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Instantly add the LS 500/510 Series Top Mount Float Level Switch and 50,000+ more product series to your store or catalog  
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LS 500/510 Series Top Mount Float Level Switch

Brand: ABB Group
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ABB's LS Series Mechanical Level Switches are the most rugged and durable liquid point-level detection products in the industrial marketplace today. 

ABB innovations such as the one-step switch point adjust and the hermetically sealed/dual compartment switching mechanism have eliminated the need for bulky housing covers that are associated with cracking, moisture ingress, high temperature fatigue, and ultimately switch failure. 

This configuration guide contains general guidelines and ordering data that will assist you in selecting the best float or displacer operated switch for your specific fluid level application. 

These switches are available in flanged or sealed chambers or as insertion models. ABB has over 100 configurations available.
Features
  • Unique concept of magnetic coupling, eliminating direct contact with process
  • Rugged and Robust Chamber Design for Demanding Applications
  • One Step Switch Point Adjust
  • Precision Fabricated Floats and Displacers
  • Compact Switching Mechanism Eliminates Bulky Housing and Traditional Bias Springs
  • Easily Retrofitted to Most Competitor Models
  • Eight (8) Standard Designs and Six (6) Compact Switching Mechanisms

1 - 12 of 5,400 Part Numbers
LS501/CST/C0ESJ11/A/X
LS501/CST/C0ESJ11/A/X
  • Switch Type - Float Switch
  • Process Connection - Flanged
  • Pressure at Indicated Temperature - 225 psig (15.5 bar) at 100° F (37.7° C) /207 psig (14.3 bar) at 450° F (232° C), Minimum S.G.: 0.4, (Float Material Code T2)
  • Access Connection Material - Carbon Steel Standard
  • Available Connection - FNPT Coupling Connected Via Extruded Outlet²
  • Access Connection Size, Type & Rating - Slip On Flange
  • Flange Type - RTJ
  • Flange Size - 1"
  • Pressure Rating - 150#
  • Switching Mechanism Type - 1 AMP SPDT Reed Switch
  • Reed Switch - MS30
  • Insulation - No Insulation
LS501/CST/C0ESJ13/A/X
LS501/CST/C0ESJ13/A/X
  • Switch Type - Float Switch
  • Process Connection - Flanged
  • Pressure at Indicated Temperature - 225 psig (15.5 bar) at 100° F (37.7° C) /207 psig (14.3 bar) at 450° F (232° C), Minimum S.G.: 0.4, (Float Material Code T2)
  • Access Connection Material - Carbon Steel Standard
  • Available Connection - FNPT Coupling Connected Via Extruded Outlet²
  • Access Connection Size, Type & Rating - Slip On Flange
  • Flange Type - RTJ
  • Flange Size - 1"
  • Pressure Rating - 300#
  • Switching Mechanism Type - 1 AMP SPDT Reed Switch
  • Reed Switch - MS30
  • Insulation - No Insulation
LS501/CST/C0ESJ16/A/X
LS501/CST/C0ESJ16/A/X
  • Switch Type - Float Switch
  • Process Connection - Flanged
  • Pressure at Indicated Temperature - 225 psig (15.5 bar) at 100° F (37.7° C) /207 psig (14.3 bar) at 450° F (232° C), Minimum S.G.: 0.4, (Float Material Code T2)
  • Access Connection Material - Carbon Steel Standard
  • Available Connection - FNPT Coupling Connected Via Extruded Outlet²
  • Access Connection Size, Type & Rating - Slip On Flange
  • Flange Type - RTJ
  • Flange Size - 1"
  • Pressure Rating - 600#
  • Switching Mechanism Type - 1 AMP SPDT Reed Switch
  • Reed Switch - MS30
  • Insulation - No Insulation
LS501/CST/C0ESJ51/A/X
LS501/CST/C0ESJ51/A/X
  • Switch Type - Float Switch
  • Process Connection - Flanged
  • Pressure at Indicated Temperature - 225 psig (15.5 bar) at 100° F (37.7° C) /207 psig (14.3 bar) at 450° F (232° C), Minimum S.G.: 0.4, (Float Material Code T2)
  • Access Connection Material - Carbon Steel Standard
  • Available Connection - FNPT Coupling Connected Via Extruded Outlet²
  • Access Connection Size, Type & Rating - Slip On Flange
  • Flange Type - RTJ
  • Flange Size - 1/2"
  • Pressure Rating - 150#
  • Switching Mechanism Type - 1 AMP SPDT Reed Switch
  • Reed Switch - MS30
  • Insulation - No Insulation
LS501/CST/C0ESJ53/A/X
LS501/CST/C0ESJ53/A/X
  • Switch Type - Float Switch
  • Process Connection - Flanged
  • Pressure at Indicated Temperature - 225 psig (15.5 bar) at 100° F (37.7° C) /207 psig (14.3 bar) at 450° F (232° C), Minimum S.G.: 0.4, (Float Material Code T2)
  • Access Connection Material - Carbon Steel Standard
  • Available Connection - FNPT Coupling Connected Via Extruded Outlet²
  • Access Connection Size, Type & Rating - Slip On Flange
  • Flange Type - RTJ
  • Flange Size - 1/2"
  • Pressure Rating - 300#
