Series L4 FLOTECT Float Switch

Brand: Dwyer Instruments, LLC

Rugged and reliable the Series L4 Flotect® Float Switch operates automatically to indicate tank level.

Perfect for starting or stopping pumps, opening or closing valves, or actuating level alarm signals.

A unique magnetically actuated switching design gives superior performance. 

There are no bellows, springs, or seals to fail. Instead, the free-swinging float attracts a magnet within the solid metal switch body, actuating a snap switch by means of a simple lever arm. Float arm hinge design limits the arm angle to prevent vertical hang up.
Features
  • Unique magnetically actuated switching design gives superior performance
  • No bellows, springs, or seals to fail
  • Free-swinging float attracts a magnet within the solid metal switch body, actuating a snap switch by means of a simple lever arm
  • Float arm hinge design limits the arm angle to prevent vertical hang up

Models matching criteria: 1,920
  • Body Material - 316 Stainless Steel Body, Side Wall Mounting, No Housing
  • Electrical Contacts - Standard
  • Switch Type - DPDT Contacts
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 316 Stainless Steel
  • Mounting - Horizontal Instllation
  • Pressure Limit - Standard
100+ In Stock
$131.00 CAD
Does not ship to VA, United States
  • Body Material - 316 Stainless Steel Body, Side Wall Mounting, No Housing
  • Electrical Contacts - Standard
  • Switch Type - DPDT Contacts
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 316 Stainless Steel
  • Mounting - Top Mount
  • Pressure Limit - 50 psig (3.5 bar)
100+ In Stock
$330.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting, No Housing
  • Electrical Contacts - Standard
  • Switch Type - DPDT Contacts
  • Temperature Options - High Temperature - 204° C (400° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 430 Stainless Steel
  • Mounting - Horizontal Instllation
  • Pressure Limit - 150 psig (10.3 bar)
100+ In Stock
$381.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting, No Housing
  • Electrical Contacts - Standard
  • Switch Type - SPDT Snap Switch
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 316 Stainless Steel
  • Mounting - Horizontal Instllation
  • Pressure Limit - 50 psig (3.5 bar)
100+ In Stock
$528.00 CAD
Does not ship to VA, United States
  • Body Material - 316 Stainless Steel Body, Side Wall Mounting, No Housing
  • Electrical Contacts - Standard
  • Switch Type - DPDT Contacts
  • Temperature Options - High Temperature - 204° C (400° F)
  • Relay - Decreasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 316 Stainless Steel
  • Mounting - Top Mount
  • Pressure Limit - 50 psig (3.5 bar)
100+ In Stock
$632.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting
  • Electrical Contacts - Standard
  • Switch Type - SPDT Snap Switch
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Standard
  • Magnet Keeper Material - 316 Stainless Steel
  • Certificates - Standard Housing Approvals (ATEX, CE, CSA, FM, IECEx, UL)
  • Mounting - Horizontal Instllation
  • Pressure Limit - 50 psig (3.5 bar)
100+ In Stock
$903.00 CAD
Does not ship to VA, United States
  • Body Material - 316 Stainless Steel Body, Side Wall Mounting, No Housing
  • Electrical Contacts - Standard
  • Switch Type - SPDT Snap Switch
  • Temperature Options - High Temperature - 204° C (400° F)
  • Relay - Standard
  • Magnet Keeper Material - 316 Stainless Steel
  • Mounting - Top Mount
  • Pressure Limit - Standard
100+ In Stock
$919.00 CAD
Does not ship to VA, United States
  • Body Material - 316 Stainless Steel Body, Side Wall Mounting, No Housing
  • Electrical Contacts - Standard
  • Switch Type - SPDT Snap Switch
  • Temperature Options - High Temperature - 204° C (400° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 430 Stainless Steel
  • Mounting - Horizontal Instllation
  • Pressure Limit - 50 psig (3.5 bar)
100+ In Stock
$1,079.00 CAD
Does not ship to VA, United States
  • Body Material - 316 Stainless Steel Body, Side Wall Mounting
  • Electrical Contacts - Gold-Plated Contacts for Dry Circuits
  • Switch Type - DPDT Contacts
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 316 Stainless Steel
  • Mounting - Horizontal Instllation
  • Pressure Limit - 150 psig (10.3 bar)
100+ In Stock
$1,355.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting
  • Electrical Contacts - Standard
  • Switch Type - DPDT Contacts
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 316 Stainless Steel
  • Certificates - Standard Housing Approvals (ATEX, CE, CSA, FM, IECEx, UL)
  • Mounting - Top Mount
  • Pressure Limit - 50 psig (3.5 bar)
100+ In Stock
$1,396.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting
  • Electrical Contacts - Standard
  • Switch Type - SPDT Snap Switch
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Standard
  • Magnet Keeper Material - 430 Stainless Steel
  • Certificates - ATEX Compliant Construction
  • Mounting - Top Mount
  • Pressure Limit - 50 psig (3.5 bar)
100+ In Stock
$1,454.00 CAD
Does not ship to VA, United States
  • Body Material - 316 Stainless Steel Body, Side Wall Mounting, No Housing
  • Electrical Contacts - Gold-Plated Contacts for Dry Circuits
  • Switch Type - DPDT Contacts
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 316 Stainless Steel
  • Mounting - Horizontal Instllation
  • Pressure Limit - 150 psig (10.3 bar)
100+ In Stock
$1,549.00 CAD
