
Specs at a glance
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Process temperature
-20 °C ... 80 °C (-4 °F ... 170 °F)
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Process pressure / max. overpressure limit
0.5 bar to 1.5 bar (7 psi ... 22 psi)
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Min. density of medium
>= 80 g/l
Field of application
The Soliswitch FTE20 is a versatile rotary paddle point level switch that has been specially developed for bulk solid applications. Its compact design and high resistance enable reliable use even under demanding conditions. The device offers flexible mounting options and supports easy commissioning and adaptation to different material characteristics. In addition, integrated safety functions and international approvals ensure safe operation even in potentially explosive atmospheres.
The economical Soliswitch FTE20 rotary paddle point level switch is ideal for use in bulk solids
Thanks to its compact design and robust polymer housing, the sensor can be used flexibly in silos
It can be used reliably as a full, empty or demand indicator
Thanks to its construction and the materials used, the FTE20 is extremly robust and can withstand even the most demanding conditions
The sensor can be used in hazardous atmospheres with a risk of dust explosion
Benefits
Overfill protection with automatic rotation monitoring
Optical rotation control for fast and easy checking during installation and troubleshooting
Extremely robust polymer housing with global Ex certificates for ATEX, IECEx, FM, UK CA und INMETRO
Quick ordering, easy configuration, and commissioning
Tool-free adjustment to the weight of the bulk solids
Housing can be rotated up to 360° for optimal alignment after installation
Resistance coupling element for line break and short-circuit monitoring as optional accessories
Videos
Fundamental selection
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Simple products
- Easy to select, install and operate
Technical excellence
Simplicity

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Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
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Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable
FLEX selections | Technical excellence | Simplicity |
---|---|---|
Fundamental selection Meet your basic measurement needs |
Technical excellence
|
Simplicity
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Lean selection Handle your core processes easily |
Technical excellence
|
Simplicity
|
Extended selection Optimize your processes with innovative technologies |
Technical excellence
|
Simplicity
|
Xpert selection Master your most challenging applications |
Technical excellence
|
Simplicity
Variable |
Predecessor
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Technical Information (TI)
TI Soliswitch FTE20
English version - 01/2023
Robust and cost-efficient rotary paddle point level switch for bulk solids
EN More 31/01/202331/05/202224/12/201919/11/201530/03/2015Language:
English
Version:
31/01/2023
File size:
2.7 MB
File name:
TI01047FEN_0923-00.pdf
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Operating Instruction (BA)
BA Soliswitch FTE20
English version - 01/2023
Point level switch
EN More 31/01/202331/05/202224/12/201920/11/201523/03/2015Language:
English
Version:
31/01/2023
File size:
3.7 MB
File name:
BA01069FEN_0823-00.pdf
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Technical Information (TI)
TI Soliswitch FTE20
Robust and cost-efficient rotary paddle point level switch for bulk
solidsEN Select other language 31/01/202331/05/202224/12/201919/11/201530/03/2015Language:
English
Version:
31/01/2023
File size:
2.7 MB
File name:
TI01047FEN_0923-00.pdf
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Operating Instruction (BA)
BA Soliswitch FTE20
Point level switch
EN Select other language 31/01/202331/05/202224/12/201920/11/201523/03/2015Language:
English
Version:
31/01/2023
File size:
3.7 MB
File name:
BA01069FEN_0823-00.pdf
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Ex Safety Instruction (XA)
