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Float Switch

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Каталожный номер: T3020
Supply
Rated voltagesee datasheets of float switches
Electrical specifications
Contact loadingsee datasheets of float switches
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUsee datasheets of float switches
Low voltage
Directive 2014/35/EUsee datasheets of float switches
Conformity
Degree of protectionIEC 60529:2001
Application
Descriptionswitching element:
LFL1: floating up closing, normally open
LFL2: microswitch with switching ball, change-over contact
LFL3: mercury (Hg) change-over contact
Operating conditions
Installation conditions
Installation instructionsrange of application and minimum length between mounting and float:
- PVC version: &ge 50 mm (2 inch), preferred for water
- PUR version: &ge 100 mm (4 inch), preferred for fuels, heating oils, oily fluids
- CSM/CM version: &ge 100 mm (4 inch), preferred for many acids and lyes

Float switches are fastened onto the lower end of the guide pipe in the factory. The position of the switch points required for the application must be adjusted by the user by moving the set collars (in some cases, it may be necessary to shorten the float switch wire).
Process conditions
Process pressure (static pressure)&le 1 bar at 20 °C (68 °F)
Ambient conditions
Ambient temperature5 ... 70 °C (41 ... 158 °F)
Storage temperature-25 ... 70 °C (-13 ... 158 °F)
Mechanical specifications
Degree of protectionFloat Switch : IP68
terminal box: IP66
Mechanical construction
Dimensionsguide tube: &empty16 mm (0.6 inch), Lmax = 3000 mm (10 feet)
Materialfloat: PP (Polypropylene)
guide tube: PVC
process connection: PVC
set collars and clamping screw: PVC
Каталожный номер: T3009
Supply
Rated voltage8.2 V ± 2 V
Current consumption< 1.0 mA unswitched (de-energized at the bottom),
> 2.2 mA switched (floated up at the top)
Reverse polarity protectionyes
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 60947-5-2:2007+A1:2012
Conformity
Degree of protectionIEC 60529:2001
Application
DescriptionProximity switch with operation ball
Function and system design
Equipment architectureA measuring system consists of a float switch LFL1-**-N and a transformer isolated barrier,
e. g. KFD2-SR2-Ex1.W.
Operating conditions
Installation conditions
Installation instructionsrange of application and minimum length between mounting and float:
- PVC version: &ge 50 mm (2 inch), preferred for water
- PUR version: &ge 100 mm (4 inch), preferred for fuels, heating oils, oily fluids
- CSM/CM version: &ge 100 mm (4 inch), preferred for many acids and lyes

mounting:
- The float switch is mounted either from sidewards through a cable gland &ge G1A into the vessel or
- by means of a counter weight or rods (e. g. float switch combination) from the top.
The pivot of the cable should always be horizontal.
Process conditions
Process pressure (static pressure)sleeve design: &le 3 bar at 20 °C (68 °F)
ball design: &le 2 bar at 20 °C (68 °F)
Densitysleeve design: &ge 0.8 g/cm3
ball design: &ge 0.6 g/cm3
Ambient conditions
Ambient temperature-20 ... 70 °C (-4 ... 158 °F)
Storage temperature-25 ... 70 °C (-13 ... 158 °F)
Altitude&le 2000 m above MSL
Mechanical specifications
Degree of protectionIP68
Data for application in connection with hazardous areas
EC-Type Examination CertificateTÜV 99 ATEX 1407
Group, category, type of protectionEx-Hexagon II 2G Ex ia IIB T5
Directive conformity
Directive 2014/34/EUEN 60079-0:2012+A11:2013 , EN 60079-11:2012
Mechanical construction
Materialfloat: PP (Polypropylene)
cable:
- PVC version: PVC cable, highly flexible (2 x 0.75 mm2)
- PUR version: PUR cable, highly flexible (2 x 0.50 mm2)
- CSM/CM version: CSM/CM cable (chlorinated polyethylene, (2 x 0.75 mm2))
Каталожный номер: T3018
Electrical specifications
Contact loading250 V AC/3 A 150 V DC/0.25 A resistive load 60 V DC/1 A resistive load
Rated insulation voltage300 V
Pulse withstand voltage4 kV
Directive conformity
Low voltage
Directive 2014/35/EUEN 60947-5-1:2004 + Cor.:2005 + A1:2009
Conformity
Degree of protectionIEC 60529:2001
Application
Descriptionmicroswitch with switching ball, change-over contact
Function and system design
Equipment architectureThis device may be used with any sequential circuit, as long as the circuit can support the electrical circuit values of the switching elements.
Operating conditions
Installation conditions
Installation instructionsrange of application and minimum length between mounting and float:
- PVC version: &ge 50 mm (2 inch), preferred for water
- PUR version: &ge 100 mm (4 inch), preferred for fuels, heating oils, oily fluids
- CSM/CM version: &ge 100 mm (4 inch), preferred for many acids and lyes

