Liquiphant FTL31 & FTL33 Point Level Switches

Endress+Hauser Liquiphant FTL31 and FTL33 Point Level Switches are ideal for applications that traditionally use float switches or conductive, capacitance, and optical sensors. These switches work in areas where these measuring principles are not suitable due to conductivity, buildup, turbulence, flows, or air bubbles because the Liquiphant devices are unaffected by these conditions. These sensors can be used for process temperatures up to +150°C, which is also suitable for CIP and SIP cleaning processes. The compact design features small vibronic sensors in robust 316L stainless steel housing with no mechanically moving parts for maintenance-free use. These plug-and-play devices do not require adjustment, even with changing media, and are self-monitoring with safe switching in case of power supply loss. The Endress+Hauser Liquiphant FTL31 series is designed for the machinery industry, while the FTL33 switches are intended for food and beverage applications with hygienic requirements.

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Select Image Part # Mfr. Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity. Qty. RoHS Type Technology Process Medium Process Connection Output Type Supply Voltage - Min Supply Voltage - Max Housing Material IP Rating Series

Endress+Hauser Level Sensors - Industrial Vibronic level switch Non-hazardous area, 10-30VDC; 3-wire PNP, Plug M12, IP66/68/69 NEMA Type 4X/6P Encl., Max. process temperature 150oC/302oF, Compact version 316L Ra<1.5um/59uin, Thread ISO228 G3/4, 316L, install > accessory weld-in adapter
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
1In Stock
363,76 €
Min.: 1
Mult.: 1
Level Switch Vibronic Level Sensor Liquid Threaded Connection - Male G PNP 10 VDC 30 VDC Stainless Steel IP66, IP68, IP69 FTL33
Endress+Hauser Level Sensors - Industrial Vibronic level switch Non-hazardous area, 20-253VAC/DC; 2-wire, Valve plug ISO4400 M16, IP65 NEMA Type 4X Encl., Max. process temperature 150oC/302oF, Short tube version 316L Ra<3.2um/126uin, Thread ISO228 G1, 316L, install > accessory weld-in adapte
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
3In Stock
329,38 €
Min.: 1
Mult.: 1
Level Switch Vibronic Level Sensor Liquid Threaded Connection - Male G PNP 20 VAC / VDC 253 VAC / VDC Stainless Steel IP65 FTL31
Endress+Hauser Level Sensors - Industrial Vibronic level switch Non-hazardous area, 20-253VAC/DC; 2-wire, Valve plug ISO4400 NPT1/2, IP65 NEMA Type 4X Encl., Max. process temperature 150oC/302oF, Short tube version 316L Ra<3.2um/126uin, Thread ASME MNPT1, 316L
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
2In Stock
324,42 €
Min.: 1
Mult.: 1
Level Switch Vibronic Level Sensor Liquid Threaded Connection - NPT PNP 20 VAC / VDC 253 VAC / VDC Stainless Steel IP65 FTL31
Endress+Hauser Level Sensors - Industrial Vibronic level switch Non-hazardous area, 10-30VDC; 3-wire PNP, Plug M12, IP65/67 NEMA Type 4X Encl., Max. process temperature 100oC/212oF, Compact version 316L Ra<3.2um/126uin, Thread ASME MNPT3/4, 316L
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
1In Stock
230,81 €
Min.: 1
Mult.: 1
Level Switch Vibronic Level Sensor Liquid Threaded Connection - NPT PNP 10 VDC 30 VDC Stainless Steel IP65, IP67 FTL31
Endress+Hauser Level Sensors - Industrial Vibronic level switch Non-hazardous area, 10-30VDC; 3-wire PNP, Plug M12, IP65/67 NEMA Type 4X Encl., Max. process temperature 150oC/302oF, Compact version 316L Ra<3.2um/126uin, Thread ISO228 G1/2, 316L
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
1In Stock
270,13 €
Min.: 1
Mult.: 1
Level Switch Vibronic Level Sensor Liquid Threaded Connection - Male G PNP 10 VDC 30 VDC Stainless Steel IP65, IP67 FTL31
Endress+Hauser Level Sensors - Industrial Vibronic level switch Non-hazardous area, 10-30VDC; 3-wire PNP, Valve plug ISO4400 M16, IP65 NEMA Type 4X Encl., Max. process temperature 100oC/212oF, Compact version 316L Ra<3.2um/126uin, Thread ISO228 G3/4, 316L, install > accessory weld-in adapter
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
3In Stock
230,81 €
Min.: 1
Mult.: 1
Level Switch Vibronic Level Sensor Liquid Threaded Connection - Male G PNP 10 VDC 30 VDC Stainless Steel IP65 FTL31

