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Small rectangular metal thermostat with adjustment dial and mounting tabs

SUPCO

SUPCO SHL511 Plenum Thermostat 140-160°F SPST

SKU CH-HACV-84T4C

A plenum thermostat with a 140 to 160°F range and SPST switching for HVAC control

  • SPST switching simplifies wiring for reliable on/off control
  • 140 to 160°F range suits high-temperature plenum applications
  • 20°F differential prevents short-cycling and extends component life
  • 3-1/8 inch insertion length fits standard duct openings

Plenum Thermostat for HVAC Systems

The SUPCO SHL511 is a single-pole single-throw plenum thermostat designed for HVAC control applications. It operates across a temperature range of 140 to 160 degrees Fahrenheit with a differential of 20. This device suits technicians and installers who need reliable temperature sensing in heating equipment.

Compact Insertion Design for Duct Mounting

The unit features an element insertion length of 3-1/8 inches with a width of 1-5/8 inches and depth of 1-7/16 inches. These dimensions allow direct mounting into plenum ductwork for accurate airflow temperature measurement. Buyers needing a different temperature range or a multi-stage control switch will require an alternative model.

Highlights

  • SPST switching simplifies wiring for reliable on/off control
  • 140 to 160°F range suits high-temperature plenum applications
  • 20°F differential prevents short-cycling and extends component life
  • 3-1/8 inch insertion length fits standard duct openings

Specifications

BrandSUPCO

Questions about this item

What temperature range does the SPST plenum thermostat cover?

The SUPCO SHL511 opens and closes between 140°F and 160°F with a 20-degree differential.

How deep is the insertion element so I can check duct fit?

The sensing element extends 3-1/8 inches into the plenum for proper airflow sampling.

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