"> WEG Marine CFW11M 4kW 690V Marine
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WEG Marine

CFW11M 4kW 690V Marine

WEG Marine CFW11M 4kW 690V Marine is a marine variable-frequency drive. It is normally installed inside an electrical cabinet, machinery-control panel or dedicated drive room close to the motor or distribution system it controls. Its primary purpose is to regulate AC motor speed and torque by controlling the frequency and voltage supplied to the motor. Compared with direct-on-line or fixed-speed motor starters, a VFD adds power electronics, cooling, software parameters and motor-feedback or communication interfaces that require separate attention. The supplied record already contains the available concise model or rating information, so those existing figures are not duplicated here and no additional meaning is inferred from the model code. For exact ratings, dimensions, settings, capacities, materials and variant-specific limits, refer to the manufacturer documentation for the exact figure.

4.0 kW
Power

Components & Design

Component data being added…

Technical Data

power kw 4
current a 3.3
cooling air
ip rating IP55

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Common failures & inspection points

Cooling-fan failure, blocked air paths or dirty heat sinks causes rising drive temperature and overtemperature trips
Power-semiconductor or DC-link deterioration causes overcurrent, DC-bus or hardware-fault alarms and loss of motor operation
Loose or overheated power terminals cause discoloration, insulation damage, nuisance trips or phase-related faults
Incorrect parameters, control signals or fieldbus communication causes unstable speed, failure to start or loss of remote control
Motor-cable insulation faults or earth leakage causes ground-fault trips and can stress the drive output stage

Service & Maintenance

Inspect cabinet cleanliness, cooling fans, heat sinks, power terminals, earthing, control wiring and signs of overheating. Review fault history and confirm motor and process parameters against the approved configuration. Check ventilation and environmental conditions around the drive. Refer to the manufacturer documentation for the exact figure for voltage limits, torque settings, switching parameters and insulation requirements.

Suppliers & Spare Parts

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Replacement Parts

Carry cooling fans, control fuses, contactors where used, approved power-supply or control boards where vessel criticality justifies them, keypad or display modules and backed-up parameter files.
Equipment Model #84251 · ✓ still in production