Pressure Range:20-175PSI 

Connection:a manifold on the bottom of the switch,which is ONE-PORT with Female or Male 1/4″（NPT、BSP） 

Preset pressure settings:20-40PSI;30-50PSI;40-60PSI;50-80PSI;70-100PSI;80-115PSI;

85-115PSI;90-140psi;95-125PSI; 110-140PSI;115-150PSI;135-175PSI. (Optional and Adjustable)
Electric Ratings:

Rated Current/Voltage:20A/1PH 120V ; 17A/1PH 240V ; 9.6A/3PH 240V

Single Phase:115V 3/2HP ; 230V 2HP
Three Phase:230V 3HP ; 575V 
DC:32V 1/4HP, 115V 1/4HP, 230V 1/4HP