Single Point Level Switches
vertical mounting

These float switch for vertical installation have one switch point and are available in a wide range of materials.
They are inexpensive and are ideal for confined spaces.
| Cost-effective float switch made from POM/Buna with one switch point and a fixed length of 45 mm. | |
| Compact plastic construction – reliable and cost effective with NPT or G thread. | |
| Single level float switch made from specially developed plastics for aggressive or ultra-pure liquids. | |
| Robust single level float switch made from specially developed plastics for aggressive or ultra-pure liquids. | |
| Robust single level float switch, ideal for flat tanks and limited installation space. For use in oil and water. | |
| Robust single level float switch made from stainless steel for high pressures and temperatures. | |
| Single level float switch made completely from stainless steel for extremely high temperatures and pressures. |
Type SR 51
Cost-effective float switch made from POM/Buna with one switch point and a fixed length of 45 mm. Changeover of the NO/NC function by turning over the float.
>> Data sheet, English (447.12KB)
>> Data sheet, German (420.10KB)
| Switch rating | |
| > Opener / Closer | 100 V AC/DC; 10VA / W; 0.5 A |
| Switch function | |
| > Opener / Closer | The functions of the reed contacts are: closer, opener or change-over switch. |
| Cable | 1 m PVC 2 x 0.25 mm² |
| Enclosure | IP54 |
| Temperature | -30 to +90°C |
| Medium density | ≥ 500 kg/m³ |
| Pressure | max. 10 bar |
| Mountig direction | vertical, ± 30° |
| Tube length L | fixed Tube length (L=45 mm) |
| Process connection | M16 x 1.5 |

Type LS-3
Compact plastic construction – reliable and cost effective with NPT or G thread. Available with FDA/NSF approved materials on request.
>> Data sheet, English (582.72KB)
>> Data sheet, German (1.28MB)
| Opener / Closer | SPST 50 VA/0.5A/250 VAC |
| Change-over switch | SPDT 20 VA/0.5A/250 VAC |
| Switch function | factory setting is NO (normally open) |
| NO or NC (normally closed) can be selected by reversing the float | |
| Fly lead / cable | PVC, AWG 22, Length 60 cm / PVC, 0.34 mm |
| Enclosure | IP64 |
| Temperature | cable: -40 to +80°C |
| Fly lead: -40 to +121°C | |
| Medium density | ≥ 450 kg/m³ |
| Pressure | max. 3 to 10 bar |
| Mountig direction | vertical |
| Tube length L | fixed Tube length (L=54 mm) |
| Process connection | BSPP 1/8" / 1/8" NPT / M12x1.75 |

Type LS-1900T
Single level float switch made from specially developed plastics for aggressive or ultra-pure liquids.
>> Data sheet, English (270.63KB)
>> Data sheet, German (468.42KB)
| Opener / Closer | SPST 100 VA/0.5A/250 VAC |
| Change-over switch | SPDT 20 VA/0.5A/250 VAC |
| Switch function | function (NO,NC) indicate when ordering |
| Fly lead / cable | FEP, AWG 20, Length 100 cm / 0.34 mm², Silicone or PVC |
| Enclosure | IP64 |
| Temperature | cable -40 to +80°C |
| Fly lead -40 to +150°C | |
| Medium density | ≥ 800 kg/m³ |
| Pressure | max. 3 bar |
| Mountig direction | vertical |
| Tube length L | fixed Tube length (L=88 mm) |
| Process connection | BSPP ¼" |
| Material | PTFE |

Type LS-74780
Robust single level float switch made from specially developed plastics for aggressive or ultra-pure liquids.
>> Data sheet, English (270.63KB)
>> Data sheet, German (468.42KB)
| Opener / Closer | SPST 20 VA/0.5A/250 VAC |
| Switch function | factory setting is NO (normally open) |
| NO or NC (normally closed) can be selected by reversing the float | |
| Fly lead | PVC AWG 18, Length 60 cm |
| Enclosure | IP64 |
| Temperature | -40 to +80°C |
| Medium density | ≥ 850 kg/m³ |
| Pressure | max. 1 bar |
| Mountig direction | vertical |
| Tube length L | fixed Tube length (L=87.5 mm) |
| Process connection | ¼" NPT |
| Material | CPVC |

Type LS-1700
Robust single level float switch, ideal for flat tanks and limited installation space. For use in oil and water.
>> Data sheet, English (204.71KB)
>> Data sheet, German (474.15KB)
| Opener / Closer | SPST 50 VA/0.5A/250 VAC |
| Switch function | factory setting is NO (normally open) |
| NO or NC (normally closed) can be selected by reversing the float | |
| PVC-Fly lead / cabel | FEP, AWG 20, Length 60 cm / PVC, 0.34 mm² |
| Enclosure | IP64 |
| Temperature | cable -40 to +80°C |
| Fly lead -40 to +110°C | |
| Medium density | ≥ 450 kg/m³ |
| Pressure | max. 10 bar |
| Mountig direction | vertical |
| Tube length L | fixed Tube length (L=53 mm) |
| Process connection | BSPP 1/8" / 1/8" NPT |
| Material | Brass/Buna N |

Type LS-1750
Robust single level float switch made from stainless steel for high pressures and temperatures.
>> Data sheet, English (204.71KB)
>> Data sheet, German (474.15KB)
| Opener / Closer | SPST 50 VA/0.5A/250 VAC |
| Switch function | factory setting is NO (normally open) |
| NO or NC (normally closed) can be selected by reversing the float | |
| Fly lead / cabel | FEP, AWG 20, Length 60 cm / PVC, 0.34 mm² |
| Enclosure | IP64 |
| Temperature | cable: -40 to +80°C |
| Fly lead: -40 to +150°C | |
| Medium density | ≥ 850 kg/m³ |
| Pressure | max. 20 bar |
| Mountig direction | vertical |
| Tube length L | fixed Tube length (L=53 mm) |
| Process connection | BSPP 1/8" |
| Material | stainless steel |

Type LS-1950
Single level float switch made completely from stainless steel for extremely high temperatures and pressures.
>> Data sheet, English (270.63KB)
>> Data sheet, German (468.42KB)
| Opener / Closer | SPST 100 VA/0.5 A/250 VAC |
| Change-over switch | SPDT 20 VA/0.5 A/250 VAC |
| Switch function | factory setting is NO (normally open) |
| NO or NC (normally closed) can be selected by reversing the float | |
| Fly lead / cabel | FEP, AWG 20, Length 60 cm / Silicone, 0.5 mm² |
| Enclosure | IP64 |
| Temperature | cable: -40 to +150°C |
| Fly lead: -40 to +200°C | |
| Medium density | ≥ 750 kg/m³ |
| Pressure | max. 30 bar |
| Mountig direction | vertical |
| Tube length L | fixed Tube length (L=86 mm) |
| Process connection | BSPP 1/4" |