Does not ship to VA, United States
  • Body Material - 316 Stainless Steel Body, Side Wall Mounting, No Housing
  • Electrical Contacts - Gold-Plated Contacts for Dry Circuits
  • Switch Type - DPDT Contacts
  • Temperature Options - High Temperature - 204° C (400° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 430 Stainless Steel
  • Mounting - Horizontal Instllation
  • Pressure Limit - 50 psig (3.5 bar)
100+ In Stock
$1,696.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting
  • Electrical Contacts - Standard
  • Switch Type - SPDT Snap Switch
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Decreasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 316 Stainless Steel
  • Certificates - Standard Housing Approvals (ATEX, CE, CSA, FM, IECEx, UL)
  • Mounting - Top Mount
  • Pressure Limit - 150 psig (10.3 bar)
100+ In Stock
$1,897.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting, No Housing
  • Electrical Contacts - Gold-Plated Contacts for Dry Circuits
  • Switch Type - DPDT Contacts
  • Temperature Options - High Temperature - 204° C (400° F)
  • Relay - Standard
  • Magnet Keeper Material - 316 Stainless Steel
  • Mounting - Top Mount
  • Pressure Limit - 50 psig (3.5 bar)
100+ In Stock
$1,992.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting, No Housing
  • Electrical Contacts - Standard
  • Switch Type - DPDT Contacts
  • Temperature Options - High Temperature - 204° C (400° F)
  • Relay - Decreasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 316 Stainless Steel
  • Mounting - Horizontal Instllation
  • Pressure Limit - Standard
100+ In Stock
$2,122.00 CAD
Does not ship to VA, United States
  • Body Material - 316 Stainless Steel Body, Side Wall Mounting, No Housing
  • Electrical Contacts - Standard
  • Switch Type - DPDT Contacts
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 430 Stainless Steel
  • Mounting - Horizontal Instllation
  • Pressure Limit - 300 psig (20.7 bar)
100+ In Stock
$133.00 CAD
Does not ship to VA, United States
  • Body Material - 316 Stainless Steel Body, Side Wall Mounting
  • Electrical Contacts - Standard
  • Switch Type - DPDT Contacts
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 430 Stainless Steel
  • Certificates - IECEx Certified Construction
  • Mounting - Horizontal Instllation
  • Pressure Limit - Standard
100+ In Stock
$553.00 CAD
Does not ship to VA, United States
  • Body Material - 316 Stainless Steel Body, Side Wall Mounting
  • Electrical Contacts - Gold-Plated Contacts for Dry Circuits
  • Switch Type - DPDT Contacts
  • Temperature Options - High Temperature - 204° C (400° F)
  • Relay - Decreasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 430 Stainless Steel
  • Mounting - Top Mount
  • Pressure Limit - 50 psig (3.5 bar)
100+ In Stock
$687.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting
  • Electrical Contacts - Standard
  • Switch Type - SPDT Snap Switch
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 316 Stainless Steel
  • Certificates - ATEX Compliant Construction
  • Mounting - Horizontal Instllation
  • Pressure Limit - 150 psig (10.3 bar)
100+ In Stock
$856.00 CAD
Does not ship to VA, United States
  • Body Material - 316 Stainless Steel Body, Side Wall Mounting
  • Electrical Contacts - Standard
  • Switch Type - DPDT Contacts
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Standard
  • Magnet Keeper Material - 430 Stainless Steel
  • Certificates - Standard Housing Approvals (ATEX, CE, CSA, FM, IECEx, UL)
  • Mounting - Top Mount
  • Pressure Limit - 150 psig (10.3 bar)
100+ In Stock
$1,176.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting
  • Electrical Contacts - Gold-Plated Contacts for Dry Circuits
  • Switch Type - DPDT Contacts
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 430 Stainless Steel
  • Mounting - Top Mount
  • Pressure Limit - Standard
100+ In Stock
$1,339.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting
  • Electrical Contacts - Gold-Plated Contacts for Dry Circuits
  • Switch Type - SPDT Snap Switch
  • Temperature Options - High Temperature - 204° C (400° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 430 Stainless Steel
  • Mounting - Horizontal Instllation
  • Pressure Limit - 150 psig (10.3 bar)
100+ In Stock
$1,513.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting, No Housing
  • Electrical Contacts - Gold-Plated Contacts for Dry Circuits
  • Switch Type - SPDT Snap Switch
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 316 Stainless Steel
  • Mounting - Horizontal Instllation
  • Pressure Limit - Standard
100+ In Stock
$1,533.00 CAD
Does not ship to VA, United States
  • Body Material - 316 Stainless Steel Body, Side Wall Mounting
  • Electrical Contacts - Standard
  • Switch Type - SPDT Snap Switch
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 430 Stainless Steel
  • Certificates - Standard Housing Approvals (ATEX, CE, CSA, FM, IECEx, UL)
  • Mounting - Horizontal Instllation
  • Pressure Limit - 50 psig (3.5 bar)
100+ In Stock
$1,729.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting
  • Electrical Contacts - Standard
  • Switch Type - DPDT Contacts
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 430 Stainless Steel
  • Certificates - ATEX Compliant Construction
  • Mounting - Horizontal Instllation
  • Pressure Limit - 50 psig (3.5 bar)
100+ In Stock
$1,889.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting
