L404F PressureTrol® Controllers provide operating control with automatic limit protection for pressure systems of up to 2070 kPa, or 300 psi.

L404T,V PressureTrol® Controllers are for use on oil burner systems for pressures up to 1035 kPa or 150 psi.

• Models available in a series of control ranges, and pressure scales in kPa and psi.
• All models automatically reset and have an adjustable differential.
• Models have snap switch to open or close a circuit on a pressure rise.
• Case has a clear plastic cover so setpoints can be observed.
•  Ground screw terminal.

L404F:  Controllers may be used with steam, air, or noncombustible gases, or fluids noncorrosive to the pressure sensing element.

L404T: High pressure limits, break a circuit on oil pressure rise above setpoint.

L404V: Low pressure limits, makes a circuit on oil pressure rise above setpoint.

Maximum ambient temperature: 66°C (150°F).