Trane CNT0532 Fan Limit 328140-751 using the Modine 3H0372660003 conversion

using the Modine 3H0372660003 conversion kit is the standard protocol for maintaining equipment integrity and performance

Engineered for heavy-duty industrial and commercial applications

eliminating the vibration and mechanical noise often associated with universal aftermarket alternatives

What is the difference between SPDT and 2SPDT in this model

Precise Fan Control: Automates ECM blower motor speed calculations based on current ventilation and thermal demands

Trane CNT0532 Fan Limit 328140-751 using the Modine 3H0372660003 conversionThe Trane CNT0532 (often superseded by CNT00532) is a heavy duty OEM replacement fan limit switch designed for precision thermal regulation in residential and light commercial air handlers. This A R Fan Limit is calibrated for high performance safety, featuring a critical 150F Open (Op) and 130F Close (Cl) threshold. By monitoring supply plenum temperatures, the CNT0532 prevents the heat exchanger from reaching unsafe levels during heating cycles