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Stainless steel float switch with side mount and threaded tank connection

SQUARE D

SQUARE D Float Switch NEMA 1 Side Mount 2-1/2 in MNPT

SKU CH-TR7B-5EP7K

Liquid level switch closes on rise with a 7.13 in stainless steel float, 2-1/2 in MNPT tank connection, 50 psi max pressure, and 475 V rating

  • TypeLight Switch
  • Reliable level detection across a -22 to 220 °F range
  • Side mounting with 2-1/2 in MNPT tank connection simplifies installation
  • Stainless steel float and stem resist corrosion in harsh liquids
  • DPST-2NC contacts handle up to 475 V for versatile control
  • NEMA 1 rating protects internal components in indoor environments

Float Switch NEMA 1 Side Mount

The Square D float switch is a liquid level control built for industrial tanks and sump applications. It mounts through a 2-1/2 in MNPT side connection and carries a NEMA 1 enclosure rating for indoor use. The unit operates on rising liquid to close its DPST-2NC contacts, providing direct level-based switching.

Suits tanks needing side-mounted level control

Installers who need a corrosion-resistant float with stainless steel stem and float will find the materials suitable for water or compatible fluids. The 50 psi pressure limit and -22 to 220 degrees F temperature range cover many standard process conditions. Buyers requiring top-mount installation or a higher NEMA rating should look at other configurations.

DPST-2NC contact form at 475 V max

The switch carries a double-pole single-throw normally closed contact set rated for up to 475 V. It handles 2 hp at 120 V and 3 hp at 240 V single phase, making motor control its primary duty. Confirm the contact form and voltage rating match your control circuit before purchase.

Highlights

  • Reliable level detection across a -22 to 220 °F range
  • Side mounting with 2-1/2 in MNPT tank connection simplifies installation
  • Stainless steel float and stem resist corrosion in harsh liquids
  • DPST-2NC contacts handle up to 475 V for versatile control
  • NEMA 1 rating protects internal components in indoor environments

Specifications

BrandSquare D
TypeLight Switch

Questions about this item

Will the stainless steel float or stem need replacement after long exposure to liquid?

The float and stem are both stainless steel, resisting corrosion in most liquids; replacement is only needed if mechanical damage or chemical attack occurs.

What pressure limit is reached first during continuous tank operation?

The switch is rated for a maximum of 50 psi; sustained pressure above that level will exceed the design limit before any electrical rating is reached.

How much heat does the switch generate when it runs all day controlling a pump?

The switch itself produces negligible heat; the enclosure is rated for ambient temperatures from -22 to 220 degrees F, so the surrounding environment determines operating temperature.

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