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Johnson Controls P45NCA-12C - Lube Oil Protection Control With 2 Minute Time Delay

Item: JOHP45NCA12C

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Johnson Controls Lube Oil Protection Control With 2 Minute Time Delay
The P45 controls provide dependable economical low lube oil pressure cutout for pressure lubricated refrigeration compressors. The factory set pressure adjustment provides operation to the compressor manufacturer's specification. The P45 control measures the net oil pressure available to circulate oil through the lubrication system. (Net oil pressure is the difference between the oil gage pressure and the refrigerant pressure in the crankcase.) A built-in time delay relay, compensated for ambient temperature, allows for pressure pickup on start and avoids nuisance shutdowns on short duration pressure losses during the running cycle.
  • The P45 is interchangeable in mounting and wiring with most Penn P28 controls.
  • Proven reliable pressure sensing elements several million in use.
  • Time delay relay incorporates trip free manual reset.
  • Exterior of Series P45. Power element connection with 1/4 in. flare nut (Style 13) is standard.
  • Ambient compensation gives uniform time delay regardless of temperature variations at control location.
  • Enclosed pressure actuated contacts are protected against wiring interference.
  • Single unit mounting and wiring -- saves installation time and materials

  • Manual Reset
  • Connection Size: 36" Cap. w/Flare Nut
  • Pressure Range PSIG: 9 Fixed
  • Refrigerant: Non-Corrosive, All Range
  • Max Allowable Overrun Pressure: 425 PSIG


NameJohnson Controls P45NCA-12C - Lube Oil Protection Control With 2 Minute Time Delay
Gemaire Item NumberJOHP45NCA12C
Manufacturer Product NumberP45NCA-12C
SKU - PIM Number1389111987098
ERP Number291062
Unit of MeasureEA
Weight2.7 Pounds (Lb)
Length8.3 Inches (In)
Width6.3 Inches (In)
Height2.8 Inches (In)
Country of OriginMEX
BrandJohnson Controls
RefrigerantVarious; see specifications for proper application
Voltage120/240 VAC
Refrigerant CapacityNone Provided by Manufacturer
Case MaterialCold Rolled Steel
DiameterNone Provided by Manufacturer
IncludesUniversal Mounting Bracket
CapacityNone Provided by Manufactuer
Capillary Length36"
CompositionNone Provided by Manufactuer
Connection Size1/4"
Connection TypeFlare Nut
Inlet Connection Size0.25
Maximum Working Pressure425
Outlet Connection Size0.25
Range20 in. HG Vacuum to 100 psi (-68 to 690 kPa)
Temperature RangeNone Provided by Manufacturer
Time Delay120 Seconds
UL ListedNo
UL RecognizedNo
GEM - Case Quantity


Parts List