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Small rectangular HVAC limit rollout switch with manual reset button and two terminals

Value Brand

Value Brand HVAC Control Limit Rollout Manual Reset Opens 250

SKU CH-A53D-4DS09

A manual-reset rollout limit switch that opens at 250 °F and handles 120–240 V circuits

  • Manual reset restores operation after overheat
  • Opens at 250 °F to protect equipment
  • SPST switch action opens on temperature rise
  • Rated for 120 to 240 VAC systems
  • Compact snap-disc design fits tight spaces

HVAC Snap-Disc Limit Control

The ZORO SELECT snap-disc control is a manual-reset limit switch designed for HVAC safety circuits. It opens on temperature rise at 250 degrees F to protect heating equipment from overheating. The SPST switch handles 120 to 240 volts for residential and light-commercial applications.

Build Integration Requirements

The control mounts in a 1 1/4 by 3/4 by 3/4 inch space and requires manual reset after each trip event. Wiring must accommodate the listed voltage range and the switch action that opens on rise. Installers should verify clearance for the snap-disc element within the appliance cabinet.

Manual Reset Functionality

The manual reset mechanism prevents automatic restart after an over-temperature event, forcing a physical inspection before the system returns to service. This feature adds a deliberate safety step for technicians and building operators. No additional accessories or software are included with the switch.

Highlights

  • Manual reset restores operation after overheat
  • Opens at 250 °F to protect equipment
  • SPST switch action opens on temperature rise
  • Rated for 120 to 240 VAC systems
  • Compact snap-disc design fits tight spaces

Specifications

BrandZORO SELECT

Questions about this item

At what temperature does the rollout limit open during sustained overheating?

The snap-disc opens on rise at 250 degrees Fahrenheit and must be manually reset after each trip.

What voltage range does the switch handle when running continuously?

It is rated for 120 to 240 volts AC across the SPST contacts.

What electrical rating must the furnace circuit provide for this limit to operate?

The control carries 10 amps at 120 volts and 15 amps at 240 volts on a standard SPST circuit.

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