CN3086 Electric Motor for Gas Compression

CN3086 Electric Motor for Gas Compression Standard Equipment


  • Bearing RTDs for temperature monitoring
  • Insulated non-drive end bearings to reduce bearing currents
  • Anti-friction on 1500 hp (optional)


  • Designed for minimal vibration
  • Dynamic balancing at full operational speed
  • Fabricated copper squirrel cages
  • Forged, keyless shaft
  • AISI 4140/DIN42CrMo4 shaft


  • Radial air ducts ensure uniform and efficient cooling
  • Vacuum pressure impregnated with specially formulated epoxy resin
  • 2X RTDS per Phase
  • Space heater
  • Welded and machined stator core retains its rigidity throughout motor life to ensure a sealed and homogeneous insulation system that results in high dielectric strength, excellent heat transfer and the elimination of hazardous internal partial discharges

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Get power built for your most demanding gas compression applications. Every Cat® electric motor is tested at each stage of production to make sure it performs reliably under load and according to your process requirements. High operating efficiency and low operating costs come with low noise levels and no emissions. Cat electric motors for gas compression are backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty.

Electric Motor Specifications

  • Electric Motor Type Squirrel Cage Induction Motor Squirrel Cage Induction Motor
  • Full Load Speed 892.0 r/min 892.0 r/min
  • Mounting Designation F1 or F2 F1 or F2
  • Number of Poles 8 8
  • Type of EX-Protection Class 1 Division 2 Group A,B,C,D T3 (NEC or CEC) Class 1 Division 2 Group A,B,C,D T3 (NEC or CEC)
  • Voltage/Frequency 4000V & 4160V ± 10%/60 Hz 4000V & 4160V ± 10%/60 Hz
  • Connection of Stator Winding Star Star
  • Duty Continuous Continuous
  • Enclosure Type/Method of Cooling WP-II WP-II
  • Full Load Current 390 Amps 390 Amps
  • Insulation Class F Class F
  • Locked Rotor Amps 490% Code E 490% Code E
  • Locked Rotor Torque 50% 50%
  • Maximum Altitude - Before Derate 3300.0 ft 1000.0 m
  • Maximum Ambient Temperature 104.0 °F 40.0 °C
  • No Load Current 108 Amps 108 Amps
  • Rated Torque 17658.0 lb/ft 23941.0 N·m
  • Service Factor 1.15 SF (1.0 VFD) 1.15 SF (1.0 VFD)
  • Shaft 8.5 in 216.0 mm
  • Standards NEMA MG1 NEMA MG1
  • Temperature Rise Class B at rated load Class B at rated load
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