Endress+Hauser Level Sensors - Industrial Vibronic level switch Non-hazardous area, 10-30VDC; 3-wire PNP, Plug M12, IP65/67 NEMA Type 4X Encl., Max. process temperature 100oC/212oF, Compact version 316L Ra<1.5um/59uin, Tri-Clamp ISO2852 DN25-38 (1..1-1/2"), 316L, DIN32676 DN25-40
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
2In Stock
382,91 €
Min.: 1
Mult.: 1
Level Switch Vibronic Level Sensor Liquid Tri-Clamp ISO2852 DN25-38 PNP 10 VDC 30 VDC Stainless Steel IP65, IP67 FTL33

Endress+Hauser Level Sensors - Industrial Vibronic level switch Non-hazardous area, 10-30VDC; 3-wire PNP, Plug M12, IP66/68/69 NEMA Type 4X/6P Encl., Max. process temperature 150oC/302oF, Compact version 316L Ra<1.5um/59uin, Thread ISO228 G1, 316L, install > accessory weld-in adapter
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
3In Stock
388,39 €
Min.: 1
Mult.: 1
Level Switch Vibronic Level Sensor Liquid Threaded Connection - Male G PNP 10 VDC 30 VDC Stainless Steel IP66, IP68, IP69 FTL33

Endress+Hauser Level Sensors - Industrial Vibronic level switch CSA C/US General Purpose, 10-30VDC; 3-wire PNP, Plug M12, IP65/67 NEMA Type 4X Encl., Max. process temperature 100oC/212oF, Compact version 316L Ra<1.5um/59uin, Thread ASME MNPT3/4, 316L
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
1In Stock
282,56 €
Min.: 1
Mult.: 1
Level Switch Vibronic Level Sensor Liquid Threaded Connection - NPT PNP 10 VDC 30 VDC Stainless Steel IP65, IP67 FTL33

Endress+Hauser Level Sensors - Industrial DC-PNP, IO-Link; 4-wire Plug M12, IP65/67 NEMA Type 4X Encl. Vibronic level switch Thread ISO228 G1, 316L
1Expected 09/11/2026
285,10 €
Min.: 1
Mult.: 1
FTL31
Endress+Hauser Level Sensors - Industrial Vibronic level switch 10-30VDC; 3-wire PNP Thread ISO228 G1, 316L, install > accessory weld-in adapter Liquiphant FTL31/33
1Expected 09/11/2026
414,04 €
Min.: 1
Mult.: 1
Level Switch Vibronic Level Sensor Liquid Threaded Connection - G PNP 10 VDC 30 VDC Stainless Steel IP65, IP66, IP67, IP68, IP69 FTL31

Endress+Hauser Level Sensors - Industrial 10-30VDC; 3-wire PNP Plug M12, IP65/67 NEMA Type 4X Encl. Vibronic level switch Thread ISO228 G1/2, 316L Non-Stocked Lead-Time 2 Weeks
400,96 €
Min.: 1
Mult.: 1
FTL31
Endress+Hauser Level Sensors - Industrial Vibronic level switch 20-253VAC/DC; 2-wire Thread ASME MNPT1, 316L Valve plug ISO4400 NPT1/2, IP65 NEMA Type 4X Encl.
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
Non-Stocked Lead-Time 3 Weeks
285,24 €
Min.: 1
Mult.: 1
Level Switch Vibronic Level Sensor Liquid Threaded Connection - Male NPT PNP 20 VAC / VDC 253 VAC / VDC Stainless Steel FTL31
Endress+Hauser Level Sensors - Industrial Vibronic level switch 10-30VDC; 3-wire PNP Thread ASME MNPT1/2, 316L Valve plug ISO4400 M16, IP65 NEMA Type 4X Encl.
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
Non-Stocked Lead-Time 3 Weeks
299,73 €
Min.: 1
Mult.: 1
Level Switch Vibronic Level Sensor Liquid Threaded Connection - Male NPT PNP 10 VDC 30 VDC Stainless Steel FTL31
Endress+Hauser Level Sensors - Industrial Vibronic level switch 10-30VDC; 3-wire PNP Thread ASME MNPT1/2, 316L Valve plug ISO4400 NPT1/2, IP65 NEMA Type 4X Encl.
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
Non-Stocked Lead-Time 3 Weeks
299,73 €
Min.: 1
Mult.: 1
Level Switch Vibronic Level Sensor Liquid Threaded Connection - Male NPT PNP 10 VDC 30 VDC Stainless Steel FTL31
Endress+Hauser Level Sensors - Industrial Vibronic level switch 20-253VAC/DC; 2-wire Thread ISO228 G3/4, 316L Valve plug ISO4400 NPT1/2, IP65 NEMA Type 4X Encl.
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
Non-Stocked Lead-Time 3 Weeks
270,13 €
Min.: 1
Mult.: 1
Level Switch Vibronic Level Sensor Liquid PNP 10 VDC 30 VDC Stainless Steel FTL31
Endress+Hauser Level Sensors - Industrial Vibronic level switch 10-30VDC; 3-wire PNP Thread ASME MNPT3/4, 316L Plug M12, IP65/67 NEMA Type 4X Encl.
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
Non-Stocked Lead-Time 5 Weeks
230,81 €
Min.: 1
Mult.: 1
Level Switch Vibronic Level Sensor Liquid Threaded Connection - Male NPT PNP 10 VDC 30 VDC Stainless Steel FTL31

