Burnham Boiler 6016060 Rollout Switch 240C is a safety control device designed to monitor excessive heat or flame rollout in gas-fired heating equipment. It works by sensing temperatures up to 240°C near the burner area and interrupting the electrical circuit if unsafe conditions are detected, helping prevent equipment damage and hazardous operation. https://www.partshnc.com/6016060-burnham-boiler-240c-rollout-switch