XA Soliswitch FTE20
Point level switch
ATEX:
Ex tb IIIC Txxx °C Db (Enclosure)
Ex ta IIIC Txxx °C Da (Process)EN Select other language 25/03/202416/08/202219/07/202107/05/201829/04/2015Language:
English
Version:
25/03/2024
File size:
550.2 KB
File name:
XA01034FEN_0624-00.pdf
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Ex Safety Instruction (XA)
Soliswitch FTE20
Point level switch
Ex ta IIIC T<sub>200</sub> T110 °C Da (Process)
Ex tb IIIC T110 °C Db (Enclosure)EN Select other language 28/09/202216/08/2021Language:
English
Version:
28/09/2022
File size:
653.8 KB
File name:
XA02685FEN_0222-00.pdf
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Ex Safety Instruction (XA)
FM approval FTE20
FM control drawing for point level switch Soliswitch FTE20
EN 06/03/202416/07/201507/07/2014Language:
English
Version:
06/03/2024
File size:
376.6 KB
File name:
XA01331FEN_03.23.pdf
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Ex Safety Instruction (XA)
FTE20
Point level switch
Ех ta IIIC T 110 °С Da Х
Ех tb IIIC T 110 °С Db ХEN Select other language 04/01/2021Language:
English
Version:
04/01/2021
File size:
284.1 KB
File name:
XA02355FEN_0121.pdf
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Special Documentation (SD)
Device viewer
Technical documentation in other languages
Language:
English
Version:
14/07/2021
File size:
478.5 KB
File name:
SD02429R09EN_0121.pdf
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Fields of Activities (FA)
Level measurement
Product overview for applications in liquids and bulk solids
Language:
English
Version:
14/10/2022
File size:
10.5 MB
File name:
FA00001F00EN2522.pdf
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Fields of Activities (FA)
Misura di livello
Misura di livello
Panoramica dei prodotti per applicazioni in liquidi e solidi sfusiLanguage:
Italian
Version:
03/03/2023
File size:
46.9 MB
File name:
FA00001F00IT2522.pdf
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Fields of Activities (FA)
Catálogo Medición y Detección de nivel
Gama de productos para aplicaciones con líquidos y sólidos
Language:
Spanish
Version:
01/06/2022
File size:
7.2 MB
File name:
FA00001Fes Catalogo Nivel_24.22.pdf
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Fields of Activities (FA)
Füllstandsmesstechnik
Produktübersicht für Anwendungen in Flüssigkeiten und Schüttgütern
Language:
German
Version:
14/10/2022
File size:
10.6 MB
File name:
FA00001F00DE2522.pdf
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Competence Brochure (CP)
Grenzstanddetektion in Flüssigkeiten und Schüttgütern
Auswahl- und Projektierungshilfe
Language:
German
Version:
19/02/2025
File size:
13.5 MB
File name:
CP00007F00DE1925.pdf
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Competence Brochure (CP)
Point level detection in liquids and bulk solids
Selection and engineering guide
Language:
English
Version:
19/02/2025
File size:
13.4 MB
File name:
CP00007F00EN1925.pdf
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Competence Brochure (CP)
Catálogo soluciones esenciales
Alta calidad a precios competitivos
Language:
Spanish
Version:
16/01/2017
File size:
8.9 MB
File name:
CP01266Z.pdf
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CM (Customer magazine)
Trait d'union 57 - Edition Process
Le Journal d'Information Endress+Hauser France
Language:
French
Version:
17/07/2013
File size:
3.5 MB
File name:
TU57_Process.pdf
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Manufacturer Declaration
Product family: Soliswitch
Product root: FTE20-, OFTE20-
Declaration number: ЕАЭС KZ 7500533.13.12.04191
Manufacturer specification: EMCLanguage:
Russian
Version:
29/08/2024
File size:
946.5 KB
File name:
EACKZ7500533131204191.pdf
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Manufacturer Declaration
Product family: Soliswitch
Product root: FTE20-
Declaration number: HE_00644_01.17
Manufacturer specification: RoHSLanguage:
English
Version:
24/04/2017
File size:
160.9 KB
File name:
HE_00644_01.17 China RoHS FTE20.pdf
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EU Declaration
