Differential pressure switches
Penn oil differential pressure switch P28DP-9860 90 seconds
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Order No.: 285.2205
Manufacturer number: P28DP-9860
Manufacturer: Penn
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Description
These oil pressure monitors are differential pressure switches with a timing relay and manual reset that provide reliable protection from low lubricating oil pressure in pressure-lubricated refrigerant compressors. The pressure switches measure the pressure differential (“effective oil ...
These oil pressure monitors are differential pressure switches with a timing relay and manual reset that provide reliable protection from low lubricating oil pressure in pressure-lubricated refrigerant compressors. The pressure switches measure the pressure differential (“effective oil pressure”) between the pressure generated by the oil pump and refrigerant pressure in the crankcase. A time delay relay allows the pressure to build as the compressor starts up and prevents the compressor from being prematurely shut off during brief drops in oil pressure.
Features
Gehäuseschutzart: P28DP: IP 30 (DIN40050,IEC 529), P28DJ: IP 66 (DIN40050,IEC 529)
Accessories / Replacement parts
Technical data
General information
Type
P28DP9860
Pressure
Switch-off point
0,6 bis 4,8 bar
Switch-off of the timing relay
0,35 über Δp bar
max. test pressure
23 bar
Electrical Data
Switching capacity
15 (8) A, 230V AC
Supply voltage
230/1/50 V/Ph/Hz
Pipe connections
Pipe connection
NPT
Time
Time delay
90 s
Technical modifications reserved. Product images may differ from the actual product and are meant for demonstration purposes only. Absolutely no liability can be assumed for possible indication errors and errors in the manufacturers’ information.
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