Pepperl Fuchs LFL1-*K-N-*****

Float Switch

MPN: LFL1-*K-N-*****
Category: Float Switches

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What is the Pepperl Fuchs LFL1-*K-N-*****?

Switch element: float switch with initiator, mercury-free

Electrical connections in acc. with NAMUR for hazardous area

Limit value detection for fluids

Sleeve design: small diameter, mounting through G1 tap hole possible

Ball design: high buoyancy

Switch element: float switch with initiator, mercury-free, Electrical connections in acc. with NAMUR for hazardous area, Limit value detection for fluids, Sleeve design: small diameter, mounting through G1 tap hole possible, Ball design: high buoyancy

Specifications

General specifications

Order code (Pepperl+Fuchs part number)	T3009
Construction type	Inductive sensor with switching ball
Series	LFL1-**-N
Lifecycle	Active (current Pepperl+Fuchs product)

Supply

Rated voltage	8.2 V ± 2 V Ur
Current consumption	2.2 mA switched (floated up at the top)
Reverse polarity protection	yes

Output

Connection

NAMUR acc. to EN 60947-5-6 , 2-wire

Directive conformity

Electromagnetic compatibility: Directive 2014/30/EU

EN 60947-5-2:2007+A1:2012

Conformity

Degree of protection

IEC 60529:2001

Function and system design

Equipment architecture

A 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 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 mounting: - 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 pressure (static pressure)	sleeve design: ≤ 3 bar at 20 °C (68 °F) ball design: ≤ 2 bar at 20 °C (68 °F)
Process conditions: Density	sleeve design: ≥ 0.8 g/cm3 ball design: ≥ 0.6 g/cm3

Ambient conditions

Ambient temperature	-20 ... 70 °C (-4 ... 158 °F)
Storage temperature	-25 ... 70 °C (-13 ... 158 °F)
Altitude	≤ 2000 m above MSL

Mechanical specifications

Degree of protection

IP68

Data for application in connection with hazardous areas

EU-type examination certificate	TÜV 99 ATEX 1407
Marking	II 2G Ex ia IIB T5 Gb
Directive conformity: Directive 2014/34/EU	EN 60079-0:2012+A11:2013 , EN 60079-11:2012

Mechanical construction

Material	float: 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))
Switching point	switch angle, measured against the horizontal: - upper switch point +15° ±5° - lower switch point -15° ±5°

General information

Supplementary information

Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.

Accessories

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

Downloads & documentation

Official documents from Pepperl Fuchs, downloaded directly from the manufacturer.

Data sheets & manuals

Instruction ManualPDF · 134 kB

CAD & dimension drawings

Certificates (2)

LFL1-*K-N-*****: frequently asked questions

When can LFL1-*K-N-***** be shipped?

LFL1-*K-N-***** is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up LFL1-*K-N-***** in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for LFL1-*K-N-***** and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for LFL1-*K-N-*****, subject to availability and destination.