Product family: Contactors/transmitters, Controller, Ecograph, Memo-Graph, Power supply, Power supply and barrier, Preline, Process displays, Soliswitch
Product root: FML621-, FTE20-, FTE30-, FTE31-, OFTE20-, ORIA15-, ORIA45-, ORIA46-, ORMA42-, ORSG35-, ORSG45-, OSG40-, OSG45-, RA33-,
RB223-, RH33-, RIA45-, RIA452-, RIA452L-, RIA46-, RMA42-, RMC621-, RMC621L-, RMS621-, RMS621L-, RN221N-, RN221NL-, RNB130-, RNS221-
, RNS221L-, RS33-, RSG35-, RSG40-, RSG45-, RTA421-, RTA421L-
Declaration number: EC_00569_03.22EN Select other language 18/10/2022Language:
English
Version:
18/10/2022
File size:
155.3 KB
File name:
EC_00569_03.22.pdf
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EU Declaration
Product family: Soliswitch
Product root: FTE20-
Declaration number: EC_00343_01.16EN Select other language 20/04/2016Language:
English
Version:
20/04/2016
File size:
860.1 KB
File name:
EC_00343_01.16.pdf
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EU Declaration
Product family: Soliswitch
Product root: FTE20-
Declaration number: EC_00190_04.25EN Select other language 09/03/2021Language:
English
Version:
09/03/2021
File size:
187.6 KB
File name:
EC_00190_04.25.pdf
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EU Declaration
Product family: Soliswitch
Product root: FTE20-, OFTE20-
Declaration number: EC_00029_04.25EN Select other language 09/03/2021Language:
English
Version:
09/03/2021
File size:
187.6 KB
File name:
EC_00029_04.25.pdf
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UK Conformity Assessed
Product family: Soliswitch
Productroot: FTE20-, FTE30-, OFTE20-
Declaration number: UK_00420_01.21Language:
English
Version:
01/12/2021
File size:
122.4 KB
File name:
UK_00420_01.21.pdf
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UK Conformity Assessed
Product family: Soliswitch
Productroot: FTE20-, OFTE20-
Declaration number: UK_00278_01.21Language:
English
Version:
24/03/2022
File size:
131.4 KB
File name:
UK_00278_01.21.pdf
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Explosion Protection
Product family: Soliswitch
Product root: FTE20-
Region: China
Approval agency: NEPSI
Protection: Ex tD A20/A21 IP6X Txxx°CLanguage:
Chinese
Version:
18/05/2021
File size:
6.9 MB
File name:
GYJ21.1229_Iss.1.pdf
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Explosion Protection
Product family: Soliswitch
Product root: FTE20-
Region: International (IECEx)
Approval agency: FM
Protection: Ex t IIIC Txxx°C Da, Ex t IIIC Txxx°C DbLanguage:
English
Version:
15/03/2021
File size:
156.6 KB
File name:
IECEx FMG12.0030X_02.pdf
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Explosion Protection
Product family: Soliswitch
Productroot: FTE20-, OFTE20-
Region: Great Britain
Approval agency: CML
Protection: Ex t Zone 20/21, Ex t Zone 20/22Language:
English
Version:
21/10/2021
File size:
1.1 MB
File name:
CML21UKEX3992XIss0.pdf
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Explosion Protection
Product family: Soliswitch
Product root: FTE20-, OFTE20-
Region: Canada
Approval agency: FM
Protection: DIPLanguage:
English
Version:
04/04/2025
File size:
1.8 MB
File name:
FM20CA0072XSupp03.pdf
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Explosion Protection
Product family: Soliswitch
Product root: FTE20-
Region: China
Approval agency: SITIIAS
Protection: Ex t Zone 20/21Language:
Chinese
Version:
13/05/2021
File size:
2 MB
File name:
2021322315003963_2021322315003807.pdf
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Explosion Protection
Product family: Soliswitch
Product root: FTE20-
Region: USA
Approval agency: FM
Protection: 335Language:
English
Version:
16/04/2025
File size:
1.8 MB
File name:
FM20US0143XSupp03.pdf
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Explosion Protection
Product family: Soliswitch
Product root: FTE20-, OFTE20-
Region: Europe (ATEX)
Approval agency: FM
Category: 010 005 010, 010 075 010
Protection: Ex t Zone 20/21Language:
English
Version:
04/04/2025
File size:
2 MB
File name:
FM14ATEX0040X_Iss.7.pdf
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