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Danfoss VLT2840 VLT 2800 Frequency Converter

Danfoss VLT2840 VLT 2800 Frequency Converter

Item NO.: 3785269
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Warranty: 1 year 


Condition : brand new in factory sealed box


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Detail

  • Product NameDanfoss VLT2840 VLT 2800 Frequency Converter
  • Item NO.3785269
  • Weight1.0000 kg = 2.2046 lb = 35.2740 oz
  • CategoryPLC
  • Brandothers
  • Creation Time2026-10-08
VLT 2800 | 4 KW / 5 HP | 380–480 VAC

Danfoss VLT2840 VLT 2800 Frequency Converter

A compact VLT 2800 frequency converter for 4 kW-class three-phase motor control in the 380–480 VAC range.

BrandDanfoss
ModelVLT2840
Product TypeVLT 2800 Frequency Converter
01

Product Profile

VLT2840 is a Danfoss VLT 2800-series frequency converter. In the 380–480 VAC T4 version, it is rated for a typical 4.0 kW / 5 hp motor application and 9.1 A output.

The compact IP20 drive includes DC-link coils that reduce input-current harmonics and an integral local control panel. The complete type-code suffix on the nameplate controls filter, brake and regional details and must be captured before replacement.

02

Technical Data

Manufacturer Danfoss
Model VLT2840
Product Family VLT 2800
Typical Motor Output 4.0 kW / 5 hp for the 380–480 V version
Input Three-phase 380–480 VAC, ±10%
Input Frequency 50/60 Hz, ±3 Hz
Rated Input Current 8.1 A for the T4 version
Rated Output Current 9.1 A for the T4 version
Rated Output Apparent Power 6.3 kVA
Efficiency 96% typical
Power Loss 200 W typical at rated load
Output Frequency 0.2–132 Hz or 1–1000 Hz depending on control configuration
Enclosure IP20
Dimensions 267.5 × 90 × 168 mm for the published 2822–2840 T4 size
Control Panel Integral six-digit LED panel; optional LCP 2 remote panel
Harmonic Mitigation Integral DC-link coils reduce RMS input current
Overload Capability 160% starting torque for 1 minute; 180% for 0.5 second under published conditions
03

System Role

  • Controls speed and torque of an AC induction motor.
  • Provides acceleration, deceleration, protection and application-specific control functions.
  • Uses the local panel or optional LCP 2 for parameter access and diagnostics.
  • Reduces input-current distortion through built-in DC-link coils.
04

Compatibility

  • Capture the full VLT2840 type-code suffix because voltage, EMC filter and braking options can differ.
  • Match motor current, load torque, overload duty and switching frequency rather than selecting on kW alone.
  • Confirm terminal logic, network options, LCP settings and parameter backup before exchange.
  • Check cabinet clearances, airflow and IP20 protection in the final installation.
05

Applications

  • Conveyors, pumps, fans and compact machinery.
  • Legacy VLT 2800 drive replacement and repair.
  • Machine retrofit where the existing parameter set and terminal logic must be retained.
06

FAQ

Which nameplate details are essential when sourcing VLT2840?

Provide the complete type code, code number, voltage code, filter/brake options, software version and serial number; the short model alone does not define every option.

How should parameters be preserved before replacing VLT2840?

Record or upload the full parameter set, terminal assignments, motor data, control mode and fault history; an LCP 2 can assist only when both drives support the transfer.

What decides whether the braking option for VLT2840 is required?

Evaluate load inertia, stopping time, duty cycle and overvoltage history, then confirm the exact drive suffix and resistor/thermal-protection design.

Can a newer Danfoss drive replace VLT2840 without panel changes?

Not automatically. Compare dimensions, cooling, I/O voltage/logic, control terminals, EMC, fieldbus and parameter behavior before issuing a retrofit design.

What should be verified during VLT2840 commissioning?

Check motor direction, no-load current, acceleration/deceleration, current limit, thermal protection, digital/analog I/O and emergency-stop behavior under the site safety procedure.

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