Bryant HH18HA452 Roll Out Switch 250F REPLACEMENT HH18HA252

Product Description

The BRYANT HH18HA452 Flame Rollout Limit Switch ensures HVAC system safety and reliability. Meeting or exceeding OEM specifications, it monitors furnace temperature and responds to flame rollout, heat exchanger failure, or restricted ventilation. When temperatures exceed 250 °F (121°C), it cuts power to prevent overheating and fire risks.

• Functions as a normally closed manual reset switch that opens at 250°F (121°C) to cut off power and gas supply in case of flame rollout, overheating, or blocked airflow
• Constructed with industrial-grade metal and thermal-sensitive bimetal components for reliable performance under high temperatures and harsh furnace environments.
• Simple 2-wire screw terminal design allows for quick replacement using basic tools.

Product Highlights

This flame rollout limit switch is re-settable and monitors the heat surrounding the burners. It is compatible with Carrier, Bryant, and Payne residential gas furnaces.

Product Information

Standard Information

• Brand: BRYANT
• Manufacturer Part Number: HH18HA452

Technical Specifications

• Operation Mode: ON-OFF
• Current Rating: 0.01 Amps
• Operating Voltage: 1 Volts
• Contact Type: Normally Closed
• Connector Type: Screw Terminal
• Switch Type: Limit Switch
• Terminal: Through Hole
• Circuit Type: 1-way
• Mounting Type: Panel Mount
• Number of Positions: 1
• Control Type: Automatic
• Compatible Devices: Carrier, Bryant, Payne residential gas furnaces
• Smart Home Compatibility: Not Smart Home Compatible
• Compatible Model(s): Various Units - Bryant, Carrier, Etc
• Product Type: Furnace, Air Handler