Endress+Hauser Level Sensors - Industrial 10-30VDC; 3-wire PNP Plug M12, IP65/67 NEMA Type 4X Encl. Vibronic level switch Thread ISO228 G3/4, 316L, install > accessory weld-in adapter Non-Stocked Lead-Time 1 Week
230,81 €
Min.: 1
Mult.: 1
FTL31

Endress+Hauser Level Sensors - Industrial 10-30VDC; 3-wire PNP Plug M12, IP65/67 NEMA Type 4X Encl. Vibronic level switch Thread ISO228 G1/2, 316L Non-Stocked Lead-Time 1 Week
260,41 €
Min.: 1
Mult.: 1
FTL31
Endress+Hauser Level Sensors - Industrial Vibronic level switch 10-30VDC; 3-wire PNP Thread ISO228 G1, 316L Plug M12, IP65/67 NEMA Type 4X Encl.
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
Non-Stocked Lead-Time 3 Weeks
285,10 €
Min.: 1
Mult.: 1
Level Switch Vibronic Level Sensor Liquid Threaded Connection - Male G PNP 10 VDC 30 VDC Stainless Steel IP65, IP67 FTL31

Endress+Hauser Level Sensors - Industrial 10-30VDC; 3-wire PNP Plug M12, IP65/67 NEMA Type 4X Encl. Vibronic level switch Thread ISO228 G1, 316L Non-Stocked Lead-Time 1 Week
324,42 €
Min.: 1
Mult.: 1
FTL31
Endress+Hauser Level Sensors - Industrial Vibronic level switch 10-30VDC; 3-wire PNP Thread ISO228 G1/2, 316L Valve plug ISO4400 M16, IP65 NEMA Type 4X Encl.
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
Non-Stocked Lead-Time 4 Weeks
230,81 €
Min.: 1
Mult.: 1
Level Switch Vibronic Level Sensor Liquid Threaded Connection - G1/2 PNP 10 VDC 30 VDC Stainless Steel FTL31

Endress+Hauser Level Sensors - Industrial 10-30VDC; 3-wire PNP Valve plug ISO4400 M16, IP65 NEMA Type 4X Encl. Vibronic level switch Thread ISO228 G1, 316L, install > accessory weld-in adapter Non-Stocked Lead-Time 1 Week
299,78 €
Min.: 1
Mult.: 1
FTL31

Endress+Hauser Level Sensors - Industrial 10-30VDC; 3-wire PNP Valve plug ISO4400 M16, IP65 NEMA Type 4X Encl. Vibronic level switch Thread EN10226 R3/4, 316L Non-Stocked Lead-Time 8 Weeks
270,13 €
Min.: 1
Mult.: 1
FTL31

Endress+Hauser Level Sensors - Industrial 10-30VDC; 3-wire PNP Valve plug ISO4400 M16, IP65 NEMA Type 4X Encl. Vibronic level switch Thread ISO228 G3/4, 316L, install > accessory weld-in adapter Non-Stocked Lead-Time 1 Week
299,73 €
Min.: 1
Mult.: 1
FTL31