Serviceline Industrial Sensors
Serviceline Explosion Protection
Float Switch LFL3-**-U
- Switch element: mercury (Hg)
- Limit value detection for fluids
- Sleeve design: small diameter, mounting through G1 tap hole possible
- Ball design: high buoyancy
Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.
Download the complete datasheet as a PDF:
Datasheet excerpt: Technical data of LFL3-**-U
| General specifications | ||
|---|---|---|
| Series | LFL3-**-U | |
| Electrical specifications | ||
| Contact loading | 230 V AC/3 A/200 VA; 150 V DC/3 A/100 W resistive load | |
| Rated insulation voltage | 300 V | |
| Pulse withstand voltage | 4 kV | |
| Directive conformity | ||
| Low voltage | ||
| Directive 2014/35/EU | EN 60947-5-1:2004 + Cor.:2005 + A1:2009 | |
| Conformity | ||
| Degree of protection | IEC 60529:2001 | |
| Application | ||
| Description | mercury (Hg) change-over contact | |
| Function and system design | ||
| 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. | |
| 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 - TPK 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) |
|
| Density | sleeve design: ≥ 0.8 g/cm3 ball design: ≥ 0.6 g/cm3 |
|
| Ambient conditions | ||
| 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 | |
| Mechanical specifications | ||
| Degree of protection | IP68 | |
| Mechanical construction | ||
| 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 +15° ±5° - lower switch point -15° ±5° |
|
| General information | ||
| Supplementary information | Statement of Conformity, Declaration of Conformity, Attestation of Conformity and instructions have to be observed 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 |
|
Classifications
| System | Classcode |
|---|---|
| ECLASS 13.0 | 27200510 |
| ECLASS 12.0 | 27200510 |
| ECLASS 11.0 | 27200510 |
| ECLASS 10.0.1 | 27200510 |
| ECLASS 9.0 | 27200510 |
| ECLASS 8.0 | 27200510 |
| ECLASS 5.1 | 27200510 |
| ETIM 9.0 | EC011178 |
| ETIM 8.0 | EC011178 |
| ETIM 7.0 | EC011178 |
| ETIM 6.0 | EC001447 |
| ETIM 5.0 | EC001447 |
| UNSPSC 12.1 | 41111950 |
Details: LFL3-**-U
Function
The mercury (Hg) mechanical contact (change-over contact) is encapsulated in the PP float and is activated in the event of deviations from the horizontal position.
Product Documentation: LFL3-**-U
| Safety and Security Documentation | Language | File Type | File Size |
|---|---|---|---|
| Instruction manual | ENG | 43 KB |
Design / Simulation: LFL3-**-U
| CAD | Language | File Type | File Size |
|---|---|---|---|
| CAD 3-D / CAD 3-D | ALL | STP | 482 KB |
| CAD 3-D / CAD 3-D | ALL | STP | 254 KB |
Approvals: LFL3-**-U
| Contamination Declaration | Certificate No. | Language | File Type | File Size |
|---|---|---|---|---|
| Contamination declaration / Kontaminationserklärung | ALL | 137 KB |
Pepperl+Fuchs SE
Lilienthalstraße 200
68307 Mannheim
Germany
info@de.pepperl-fuchs.com
+49 621 776-0
© 2024 All Rights Reserved.
Pepperl+Fuchs is a leading developer and manufacturer of electronic sensors and components for the global automation market. Continuous innovation, enduring quality, and steady growth have been the foundation of our success for more than 70 years. Pepperl+Fuchs employs 6,300 people worldwide and has manufacturing facilities in Germany, USA, Singapore, Hungary, Indonesia and Vietnam, most of them ISO 9001 certified.