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Small rectangular HVAC limit control switch, metal body, two terminals visible

Value Brand

Value Brand Snap Disc Limit Control Auto Reset Opens 145°F

SKU CH-BAP4-8E61Z

Automatic-reset limit control opens on temperature rise at 145°F for 120–240 V HVAC circuits

  • Auto reset restores operation after cooling
  • Opens at 145 °F to protect equipment
  • 20 °F differential prevents short cycling
  • Rated for 120 to 240 V circuits
  • Compact 1 × 2 3/4 × 1 1/2 in housing

Snap Disc Limit Control

The Value Brand snap disc limit control is an automatic reset switch designed for HVAC systems. It opens on temperature rise to interrupt power when the set point is reached. This SPST device suits technicians maintaining heating or cooling equipment.

Voltage and Temperature Range

The control operates across a voltage range of 120 to 240 volts. Its temperature range runs from 125 to 145 degrees Fahrenheit with a 20 degree differential. These limits define the practical window for safe automatic cycling.

Switch Capacity and Headroom

Rated for 25 amps at 480 volts, the switch handles substantial resistive loads in industrial HVAC circuits. It is not suited for applications requiring manual reset or close differentials below 10 degrees. Buyers needing tighter tolerances or different switch actions should look elsewhere.

Highlights

  • Auto reset restores operation after cooling
  • Opens at 145 °F to protect equipment
  • 20 °F differential prevents short cycling
  • Rated for 120 to 240 V circuits
  • Compact 1 × 2 3/4 × 1 1/2 in housing

Specifications

BrandZORO SELECT

Questions about this item

Should I pick the 125°F or 145°F opening point for my system?

Choose the temperature at which you need the circuit to open; the control opens on rise at either 125°F or 145°F depending on the variant you select.

What does the 20°F differential mean when the switch is installed?

After opening at the set point, the contacts will not close again until the temperature falls roughly 20°F below that point.

What load can the SPST contacts handle on a 240 V circuit?

The switch is rated for 25 A at 120–240 V AC, suitable for typical HVAC limit-control circuits.

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