  • Electrical Contacts - Standard
  • Switch Type - DPDT Contacts
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Standard
  • Magnet Keeper Material - 430 Stainless Steel
  • Certificates - IECEx Certified Construction
  • Mounting - Top Mount
  • Pressure Limit - Standard
100+ In Stock
$2,079.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting
  • Electrical Contacts - Standard
  • Switch Type - DPDT Contacts
  • Temperature Options - High Temperature - 204° C (400° F)
  • Relay - Decreasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 316 Stainless Steel
  • Mounting - Horizontal Instllation
  • Pressure Limit - Standard
100+ In Stock
$2,160.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting
  • Electrical Contacts - Gold-Plated Contacts for Dry Circuits
  • Switch Type - DPDT Contacts
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Decreasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 430 Stainless Steel
  • Mounting - Horizontal Instllation
  • Pressure Limit - 150 psig (10.3 bar)
100+ In Stock
$2,402.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting, No Housing
  • Electrical Contacts - Gold-Plated Contacts for Dry Circuits
  • Switch Type - SPDT Snap Switch
  • Temperature Options - High Temperature - 204° C (400° F)
  • Relay - Standard
  • Magnet Keeper Material - 430 Stainless Steel
  • Mounting - Horizontal Instllation
  • Pressure Limit - 150 psig (10.3 bar)
100+ In Stock
$89.00 CAD
Does not ship to VA, United States
  • Body Material - 316 Stainless Steel Body, Side Wall Mounting
  • Electrical Contacts - Standard
  • Switch Type - DPDT Contacts
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Standard
  • Magnet Keeper Material - 430 Stainless Steel
  • Certificates - ATEX Compliant Construction
  • Mounting - Horizontal Instllation
  • Pressure Limit - 150 psig (10.3 bar)
100+ In Stock
$162.00 CAD
Does not ship to VA, United States
  • Body Material - 316 Stainless Steel Body, Side Wall Mounting
  • Electrical Contacts - Standard
  • Switch Type - SPDT Snap Switch
  • Temperature Options - High Temperature - 204° C (400° F)
  • Relay - Standard
  • Magnet Keeper Material - 316 Stainless Steel
  • Mounting - Top Mount
  • Pressure Limit - Standard
100+ In Stock
$377.00 CAD
Does not ship to VA, United States
  • Body Material - 316 Stainless Steel Body, Side Wall Mounting, No Housing
  • Electrical Contacts - Standard
  • Switch Type - DPDT Contacts
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 430 Stainless Steel
  • Mounting - Top Mount
  • Pressure Limit - Standard
100+ In Stock
$394.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting
  • Electrical Contacts - Gold-Plated Contacts for Dry Circuits
  • Switch Type - DPDT Contacts
  • Temperature Options - High Temperature - 204° C (400° F)
  • Relay - Decreasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 316 Stainless Steel
  • Mounting - Horizontal Instllation
  • Pressure Limit - 50 psig (3.5 bar)
100+ In Stock
$470.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting
  • Electrical Contacts - Standard
  • Switch Type - DPDT Contacts
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Standard
  • Magnet Keeper Material - 316 Stainless Steel
  • Certificates - IECEx Certified Construction
  • Mounting - Top Mount
  • Pressure Limit - 150 psig (10.3 bar)
100+ In Stock
$590.00 CAD
Does not ship to VA, United States
  • Body Material - 316 Stainless Steel Body, Side Wall Mounting, No Housing
  • Electrical Contacts - Standard
  • Switch Type - DPDT Contacts
  • Temperature Options - High Temperature - 204° C (400° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 430 Stainless Steel
  • Mounting - Horizontal Instllation
  • Pressure Limit - 300 psig (20.7 bar)
100+ In Stock
$762.00 CAD
Does not ship to VA, United States
  • Body Material - 316 Stainless Steel Body, Side Wall Mounting, No Housing
  • Electrical Contacts - Standard
  • Switch Type - SPDT Snap Switch
  • Temperature Options - High Temperature - 204° C (400° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 316 Stainless Steel
  • Mounting - Horizontal Instllation
  • Pressure Limit - 150 psig (10.3 bar)
100+ In Stock
$781.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting
  • Electrical Contacts - Standard
  • Switch Type - SPDT Snap Switch
  • Temperature Options - High Temperature - 204° C (400° F)
  • Relay - Standard
  • Magnet Keeper Material - 430 Stainless Steel
  • Mounting - Top Mount
  • Pressure Limit - Standard
100+ In Stock
$1,254.00 CAD
Does not ship to VA, United States
  • Body Material - Brass Body, Side Wall Mounting
  • Electrical Contacts - Standard
  • Switch Type - SPDT Snap Switch
  • Temperature Options - High Temperature - 204° C (400° F)
  • Relay - Decreasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 430 Stainless Steel
  • Mounting - Top Mount
  • Pressure Limit - 150 psig (10.3 bar)
100+ In Stock
$1,261.00 CAD
Does not ship to VA, United States
  • Body Material - 316 Stainless Steel Body, Side Wall Mounting, No Housing
  • Electrical Contacts - Gold-Plated Contacts for Dry Circuits
  • Switch Type - SPDT Snap Switch
  • Temperature Options - -20° to 135° C (4° to 275° F)
  • Relay - Increasing Flow Time Delay Relay Option with 2 SPDT Contacts
  • Magnet Keeper Material - 316 Stainless Steel
  • Mounting - Top Mount
  • Pressure Limit - Standard
100+ In Stock
$1,662.00 CAD
Does not ship to VA, United States

