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CN3086 Electric Motor for Gas Compression

CN3086 Electric Motor for Gas Compression

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.

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Voltage/Frequency4000V & 4160V ± 10%/60 Hz

Type of EX-ProtectionClass 1 Division 2 Group A,B,C,D T3 (NEC or CEC)

Electric Motor TypeSquirrel Cage Induction Motor

Enclosure Type/Method of CoolingWP-II

Rated Torque17658lb/ft

Maximum Altitude - Before Derate3300ft

Maximum Ambient Temperature104°F

Connection of Stator WindingStar


StandardsNEMA MG1

InsulationClass F

Temperature RiseClass B at rated load


Locked Rotor Torque50%

Full Load Current390 Amps

Service Factor1.15 SF (1.0 VFD)

Locked Rotor Amps490% Code E

No Load Current108 Amps

Mounting DesignationF1 or F2

Number of Poles8

Full Load Speed892r/min


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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