The blue color distinguishes this specific PCP-IEC generation from older versions

as well as in conveyor and manufacturing equipment requiring a 2 HP drive

If you are replacing a 174260 board

5 MFD / 370 VAC run capacitor (sold separately)

it’s built to withstand demanding operational environments

Superior Radiant CE021 Air Switch 322027-701 The blue color distinguishes thisThe Superior Radiant CE021 Air Switch is a critical safety and operational component designed for high performance radiant tube heaters. Engineered with a 0. 55" WC negative pressure rating, this differential pressure switch ensures that the combustion blower is moving sufficient air before allowing the ignition sequence to proceed. As a veteran technician knows, maintaining precise airflow differential is vital for preventing incomplete combustion