Single-Point Level Switch
Single level float switches for horizontal and vertical installation are used for the level monitoring and the level display of liquids. With their robust and maintenance-free construction from steel or plastic, they are suitable for almost all liquids. They can be used to trigger visual and audible alarms, to control pumps or to activate “emergency stop” functions.
The details listed correspond to the maximum possible specification according to the product options.
UNS-VA/SB5 Bilge switch
Switching function | SPST (NO / NC) or SPDT |
Switching capacity | max. 230 VAC / 230VDC, max. 2.0 A, max. 40 VA / W |
Electrical connection | Polymer cable, 2m / 5m / 10m / 15m |
Enclosure | IP68 |
Temperature | ‘-20 °C … +70 °C |
Medium density | > 0.80 g/cm3
|
Max. Pressure | 3 bar |
Mounting direction | vertical ±15° |
Process connection | Retaining bracket |
Material | Stainless steel, PE, polymer; PA |
Approvals | LR, GL, BV, ATEX Ex ia |
Options | Test function, wire breakage check |
Downloads

UNS-VA/SB4 Bilge switch
Switching function | SPST (NO / NC) or SPDT |
Switching capacity | max. 230 VAC / 230VDC, max. 2.0 A, max. 40 VA / W |
Electrical connection | Polymer cable, 2m / 5m / 10m / 15m |
Enclosure | IP68 |
Temperature | ‘-20 °C … +70 °C |
Medium density | > 0.80 g/cm3
|
Max. Pressure | 3 bar |
Mounting direction | vertical ±15° |
Process connection | Retaining bracket |
Material | Stainless steel, PE, polymer; PA |
Approvals | LR, GL, BV, ATEX Ex ia |
Options | Wire breakage check |
Downloads

UNS-VA/SB-VA52
Switching function | SPST (NO / NC) or SPDT |
Switching capacity SPST | 250 VAC / 250 VDC / 3.0 A / 100 W / VA |
Switching capacity SPDT | 140 VAC / 140 VDC / 1.0 A / 60 W / VA |
Electrical connection | Shipbuilding cable 2m / 5m / 10m |
Enclosure | IP67 |
Temperature | ‘-20 °C … +80 °C |
Medium density | > 0.70 g/cm3 |
Max. Pressure | 10 bar |
Mounting direction | vertical ±15° |
Process connection | Retaining bracket |
Material | Stainless steel 1.4571 |
Approvals | UL, RINA, ATEX Ex ia |
Downloads

Type UNS-VA 1/8-VA27
Switching function | SPST (NO / NC) or SPDT |
Switching capacity SPST | 230 VAC / 230VDC, 2 A, 40 VA / W |
Switching capacity SPDT | 150 VAC / 100 VDC, 0,2 A, 3 VA / W |
Electrical connection | PVC or silicone cable 1m / 3m / 5m |
Enclosure | IP54 |
Temperature | -40°C … +150°C |
Medium density | > 0.71 g/cm3 |
Max. Pressure | 15 bar @ 20°C |
Mounting direction | Vertical, ±30°, from above or below |
Process connection | G1/8″ |
Material | Brass or stainless steel |
Approvals | UL |
Options | High temperature |
Downloads

UNS-VA1/4-VA52
Switching function | SPST (NO / NC) or SPDT |
Switching capacity SPST | 250 VAC / 250VDC / 3,0 A / 100 VA/W |
Switching capacity SPDT | 140 VAC / 140VDC / 1,0 A / 60 VA/W
|
Electrical connection | PVC or silicone cable 1m / 3m / 5m
|
Enclosure | IP54 |
Temperature | -40°C … +150°C
|
Medium density | >0.78 g/cm3
|
Max. Pressure | 40 bar @ 20°C
|
Mounting direction | Vertical, ±30°, from above or below
|
Process connection | G1/4″
|
Material | Stainless steel
|
Approvals | UL |
Options | High temperature |
Downloads

UNS-MS1/8-BN25
Switching function | SPST (NO / NC) or SPDT
|
Switching capacity SPST | 230 VAC / 230VDC, 2 A, 40 VA / W
|
Switching capacity SPDT | 150 VAC / 100 VDC, 0,2 A, 3 VA / W
|
Electrical connection | PVC cable 1m / 3m / 5m
|
Enclosure | IP54 |
Temperature | -20 … +100°C
|
Medium density | >0.57 g/cm3
|
Max. Pressure | 15 bar @ 20°C
|
Mounting direction | Vertical, ±30°, from above or below
|
Process connection | G1/8″, 1/8″ NPT
|
Material | Brass
|
Approvals | UL |
Downloads

UNS-PA16-PA18
Switching function | SPST (NO / NC)
|
Switching capacity SPST | 230 VAC / 230VDC / 3,0 A / 60 VA/W
|
Electrical connection | PVC cable 2 x 0.34 mm², 1 m
|
Enclosure | IP54 |
Temperature | -20°C … +120°C
|
Medium density | >0.70 g/cm3
|
Max. Pressure | 5 bar
|
Mounting direction | horizontal
|
Process connection | PA16 = Polyamide, M 16 x 2.0 AG / PA1/2″ NPT = Polyamide, 1/2″ NPT
|
Material | Poliamid 6.6 (colour: blue)
|
Approvals | UL |
Downloads

LS-3 Series
Compact plastic design – reliable and cost-effective with NPT or G thread. Available with FDA/NSF approved materials on request.
Switching function | SPST (NO / NC)
|
Switching capacity SPST
| 120 … 240 VAC, 20 VA |
Electrical connection | Strands / cables |
Enclosure | IP54 |
Temperature | -40°C … + 121°C |
Medium density | >0.45 g/cm3 |
Max. Pressure | 10.3 bar @ 20°C |
Mounting direction | vertical |
Process connection | G1/8″ / M12x1.75 / 3-8-16 UNC
|
Material | Polypropylene / Polysulfones / Buna-N / PVDF |
Approvals | UL, CSA |
Downloads

LS-7 Series
Compact float switch in various plastics or stainless steel, for side installation. Switching function SPST, factory setting is NO (normally open).
Switching function | SPST (NO / NC)
|
Switching capacity SPST
| 20VA |
Electrical connection | 22 AWG ca. 60cm |
Enclosure | IP54 |
Temperature | -40°C … 121°C |
Medium density | > 0.55 g/cm3 |
Max. Pressure | 6.8 bar @ 20°C |
Mounting direction | horizontal |
Process connection | 1/2″ NPT / 7/8″-14UNF THD / 5/8″-11 / 9/16″-24THD and more |
Material | Nylon, stainless steel, Propylen, Versaplast™,Noryl® |
Approvals | UL, cUL, FDA |
Downloads