  • Switching Mechanism Type - 1 AMP SPDT Reed Switch
  • Reed Switch - MS30
  • Insulation - No Insulation
LS501/CST/C0ESJ56/A/X
LS501/CST/C0ESJ56/A/X
  • Switch Type - Float Switch
  • Process Connection - Flanged
  • Pressure at Indicated Temperature - 225 psig (15.5 bar) at 100° F (37.7° C) /207 psig (14.3 bar) at 450° F (232° C), Minimum S.G.: 0.4, (Float Material Code T2)
  • Access Connection Material - Carbon Steel Standard
  • Available Connection - FNPT Coupling Connected Via Extruded Outlet²
  • Access Connection Size, Type & Rating - Slip On Flange
  • Flange Type - RTJ
  • Flange Size - 1/2"
  • Pressure Rating - 600#
  • Switching Mechanism Type - 1 AMP SPDT Reed Switch
  • Reed Switch - MS30
  • Insulation - No Insulation
LS501/CST/C0ESJ71/A/X
LS501/CST/C0ESJ71/A/X
  • Switch Type - Float Switch
  • Process Connection - Flanged
  • Pressure at Indicated Temperature - 225 psig (15.5 bar) at 100° F (37.7° C) /207 psig (14.3 bar) at 450° F (232° C), Minimum S.G.: 0.4, (Float Material Code T2)
  • Access Connection Material - Carbon Steel Standard
  • Available Connection - FNPT Coupling Connected Via Extruded Outlet²
  • Access Connection Size, Type & Rating - Slip On Flange
  • Flange Type - RTJ
  • Flange Size - 3/4"
  • Pressure Rating - 150#
  • Switching Mechanism Type - 1 AMP SPDT Reed Switch
  • Reed Switch - MS30
  • Insulation - No Insulation
LS501/CST/C0ESJ73/A/X
LS501/CST/C0ESJ73/A/X
  • Switch Type - Float Switch
  • Process Connection - Flanged
  • Pressure at Indicated Temperature - 225 psig (15.5 bar) at 100° F (37.7° C) /207 psig (14.3 bar) at 450° F (232° C), Minimum S.G.: 0.4, (Float Material Code T2)
  • Access Connection Material - Carbon Steel Standard
  • Available Connection - FNPT Coupling Connected Via Extruded Outlet²
  • Access Connection Size, Type & Rating - Slip On Flange
  • Flange Type - RTJ
  • Flange Size - 3/4"
  • Pressure Rating - 300#
  • Switching Mechanism Type - 1 AMP SPDT Reed Switch
  • Reed Switch - MS30
  • Insulation - No Insulation
LS501/CST/C0ESJ76/A/X
LS501/CST/C0ESJ76/A/X
  • Switch Type - Float Switch
  • Process Connection - Flanged
  • Pressure at Indicated Temperature - 225 psig (15.5 bar) at 100° F (37.7° C) /207 psig (14.3 bar) at 450° F (232° C), Minimum S.G.: 0.4, (Float Material Code T2)
  • Access Connection Material - Carbon Steel Standard
  • Available Connection - FNPT Coupling Connected Via Extruded Outlet²
  • Access Connection Size, Type & Rating - Slip On Flange
  • Flange Type - RTJ
  • Flange Size - 3/4"
  • Pressure Rating - 600#
  • Switching Mechanism Type - 1 AMP SPDT Reed Switch
  • Reed Switch - MS30
  • Insulation - No Insulation
LS501/CST/C0ESM11/A/X
LS501/CST/C0ESM11/A/X
  • Switch Type - Float Switch
  • Process Connection - Flanged
  • Pressure at Indicated Temperature - 225 psig (15.5 bar) at 100° F (37.7° C) /207 psig (14.3 bar) at 450° F (232° C), Minimum S.G.: 0.4, (Float Material Code T2)
  • Access Connection Material - Carbon Steel Standard
  • Available Connection - FNPT Coupling Connected Via Extruded Outlet²
  • Access Connection Size, Type & Rating - Slip On Flange
  • Flange Type - Male/ Female
  • Flange Size - 1"
  • Pressure Rating - 150#
  • Switching Mechanism Type - 1 AMP SPDT Reed Switch
  • Reed Switch - MS30
  • Insulation - No Insulation
LS501/CST/C0ESM13/A/X
LS501/CST/C0ESM13/A/X
  • Switch Type - Float Switch
  • Process Connection - Flanged
  • Pressure at Indicated Temperature - 225 psig (15.5 bar) at 100° F (37.7° C) /207 psig (14.3 bar) at 450° F (232° C), Minimum S.G.: 0.4, (Float Material Code T2)
  • Access Connection Material - Carbon Steel Standard
  • Available Connection - FNPT Coupling Connected Via Extruded Outlet²
  • Access Connection Size, Type & Rating - Slip On Flange
  • Flange Type - Male/ Female
  • Flange Size - 1"
  • Pressure Rating - 300#
  • Switching Mechanism Type - 1 AMP SPDT Reed Switch
  • Reed Switch - MS30
  • Insulation - No Insulation
LS501/CST/C0ESM16/A/X
LS501/CST/C0ESM16/A/X
  • Switch Type - Float Switch
  • Process Connection - Flanged
  • Pressure at Indicated Temperature - 225 psig (15.5 bar) at 100° F (37.7° C) /207 psig (14.3 bar) at 450° F (232° C), Minimum S.G.: 0.4, (Float Material Code T2)
  • Access Connection Material - Carbon Steel Standard
  • Available Connection - FNPT Coupling Connected Via Extruded Outlet²
  • Access Connection Size, Type & Rating - Slip On Flange
  • Flange Type - Male/ Female
  • Flange Size - 1"
  • Pressure Rating - 600#
  • Switching Mechanism Type - 1 AMP SPDT Reed Switch
  • Reed Switch - MS30
  • Insulation - No Insulation
1 - 12 of 5,400 Part Numbers

