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LFL2-**-U

LFL2-**-U Float Switch

订货号: T3018
产品分类: 浮球开关

Float Switch

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TECHNICAL DATA

规格参数

General specifications

Construction type	microswitch with switching ball, change-over contact
Series	LFL2-**-U
Contact loading	250 V AC/3 A; 150 V DC/0.25 A resistive load; 60 V DC/1 A resistive load
Rated insulation voltage	300 V
Pulse withstand voltage	4 kV
Electrical life	≥ 5 x 104 switching cycles
Connection	volt-free change-over contact
Low voltage	Low voltage
Directive 2014/35/EUEN 60947-5-1:2017	Directive 2014/35/EUEN 60947-5-1:2017
Directive 2014/35/EU	EN 60947-5-1:2017
Degree of protection	IEC 60529:2001
Equipment architecture	This device may be used with any sequential circuit, as long as the circuit can support the electrical circuit values of the switching elements.
Installation conditions	Installation conditions
Installation instructionsrange of application and minimum length between mounting and float:- PVC version: ≥ 50 mm (2 inch), preferred for water- PUR version: ≥ 100 mm (4 inch), preferred for fuels, heating oils, oily fluids- CSM/CM version: ≥ 100 mm (4 inch), preferred for many acids and lyes- TPK version: ≥ 100 mm (4 inch), preferred for many acids and lyesmounting:- The float switch is mounted either from sidewards through a cable gland ≥ 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.	Installation instructionsrange of application and minimum length between mounting and float:- PVC version: ≥ 50 mm (2 inch), preferred for water- PUR version: ≥ 100 mm (4 inch), preferred for fuels, heating oils, oily fluids- CSM/CM version: ≥ 100 mm (4 inch), preferred for many acids and lyes- TPK version: ≥ 100 mm (4 inch), preferred for many acids and lyesmounting:- The float switch is mounted either from sidewards through a cable gland ≥ 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 conditions
Process pressure (static pressure)sleeve design: ≤ 3 bar at 20 °C (68 °F) ball design: ≤ 2 bar at 20 °C (68 °F)Densitysleeve design: ≥ 0.8 g/cm3 ball design: ≥ 0.6 g/cm3	Process pressure (static pressure)sleeve design: ≤ 3 bar at 20 °C (68 °F) ball design: ≤ 2 bar at 20 °C (68 °F)Densitysleeve design: ≥ 0.8 g/cm3 ball design: ≥ 0.6 g/cm3
Installation instructions	range of application and minimum length between mounting and float:- PVC version: ≥ 50 mm (2 inch), preferred for water- PUR version: ≥ 100 mm (4 inch), preferred for fuels, heating oils, oily fluids- CSM/CM version: ≥ 100 mm (4 inch), preferred for many acids and lyes- TPK version: ≥ 100 mm (4 inch), preferred for many acids and lyesmounting:- The float switch is mounted either from sidewards through a cable gland ≥ 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 pressure (static pressure)	sleeve design: ≤ 3 bar at 20 °C (68 °F) ball design: ≤ 2 bar at 20 °C (68 °F)
Density	sleeve design: ≥ 0.8 g/cm3 ball design: ≥ 0.6 g/cm3
Ambient temperature	PVC 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	≤ 2000 m above MSL
Degree of protection	IP68
Material	float: 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)
Switching point	switch angle, measured against the horizontal:- upper switch point 25° ±10°- lower switch point 6° ±6°
Supplementary information	Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.
Designation	- LFL-Z231, counter nut, G1A, PVC- LFL-Z32, counter weight, grey cast iron with plastic coating (Polycarbonate)- LFL-Z33, counter weight, grey cast iron with ECTFE coating (Halar)- LFL-Z131, gland screw connection G1A, PVC- LFL-Z132, gland screw connection G1A, brass- LFL-Z161, gland screw connection G2A, PVC- LFL-Z431, gland screw connection 1 NPT, PVC- LFL-Z461, gland screw connection 2 NPT, PVC

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资料与附件

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