Float Switches
Allen‑Bradley

Our Bulletin 840 float switches are heavy-duty industrial control devices. They open and close contacts in response to changes in liquid level.

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Overview

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.

Contact ratings NEMA A600 and N300
Operating sensitivity from 2…5 in. (50.8…127 mm)
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
Typical applications include:
- Storage tanks
- Water treatment plants
- Water/waste water treatment plants

Certifications

CE Marked for all applicable directives
CSA Certified
UKCA Marked for all applicable regulations
UL Listed

Certifications apply when product is marked. See our Product Certification site for Declarations of Conformity, certificates and other certification details.

Float Switches Allen‑Bradley

Float Switches
Allen‑Bradley