Bard Auto Limit Switch

The Bard Auto Limit Switch (also called a limit control, high-limit switch or overtemperature safety switch) is an OEM temperature safety component for Bard wall-mount HVAC equipment and heater packages. It monitors temperature and opens the electrical circuit if conditions become unsafe. This helps protect the heat exchanger, heating elements and nearby components from overheating.

Key Features:

• Acts as a safety cutoff that opens the circuit when the set temperature is reached
• Automatic-reset styles close again once temperatures drop, which limits nuisance lockouts
• One-shot styles are also available for fixed trip-point protection
• Factory-specified trip points are matched to Bard heating and air handler applications
• Suited to electric heat and wall-mount heater package applications
• Made to OEM specifications, so it keeps the original equipment's safety protection

Use a Bard limit switch as a replacement when a unit is tripping on high limit or a safety control has failed. It restores the original overtemperature protection. Check that the trip point and reset style match the original control, and find the cause of any overtemperature event, such as restricted airflow or a blower problem, before returning the unit to service.