Specifications

Ambient Temperature Range

  • -20° to 73° C (-4° to 163° F)

Approvals & Certifications

  • ATEX
  • CE
  • CSA
  • Ex
  • FM
  • IEC Ex
  • UL

Deadband

  • 3/4” (19 mm) for Standard Float

Electrical Connectors

  • 16 AWG, 6” (152 mm) Long
  • Terminal Block

Electrical Rating

  • 1 A at 125 Vac
  • 1 A Resistive, 5 A Inductive at 30 Vdc
  • 10 A at 125/250 Vac
  • 5 A at 125/250 Vac
  • 5 A Resistive, 3 A Inductive at 30 Vdc

Enclosure, Body Material

  • 316 Stainless Steel
  • Brass

Environmental Protection

  • Explosion-proof
  • Weatherproof

Fluid Specific Gravity

  • 0.7 Min. with Standard Float

Media

  • Liquids & Gases

Mounting

  • Side Mounting

NPT Connection

  • 1-1/2” NPT Male
  • 2-1/2” NPT Male

Pressure Range

  • psig: 100 to 2,000 (kPa: 690 to 13,800, bar: 6.9 to 138)

Process Temperature

  • -20° to 73° C (-4° to 163° F)

Sensor / Probe Style

  • Float

Sensor Orientation

  • Horizontal Installation Standard
  • Vertical Top Mount

Switch Type

  • DPDT
  • SPDT

Temperature Range

  • -20° to 135° C (-4° to 275° F)

Wetted Materials

  • 316 Stainless Steel
  • 430 Stainless Steel
  • Nickel

  • Direct Pump Control for Maintaining Level
  • Automatic Tank Dump Operations
  • Level Control
  • Valve Control
  • Control Levels or Provide Alarms in: 
    • Sumps
    • Scrubber Systems
    • Hydro-Pneumatic Tanks
    • Low Pressure Boilers
    • and Various Water/Wastewater Treatment Processes
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