VLT 3008

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The VLT 3008 drive delivers a rated shaft power of 5.5 kW and supports supply voltages of 3 x 380/400/415/440/460/500 V ±10%. Made by Danfoss as part of the VLT 3000 Variable Speed Drives Series, it features a protection class of IP21/IP54 and supports supply frequencies of 50/60 Hz.

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Product Description:

Danfoss is a leading developer of industrial drive technology that provides precise control. The VLT 3008 Speed drive offers reliable control of electrical power during automation work. It makes it efficient over a range of operating conditions. The drive has the ability to handle applications that demand stand-controlled current, voltage, and protection features. The specified rating allows steady-state working in continuous torque.

The quadratic load requires a limit of 29.6 A input current. The elevated tolerance supports the variation in load in the pump and fan systems. Its supporting wire size limit is 6 AWG. Enhanced current levels can be safely handled in industrial installations by the conductor specification. The maximum pre-fuse requirement equals 50 A. The fuse rating provides protection against overcurrent while supporting high-capacity operation. The AC line voltage is 3-phase at 200, 220, or 230 V ±10%. The range of voltage compatibility secures integration with standard industrial power networks. The AC line frequency is 50 or 60 Hz. The selectable frequency option provides operation in regions with different supply standards. The drive protection includes ground and short circuit proofing. The variable speed drive delivers controlled power regulation with proven electrical and mechanical protection.

The VLT 3008 speed drive specifies a power factor of 0.9 or 1.0. The defined range provides efficient utilization of electrical power and reduces reactive losses. The efficiency rating is 0.96 at 100 percent load. Under continuous duty cycles, the high conversion efficiency supports energy stability. The input switching capability is limited to 5 times per minute. The switching specification prevents excessive stress on the drive during frequent restarts. The vibration test rating equals 0.7 g. The verified resistance confirms mechanical stability under industrial vibration exposure.

AC line frequency
50 / 60 Hz
AC line voltage
3Ø 200 / 220 / 230 ± 10%
Efficiency
0.96 at 100% load
Max. input current (constant load)
22.2 A
Max. input current (quadratic load)
29.6 A
Max. Motor Cable Length
300 m (150 m screened)
Max. pre-fuses
50 A
Max. wire size
6 AWG
Power factor / cos φ
0.9 / 1.0
Protection Class
IP21/IP54
Switching on the input
5 times per minute
Vibration test
0.7 g
VLT protection
Ground and short circuit proof
  • VLT3008

Frequently Asked Questions about VLT 3008:

Q: What protective features are integrated into the VLT 3008 Variable Speed Drive?

A: It includes ground and short-circuit proofing, offering enhanced reliability. These safeguards help prevent critical damage during electrical disturbances in automation environments.

Q: What efficiency level can be expected from the VLT 3008 Variable Speed Drive?

A: The unit operates with a 0.96 efficiency rating at full load. This high conversion rate reduces energy loss and improves long-term operating economy.

Q: How does the VLT 3008 support electrical compatibility across facilities?

A: The drive operates on 3-phase 200 V, 220 V, or 230 V supplies. This flexibility ensures use in plants with different regional power standards.

Q: What maintenance steps are advised for the VLT 3008 Variable Speed Drive?

A: Regularly checking input wiring, cooling fans, and ensuring vibration levels remain below 0.7 g helps extend its lifespan. These measures support consistent performance.

Q: How does the VLT 3008 Variable Speed Drive handle varying loads?

A: The drive manages both constant and quadratic load conditions with separate current allowances. This ensures adaptability for motor-driven systems like pumps and fans.


Internal Product Review

  • ‘‘The VLT 3008 Variable Speed Drive from Danfoss provides dependable regulation for industrial motors, maintaining efficiency with 0.96 full-load conversion. Its input current capacity of 22.2 A supports continuous-duty applications. With safety protections against short-circuits and ground faults, it delivers reliable service under challenging operating conditions.’’

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