimensions
All dimensions are in millimetres (inches)
M12 connection version
2
1
3
4
Switch on pins 1 & 2
Switch Open
Gasket Seal
30° Max.
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.
Switch
closed
6° min.
166.0 (6.5”) Nominal
Fully Extended
Cynergy3 Components Ltd.
7 Cobham Road
Ferndown Industrial Estate
Wimborne, Dorset BH21 7PE
Telephone +44 (0) 1202 897969
Email:sales@cynergy3.com
ISO9001 C E R T I F I E D
Must open level
8mm (0.3") max tank wall
M16 x 2.0 Supplied with Nylon Hex Half Nut
16.5mm (0.65") dia. Hole in Tank
O 24mm (0.9”)
Mounting Surface Internal
33.5mm (1.3”)
35.0 for M12 connection version
148.0 (5.8”) Nominal
Must close level
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