Liebert 127972P1S Pressure Switch 340155-7026 this is a non-reset cutout

this is a non-reset cutout designed to provide an absolute safety stop

The 3-legged support design features flat metallic plates with integrated arm extensions that act as vibration isolators

Can I use this rebuild kit on a normally open (NO) valve

Rotation is easily reversed by swapping the two leads following the wiring diagram on the motor's nameplate to match your specific blower assembly's requirements

the kit includes precisely machined burner orifices

Liebert 127972P1S Pressure Switch 340155-7026 this is a non-reset cutoutThe Liebert 127972P1S Pressure Switch is a high precision OEM replacement engineered for critical pressure monitoring in Liebert environmental control systems and industrial HVAC high side applications. This robust switch is factory calibrated with a 150 PSI Cut Out (CO) and a 100 PSI Cut In (CI), providing a reliable 50 PSI differential to maintain system stability and prevent rapid cycling. As a direct successor to the 127972P1, this component