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Allen-Bradley Hardware Product

Float Switches

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Our Bulletin 840 Float Switches are heavy-duty industrial control devices. They open and close contacts in response to changes in liquid level. These switches are available in five different styles with both motor and pilot duty contact ratings.

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Condition Sensing Technical Data Bulletin 840 Float Switch Installation Instructions
840 Float
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Overview

  • Contact ratings NEMA A600 and N300
  • Operating sensitivity from 2...5 in.
  • Most models can be converted between tank and sump operation
  • Eleven standard float switch operator assemblies available
  • Rods, floats and cables are stainless steel
  • Available in Type 1, 4 and 7/9 enclosures

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Specifications

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Certifications

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  • CE Marked for all applicable directives 
  • CSA Certified
  • UL Listed
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To find additional product information including CAD drawing files, 3D models and more use our Product Catalog.

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Documentation

Resource Publication Number Language
Condition Sensing Technical Data 836-TD001
Bulletin 840 Float Switch Installation Instructions 840-IN001
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Applications

Typical applications for Bulletin 840 Float Switches include:

  • Storage tanks
  • Water treatment plants
  • Water/waste water treatment plants
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