The Trane SWT03012 2-Pole Manual Limit Switch is a temperature-sensitive safety component designed to help regulate HVAC system operation. It monitors temperature conditions and opens its electrical contacts when the specified temperature threshold is reached, interrupting the control circuit to help protect equipment from unsafe operating conditions. Featuring a manual reset mechanis... https://www.partshnc.com/trane-swt03012-2p-limit-switch-manual-exposed-open-48-f-close160-f