this MicroTemp G5AM0600 thermal fuse prevents catastrophic failure of the heat exchanger and other high-value internal components

Standard Shank Well Included: Comes with a 1/2" NPT well to protect the sensing bulb and ensure accurate heat transfer

installing a SET29A-624R is the professional standard for ensuring long-term reliability and accurate thermal feedback within the control loop

offering flexibility for different site electrical configurations

McDonnell & Miller 63-B Low Water Cut Off 323080-701 this MicroTemp G5AM0600 thermal fuseThe McDonnell & Miller 63 B (Part Number 142700) is a heavy duty, float operated mechanical low water cut off engineered for reliable performance in residential and commercial hot water and steam boilers. As a veteran grade boiler safety control, this unit features an automatic reset and a 1" NPT threaded connection, rated for a maximum pressure of 50 PSI. The integrated float block design ensures stable operation by reducing float movement caused by