View_Details

Specifications

Brand

Process Temperature

  • Up to 1,000° F (538° C)

Process Pressure

  • Up to 4,500 psi (310 bar)

Chamber Material

  • Carbon Steel, 316 Stainless Steel, Duplex Stainless Steel, Hastelloy C-276, Hastelloy B-3, and Chrome Molly Steel

Certifications & Approvals

  • NACE MRO175 & MRO103
  • ATEX
  • FM
  • CSA
  • PED

Environmental Protection

  • NEMA 4X

Housing Material

  • Stainless Steel

Switch Type

  • Cam Action Switch
  • Reed Switch
  • Pneumatic Switch

  • OIL AND GAS
    • Separator levels
  • PETROCHEMICAL
    • Catalytic Cracker
    • Distillation
    • Fractionation
    • Hydrotreater/Reformer
    • Coker
    • Flare Knockout Tank
  • POWER
    • Fuel Storage
    • Steam Turbine Drip Legs
    • Hotwell Condenser
    • Feed Water Heaters
    • Demineralization Tanks
    • Ash Precipitator/Scrubber
    • Steam Drum Level
    • Lube Oil Systems
  • CHEMICAL & OTHER
    • Storage & Batch Tank Level
    • High Level Alarm Safety Shutdown
    • Water/Wastewater Treatment Tanks
    • Pulp Processing Tanks
    • Lube Oil Tanks
    • Sump Control

Documentation

Data Sheets

Product Manuals

Brochure

Certifications

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