mounting:
- The float switch is mounted either from sidewards through a cable gland &ge G1A into the vessel or
- by means of a counter weight or rods (e. g. float switch combination) from the top.
The pivot of the cable should always be horizontal.
Process conditions
Process pressure (static pressure)sleeve design: &le 3 bar at 20 °C (68 °F)
ball design: &le 2 bar at 20 °C (68 °F)
Densitysleeve design: &ge 0.8 g/cm3
ball design: &ge 0.6 g/cm3
Ambient conditions
Ambient temperaturePVC version: 5 ... 70 °C (41 ... 158 °F)
PUR version: 5 ... 70 °C (41 ... 158 °F)
CSM/CM version: -20 ... 70 °C (-4 ... 158 °F)
Storage temperature-25 ... 70 °C (-13 ... 158 °F)
Altitude&le 2000 m above MSL
Mechanical specifications
Degree of protectionIP68
Mechanical construction
Materialfloat: PP (Polypropylene)
cable:
- PVC version: PVC cable, highly flexible (3 x 0.75 mm2)
- PUR version: PUR cable, highly flexible (3 x 0.50 mm2)
- CSM/CM version: CSM/CM cable (chlorinated polyethylene, (3 x 0.75 mm2))
Каталожный номер: T3019
Electrical specifications
Contact loading230 V AC/3 A/200 VA 150 V DC/3 A/100 W resistive load
Rated insulation voltage300 V
Pulse withstand voltage4 kV
Directive conformity
Low voltage
Directive 2014/35/EUEN 60947-5-1:2004 + Cor.:2005 + A1:2009
Conformity
Degree of protectionIEC 60529:2001
Application
Descriptionmercury (Hg) change-over contact
Function and system design
Equipment architectureThis device may be used with any sequential circuit, as long as the circuit can support the electrical circuit values of the switching elements.
Operating conditions
Installation conditions
Installation instructionsrange of application and minimum length between mounting and float:
- PVC version: &ge 50 mm (2 inch), preferred for water
- PUR version: &ge 100 mm (4 inch), preferred for fuels, heating oils, oily fluids
- CSM/CM version: &ge 100 mm (4 inch), preferred for many acids and lyes
- TPK version: &ge 100 mm (4 inch), preferred for many acids and lyes
mounting:
- The float switch is mounted either from sidewards through a cable gland &ge G1A into the vessel or
- by means of a counter weight or rods (e. g. float switch combination) from the top.
The pivot of the cable should always be horizontal.
Process conditions
Process pressure (static pressure)sleeve design: &le 3 bar at 20 °C (68 °F)
ball design: &le 2 bar at 20 °C (68 °F)
Densitysleeve design: &ge 0.8 g/cm3
ball design: &ge 0.6 g/cm3
Ambient conditions
Ambient temperaturePVC version: 5 ... 70 °C (41 ... 158 °F)
PUR version: 5 ... 70 °C (41 ... 158 °F)
CSM/CM version: -20 ... 70 °C (-4 ... 158 °F)
TPK version: 5 ... 70 °C (41 ... 158 °F)
Storage temperature-25 ... 70 °C (-13 ... 158 °F)
Altitude&le 2000 m above MSL
Mechanical specifications
Degree of protectionIP68
Mechanical construction
Materialfloat: PP (Polypropylene)
cable:
- PVC version: PVC cable, highly flexible (3 x 0.75 mm2)
- PUR version: PUR cable, highly flexible (3 x 0.50 mm2)
- CSM/CM version: CSM/CM cable (chlorinated polyethylene, (3 x 0.75 mm2))
- TPK version: TPK cable, (3 x 0.75 mm2)

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