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Danfoss (Denmark)
VLT Marine Drive
Danfoss VLT Marine Drives are widely used for auxiliary drives (pumps, fans, compressors) on ships of all types. Danfoss is the third largest VFD manufacturer worldwide and has a strong marine position particularly in cooling water pumps and HVAC fans.
0.5-1,000 kW
Capacity
380-690V
Voltage
Variable Frequency Drive
Medium
Components & Design
Component data being added…
Technical Data
type
Marine VFD
variant count approx
3
period start year
1990
drive type
Electric (IGBT)
construction
IGBT inverter, conformal coated PCBs, marine vibration tested
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Common failures & inspection points
●IGBT failure from voltage transients
●PCB corrosion from humidity despite conformal coating
●Fan failure
●Parameter loss from EEPROM failure
Service & Maintenance
Fan every 3-5 years. PCB inspection annually. Firmware updates per Danfoss advisory.
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Maritime Network →Replacement Parts
Danfoss global. Lead time: 1-3 weeks. Very good availability.
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Equipment Model #37974
· ✓ still in production