Trane CNT3520 Pressure Switch High Thermal Stability: Class H

High Thermal Stability: Class H insulation prevents winding failure during continuous duty cycles

it effectively captures scale

Durable Construction: Heavy-duty materials designed to withstand the rigors of outdoor exposure and high-RPM service

Standardized Coil Voltage: The 24V coil integrates seamlessly with standard low-voltage HVAC control boards and thermostats

this robust bracket provides the necessary rigidity to support long-term fan operation and minimize mechanical noise across various RTU and AHU configurations

Trane CNT3520 Pressure Switch High Thermal Stability: Class HThe Trane CNT3520 is a critical OEM HVAC pressure switch engineered for precise negative pressure detection in residential and commercial air handlers and furnaces. As a single pole double throw (SPDT) switch, this component provides versatile electrical control, allowing for normally open or normally closed circuit configurations depending on the sequence of operation. Calibrated to a fixed setpoint of 0. 15" WC (water column), the CNT3520 serves as