As a pre-programmed Variable Frequency Drive (VFD)

a step-down transformer is typically required

Can I use this switch for different setpoints

this unit features a single-pole double-throw (SPDT) snap-action switch

Trane THT2848 Limit Control 30067439-890 As a pre-programmed Variable FrequencyThe Trane THT2848 Limit Control is a critical safety component designed for precise thermal regulation within high performance HVACR systems. Engineered for high temperature 180 230F thresholds, this auto reset limit switch protects the heat exchanger and blower assembly from excessive thermal stress. By monitoring internal temperatures, the THT2848 ensures the unit operates within manufacturer specified safe zones, automatically interrupting the