McDonnell & Miller FS7-4S Snap Switch Refrigerant Rugged Construction: NEMA 1 rated

Rugged Construction: NEMA 1 rated housing protects internal solid-state components in demanding mechanical environments

Constructed from high-grade brass and copper to resist corrosion in high-humidity environments

Field Versatility: The convertible reset mechanism allows for either automatic reset or manual lockout on the high side

but matching the SKU is the most reliable method

This assembly typically features factory-set intervals (e

McDonnell & Miller FS7-4S Snap Switch Refrigerant Rugged Construction: NEMA 1 ratedThe McDonnell & Miller FS7 4S is a heavy duty industrial liquid flow switch engineered for high pressure applications where standard brass units fall short. Featuring a rugged stainless steel body and 120160 part number, this 1 1 4" NPT flow switch is rated for a maximum pressure of 1000 psi and fluid temperatures up to 300F. The single pole, double throw (SPDT) snap switch mechanism provides reliable liquid flow detection for large pipe systems,