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Leybold

TD 20 Turbo Drive Vacuum Controller

Leybold TD 20 Turbo Drive Vacuum Controller family
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The Leybold Turbo.Drive TD20 classic is an electronic frequency converter that drives specific TURBOVAC turbomolecular pumps. The Turbo.Drive TD20 classic converts single-phase mains voltage into a three-phase AC voltage with regulated frequency and amplitude. The Turbo.Drive TD20 classic can be connected directly to mains voltage.[1][2]

TD 20 Turbo Drive Vacuum Controller — Inventory photo
Fig. 01TD 20 Turbo Drive Vacuum ControllerInventory photo[3]

Power

50/60 Hz[3]

Vacuum

49,980 min-1[2]

What it is

The Leybold TD 20 Turbo Drive is an electronic frequency converter designed to drive turbomolecular pumps. The unit is also referred to as the Turbo.Drive TD20 classic. The frequency converter is manufactured by Leybold.[3][1][2]

How it works

The Turbo.Drive TD20 classic is an electronic frequency converter that converts single-phase mains voltage into a three-phase AC voltage with regulated frequency and amplitude. The generated three-phase AC voltage drives the three-phase asynchronous motor of the connected turbomolecular pump. The conversion produces a nominal motor voltage of 47 V.[1][2][4]

The TD 20 accepts a mains input of 100 to 240 V AC at 50 or 60 Hz. The power consumption of the frequency converter, including options, is less than 500 VA. The power consumption of the connected TURBOVAC pump is less than 400 VA. The motor current limitation is 5 A during acceleration (for a maximum of 10 minutes) and 3.5 A during continuous operation. The output frequency range is 0 to 835 Hz.[1][2][4]

The Turbo.Drive TD20 classic comes with a 9-way PLC interface as standard. The unit may also include an optional RS 232, Profibus, RS 485, 25-way PLC, DeviceNet, or Ethernet/IP interface. The frequency converter can be directly connected to mains voltage. The front panel includes a green STATUS LED, a yellow POWER LED, a red ERROR LED, an LED chain labeled LOAD, a SERVICE interface, an RS 232 interface, a START key, and a STOP key.[1][2]

Applications

The Turbo.Drive TD20 classic is used to drive Leybold TURBOVAC turbomolecular pumps of the following models: TURBOVAC 151, 151 C, 361, 361 C, TURBOVAC 600, 600 C, TURBOVAC 1000, 1000 C, and 1100 C. The frequency converter is not intended for use with other turbomolecular pumps.[1][2][4]

What do the numbers mean?

Power & electrical8

50/60 Hz[3]
Accurate?
Out
0-47V 0-330W 0-835Hz[3]
Accurate?
Mains Connection
100 to 240 V AC -15%/+10%, 50/60 Hz[2]
Accurate?
Power Output (Motor) Nominal Voltage
47 V[2]
Accurate?
Power Output (Motor) Frequency
0 to 835 Hz[2]
Accurate?
Nominal motor voltage
47 V[2]
Accurate?
Frequency range
0 to 835 Hz[2]
Accurate?
Electrical safety standard
EN 61010-1[2]
Accurate?

Vacuum & pumping8

TURBOVAC 151 Speed Rating
49,980 min-1[2]
Accurate?
TURBOVAC 361 Speed Rating
45,000 min-1[2]
Accurate?
TURBOVAC 600 Speed Rating
36,000 min-1[2]
Accurate?
TURBOVAC 1000 Speed Rating
36,000 min-1[2]
Accurate?
TURBOVAC 1100 Speed Rating
30,000 min-1[2]
Accurate?
Power Consumption of the TURBOVAC
< 400 VA[2]
Accurate?
Compatible TURBOVAC pumps
TURBOVAC 151, 151C, 361, 361C, 600, 600C, 1000, 1000C, 1100C[2]
Accurate?
Replaces TURBOTRONIK models
NT 20, NT 151/361, NT 361[2]
Accurate?

Control & software2

Standard interface
9-way PLC interface[2]
Accurate?
Optional interfaces
RS 232, Profibus, RS 485, 25-way PLC, DeviceNet, Ethernet/IP[2]
Accurate?

Dimensions & facilities2

Dimensions
1/2 19", 3HU[2]
Accurate?
Weight
4 kg[2]
Accurate?

Configuration & options15

490VA[3]
Accurate?
In
100-240Vac[3]
Accurate?
Power Consumption (including options)
< 500 VA[2]
Accurate?
Power Output (Motor) Current Limitation (Acceleration, max. 10 min.)
5 A[2]
Accurate?
Power Output (Motor) Current (Continuous Operation)
3.5 A[2]
Accurate?
Ambient Temperature (Operation)
0-45 °C[2]
Accurate?
Storage Temperature
-25 °C ... +70 °C[2]
Accurate?
Relative Air Humidity
5 to 85 % (non-condensing)[2]
Accurate?
Type of Protection
IP 20[2]
Accurate?
Motor current limitation during acceleration (max. 10 min)
5 A[2]
Accurate?
Motor current limitation in continuous operation
3.5 A[2]
Accurate?
Ambient temperature
0-45 °C[2]
Accurate?
Type of protection
IP 20 (to EN 6059)[2]
Accurate?
Interference radiation standard
to 61326-1 Class A[2]
Accurate?
EMC standard
to IEC 801-2 Severity 2[2]
Accurate?

