Dual Pressure Controll O17-R4705 HP/LP

Dual RANCO O17-R4705-086 pressure switch for high and low pressure in a single housing. It serves as protection for the cooling system against excessive rise or too low pressure. The automatic reset at low pressure ensures that after returning to the preset parameters, the pressure switch automatically resets the system to normal operation without the need for operator intervention (e.g., turns on the compressor or the fan). A manual restart at high pressure requires deliberate operator intervention. This prevents the device, such as the compressor, from being put back into operation without analyzing the causes that led to the emergency operation of the pressure switch.

A metal mounting plate is included in the package.

Technical data:

• Adjustment range for the low-pressure part: -0.3 to 7.0 bar; Δp 1.0 to 5.0 bar
• Adjustment range for the high-pressure part: 6.0 to 32.0 bar; Δp 5.0 bar
• Connections for cap nut: 1/4" SAE
• Relays: SPDT

Equivalent pressure switches from other manufacturers:

Eliwell  O17-H4758

Danfoss KP-15 060-124166

Jonson Controls P78LCA-9300

Emerson Alco PS2-A7A

Sanhua PS15-AAL-S51