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Small rectangular HVAC snap disc control, metal body, two terminals, auto reset opens at 190°F

Value Brand

Value Brand Snap Disc Control Auto Reset Opens 190°F

SKU CH-GCW2-63JDG

Auto-reset limit switch opens at 190 °F, closes at 150 °F, rated 120–277 V for HVAC safety control

  • Automatic reset restores operation after cooling
  • Opens at 190 °F to protect equipment
  • SPST switch action opens on temperature rise
  • Rated for 120 to 277 V AC circuits
  • 40 °F differential prevents rapid cycling

Snap Disc Limit Control

This snap disc limit control provides automatic reset protection for HVAC equipment. It opens on temperature rise using a single-pole single-throw switch action. The device operates across a 120 to 277 volt range for compatible heating and cooling systems.

Opens at 190°F with 40°F Differential

The control opens at 190 degrees Fahrenheit and automatically resets when temperature drops approximately 40 degrees. Adjustable temperature range spans 150 to 190 degrees Fahrenheit for application flexibility. It handles the stated voltage range without external relays.

Replaces Fixed Manual-Reset Limits

This auto-reset control replaces fixed manual-reset limit switches where automatic recovery is preferred. The jump is worth it when repeated manual resets cause service calls or downtime. It does not suit applications requiring a lockout until manual inspection.

Highlights

  • Automatic reset restores operation after cooling
  • Opens at 190 °F to protect equipment
  • SPST switch action opens on temperature rise
  • Rated for 120 to 277 V AC circuits
  • 40 °F differential prevents rapid cycling

Specifications

BrandZORO SELECT

Questions about this item

Will this 190°F-opening snap disc work with my existing 120 V furnace control circuit?

Yes, the switch is rated for 120 to 277 V so it will operate on a standard 120 V furnace circuit.

How can I verify the control is cycling correctly once installed?

Use a thermometer at the mounting point; the contacts should open when temperature reaches 190 °F and close again after a 40 °F drop.

What comes in the package and do I need separate mounting hardware?

The box contains the snap disc control only; screws or brackets for mounting are not included and must be sourced separately.

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