One of the many monitoring devices from Cole Hersee, the Cole Hersee 8604-BK Air Pressure Switch. It is a miscellaneous air pressure switch that has a mounting stem of 1/4"-18 dryseal thread, 15/32" long. This unit is normally On and contacts opens when pressure rised at 55-65 psi or 379-448 kPa.
This unit is designed for reliable operation of air pressure warning systems. It helps prevent short circuits caused by moisture and contaminants.
- Normally On (contacts open at rising pressure at 55-65 psi (379 - 448 kPa)
- Mounting stem: 1/4"-18 dryseal thread, 15/32" long. Insulated
- 8-32 screw terminal