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6SL3210-1KE18-8UF1

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Siemens 6SL3210-1KE18-8UF1 is a 4 kW SINAMICS G120C compact converter with PROFINET, EtherNet/IP, integrated Safe Torque Off, and onboard I/O.
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Technical specifications for 6SL3210-1KE18-8UF1

  • Manufacturer:
    Siemens
  • Part Number:
    6SL3210-1KE18-8UF1
  • Product Family:
    Siemens SINAMICS
  • Product Type:
    SINAMICS G120C Compact Converter
  • Stock:
    1
  • Input Supply:
    3 AC 380 to 480 V, +10/-20%
  • Supply Frequency:
    47 to 63 Hz
  • Low-Overload Power:
    4 kW
  • High-Overload Power:
    3 kW
  • Low-Overload Output Current:
    8.8 A
  • High-Overload Output Current:
    7.3 A
  • Maximum Output Current:
    14.6 A
  • Output Frequency, Vector Control:
    0 to 240 Hz
  • Output Frequency, V/f Control:
    0 to 550 Hz
  • Pulse Frequency:
    4 kHz
  • Communication:
    PROFINET and EtherNet/IP
  • Standard Digital Inputs:
    6
  • Fail-Safe Digital Inputs:
    1
  • Digital Outputs:
    1 relay and 1 transistor
  • Analog/Digital Inputs:
    1 differential, 10-bit
  • Analog Outputs:
    1 non-isolated
  • Motor Temperature Input:
    PTC, KTY, and Thermo-Click
  • Integrated Safety Function:
    Safe Torque Off
  • Integrated Line Filter:
    Unfiltered
  • Cooling:
    Integrated fan
  • Operating Temperature:
    -10 to +40 °C
  • Protection Rating:
    IP20 / UL open type
  • Frame Size:
    FSA
  • Weight:
    4.63 lbs (2.1 kg)
  • Estimated shipping dimensions:
    27x22.5x8.5cm
  • Tariff Code:
    8504409999
  • Country of origin:
    Great Britain
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals I/O Mapping PROFINET Safety Input Motor Connections

Features:

  • The compact converter combines a 4 kW low-overload power stage with integrated control electronics.
  • PROFINET and EtherNet/IP connect the drive to the automation network.
  • A dedicated fail-safe input operates the integrated Safe Torque Off function.
Siemens 6SL3210-1KE18-8UF1 controls a three-phase motor from network, digital, or analog commands.

Its onboard inputs and outputs exchange operating states without requiring a separate signal module.

The integrated fan and IP20 enclosure define the cabinet cooling and protection requirements.

The Siemens 6SL3210-1KE18-8UF1 SINAMICS G120C Compact Converter may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6SL3210-1KE18-8UF1 SINAMICS G120C Compact Converter Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

Command and Feedback Signals

  • Digital commands: Six standard digital inputs accept discrete operating signals from the control circuit.
  • Analog reference: One differential analog/digital input accepts a 10-bit process value or digital threshold signal.
  • Status outputs: One relay and one transistor output return discrete drive conditions to external devices.
  • Analog feedback: The non-isolated analog output transmits the assigned operating value to the connected system.

Industrial Ethernet Control

  • Network protocols: The integrated interface supports PROFINET and EtherNet/IP communication.
  • Command path: Control words and speed references travel from the automation controller to the converter over Ethernet.
  • Feedback path: Status words and operating values return from the converter through the same network connection.
  • Address setup: Device name, IP parameters, and controller assignment must match the selected industrial Ethernet protocol.

Safe Torque Off Signal Path

  • Fail-safe channel: One dedicated input receives the external safety-circuit command.
  • Torque response: Safe Torque Off prevents the converter from producing motor torque under the documented conditions.
  • Separate function: The safety input is distinct from the six standard digital command inputs.
  • Commissioning check: Wiring, parameter assignment, and the complete safety chain must be validated before operation.

Power, Temperature, and Cable Paths

  • Motor output: Plug-in screw terminals carry the variable-frequency three-phase output to the motor.
  • Thermal sensor: The temperature input accepts PTC, KTY, or Thermo-Click feedback from the motor.
  • Braking circuit: The DC-link terminals provide the documented connection path for an external braking resistor.
  • Cable limit: Motor cable length and conductor size must remain within the stated terminal and installation limits.
Description
Siemens 6SL3210-1KE18-8UF1 is a SINAMICS G120C compact converter that converts a 380-480 V three-phase input into a controlled motor output. The unit combines the power stage, control electronics, PROFINET/EtherNet/IP communication, and onboard signal interfaces in one FSA enclosure.

Motor commands reach 6SL3210-1KE18-8UF1 through the network or its six standard digital inputs, while one differential analog/digital input accepts a process reference. One relay output, one transistor output, and one non-isolated analog output return drive states or control values to the surrounding system.

The dedicated fail-safe input on 6SL3210-1KE18-8UF1 operates the integrated Safe Torque Off function. It removes torque-producing control from the motor output when the documented safety circuit conditions are met, while the separate PTC/KTY/Thermo-Click input supervises the connected motor temperature sensor.

Air cooling through the integrated fan carries losses away from 6SL3210-1KE18-8UF1. Its IP20 construction requires a protected cabinet, and the specified -10 to +40 °C operating range applies together with the required clearances, altitude limit, and cable termination conditions.
Alternative Names
6SL32101KE188UF1 6SL3210 1KE18 8UF1 6SL 3210 1KE18 8UF1 Siemens 6SL3210-1KE18-8UF1 6SL3210-1KE18-8UF1 SINAMICS G120C Siemens 6SL32101KE188UF1 6SL3210-1KE18-BUF1 6SL32I0-1KE18-8UF1 Compact Converter
Technical notes
On Siemens 6SL3210-1KE18-8UF1, the fail-safe input serves Safe Torque Off while the separate motor-temperature input accepts PTC, KTY, or Thermo-Click sensors.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Why does 6SL3210-1KE18-8UF1 show separate low-overload and high-overload power ratings?
Siemens 6SL3210-1KE18-8UF1 uses different current and overload cycles for 4 kW low-overload duty and 3 kW high-overload duty.
What should be checked when 6SL3210-1KE18-8UF1 is not visible on PROFINET?
Verify the 6SL3210-1KE18-8UF1 Ethernet link, device name, IP settings, protocol selection, and controller hardware configuration.
Why does 6SL3210-1KE18-8UF1 remain inhibited after the run command is present?
Check whether 6SL3210-1KE18-8UF1 has an active Safe Torque Off input, missing enable, drive fault, or incomplete control-word sequence.
Which motor-temperature sensors can connect to 6SL3210-1KE18-8UF1?
Siemens 6SL3210-1KE18-8UF1 accepts PTC, KTY, and Thermo-Click sensors at its documented motor-temperature input.
What can cause 6SL3210-1KE18-8UF1 to overheat inside a cabinet?
Inspect the 6SL3210-1KE18-8UF1 fan, airflow clearance, ambient temperature, altitude, switching frequency, load duty, and cabinet heat removal.