Vintage & configurations

Documented models & variants

DesignationGenerationVintageChangesSource
Turbo.Drive TD20 classic with 9-way PLC interface——Standard interface configurationlesker.com[2]
Turbo.Drive TD20 classic with additional RS 232 interface——Adds RS 232 interface optionlesker.com[2]
Turbo.Drive TD20 classic with additional Profibus interface——Adds Profibus interface optionlesker.com[2]
Turbo.Drive TD20 classic with additional RS 485 interface——Adds RS 485 interface optionlesker.com[2]
Turbo.Drive TD20 classic with additional 25-way PLC interface——Adds 25-way PLC interface optionlesker.com[2]
Turbo.Drive TD20 classic with additional DeviceNet interface——Adds DeviceNet interface optionlesker.com[2]
Turbo.Drive TD20 classic with additional Ethernet/IP interface——Adds Ethernet/IP interface optionlesker.com[2]
Turbo.Drive TD20 classic with 9-way PLC interface and adapter for pump connection with DIN plug——Provides DIN plug pump connection for replacement of NT 151/361 or NT 361lesker.com[2]
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What does it need to run?

Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.

  • Configuration50/60 Hz[3]
  • Out0-47V 0-330W 0-835Hz[3]
  • Mains Connection100 to 240 V AC -15%/+10%, 50/60 Hz[2]
  • Power Output (Motor) Nominal Voltage47 V[2]
  • Power Output (Motor) Frequency0 to 835 Hz[2]
  • TURBOVAC 151 Speed Rating49,980 min-1[2]
  • TURBOVAC 361 Speed Rating45,000 min-1[2]
  • TURBOVAC 600 Speed Rating36,000 min-1[2]
  • TURBOVAC 1000 Speed Rating36,000 min-1[2]
  • TURBOVAC 1100 Speed Rating30,000 min-1[2]
  • Power Consumption of the TURBOVAC< 400 VA[2]
  • Nominal motor voltage47 V[2]
  • Frequency range0 to 835 Hz[2]
  • Electrical safety standardEN 61010-1[2]
  • Compatible TURBOVAC pumpsTURBOVAC 151, 151C, 361, 361C, 600, 600C, 1000, 1000C, 1100C[2]
  • Replaces TURBOTRONIK modelsNT 20, NT 151/361, NT 361[2]

Where are the manuals?

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Not publicly documented

Field notes

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Frequently asked questions

What is the input voltage range for the Turbo.Drive TD20 classic?

The input voltage range is 100 to 240 V AC -15%/+10%, 50/60 Hz.[2]

What is the output frequency range of the controller?

The output frequency range is 0 to 835 Hz.[2]

Which turbomolecular pumps are compatible with the Turbo.Drive TD20 classic?

The controller is compatible with TURBOVAC models 151, 151 C, 361, 361 C, 600, 600 C, 1000, 1000 C, and 1100 C.[2]

What are the dimensions and weight of the Turbo.Drive TD20 classic?

Dimensions are 1/2 19" rack width, 3 HU height, and weight is 4 kg.[2]

What interfaces are available on the controller?

A 9-way PLC interface is standard; optional interfaces include RS232, Profibus, RS485, 25-way PLC, DeviceNet, and Ethernet/IP.[2]

Not publicly documented

The following facts about the TD 20 Turbo Drive Vacuum Controller are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.

  • No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the TD 20 Turbo Drive Vacuum Controller are on record.

    Answerable by: OEM historical records or a trade-press announcement

  • The control-system platform and OS era of the TD 20 Turbo Drive Vacuum Controller are not on record.

    Answerable by: an engineer who operated it or OEM installation records

  • No publicly documented failure modes or field errata for the TD 20 Turbo Drive Vacuum Controller are on record.

    Answerable by: a field service engineer, process engineer, or maintenance technician

  • The process node or technology generation of the TD 20 Turbo Drive Vacuum Controller is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

  • No publicly documented compatible parts, consumables, or accessories for the TD 20 Turbo Drive Vacuum Controller are on record.

    Answerable by: an OEM parts catalog or a service engineer

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Sources & citations

Sources (4)Every fact above is drawn from these public sources
  1. [1]LEYBOLD TURBO.DRIVE TD20 CLASSIC OPERATING INSTRUCTIONS MANUAL Pdf Download | ManualsLib — manualslib.commanualslib.com
  2. [2]lesker.com — lesker.comlesker.com
  3. [3]Inventory photo
  4. [4]https://www.idealvac.com/files/brochures/Leybold_TD20_manual1a.pdf — idealvac.comidealvac.com
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Last updated Sep 25, 2026.

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