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CN1566 Electric Motor

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 ± 10%/60 Hz

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

Mounting DesignationF1 or F2

Number of Poles6poles

Electric Motor TypeSquirrel Cage Induction Motor

Full Load Speed1189r/min


StandardsNEMA MG1

Connection of Stator WindingStar

Locked Rotor Torque60%

No Load Current67 Amps

Locked Rotor Amps500% Code E

Service Factor1.15 SF (1.0 VFD)

Enclosure Type/Method of CoolingWP-II


Temperature RiseClass B at rated load

Maximum Ambient Temperature104°F

Maximum Altitude - Before Derate3000ft

Rated Torque6625lb/ft

Full Load Current202 Amps

InsulationClass F


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

Oversized, 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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