DL240 – LIMIT SWITCH

Snap-disc furnace high-limit switch from the DL series; the number is the opening (cut-out) temperature in degrees F. It is a safety device that breaks the heating circuit when the plenum overheats, and a limit that keeps tripping points at restricted airflow or a failed blower rather than at the switch. No manufacturer datasheet is published for this number, so reset type and disc size are unconfirmed. Never substitute a higher-temperature limit – that removes the furnace’s overheat protection. Specifications from our own stock records. The manufacturer does not publish a public page for this item.