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Siemens SINAMICS 6SL3120-2TE21-8AA3

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6SL3120-2TE21-8AA3

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The 6SL3120-2TE21-8AA3 model from Siemens, part of the SINAMICS series, is a book-sized double-motor module designed for high-performance applications. This unit delivers continuous output currents of 2 × 18 amperes, making it suitable for demanding tasks.

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Technical specifications for 6SL3120-2TE21-8AA3

ManufacturerSiemens
Product LineSINAMICS
Part Number6SL3120-2TE21-8AA3
UPC662643432985
Weight15.00 lbs (6.80 kg)
Module TypeDouble module, booksize
Continuous Output Current2 × 18 amperes
Nominal Base Current2 × 15.3 amperes
Short-Term Duty Current2 × 24 amperes (40 percent cycle)
Maximum Instantaneous Current2 × 36 amperes
Voltage Output RangeUp to 0.717 times the DC-link voltage
Peak DC-Link Current Capacity43 amperes
Voltage Range of DC-Link510 to 720 volts direct current
Capacitance of DC Circuit705 microfarads
Auxiliary Power Supply Voltage24 volts DC (operational between 20.4 and 28.8 V)
Energy Dissipation351.2 watts (total losses included)
Operating Pulse Frequency4 kilohertz standard; 16 kilohertz with derating
Air Cooling Flow Rate56 cubic meters per hour
Maximum Heat Sink TemperatureUp to 90 degrees Celsius
Device Mass6.8 kilograms
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Siemens' 6SL3120-2TE21-8AA3, a robust component in the SINAMICS lineup, functions as a double module in a compact booksize format. It produces a continuous output current of 2 × 18 amperes, while its nominal base current stands at 2 × 15.3 amperes, ensuring adequate power for various applications. In temporary high-performance cases, the module can reach a short-term duty current of 2 × 24 amperes, with the maximum instantaneous current peaking at 2 × 36 amperes.

This module operates effectively within a DC-link voltage range of 510 to 720 volts; it can deliver voltage outputs up to 0.717 times this DC-link voltage. The peak DC-link current capacity is rated at 43 amperes, and the capacitance of the direct current circuit is measured at 705 microfarads. The module requires 24 volts DC for auxiliary power supply but is operational within a range of 20.4 to 28.8 volts.

Energy losses during operation total 351.2 watts. For operational efficiency, the standard operating pulse frequency is set at 4 kilohertz, with an option to extend to 16 kilohertz under derating conditions. Adequate cooling is provided by air drawn at a 56 cubic meters per hour flow rate. This module's maximum tolerable heat sink temperature is capped at 90 degrees Celsius, ensuring effective thermal management. Finally, with a compact device mass of 6.8 kilograms, the 6SL3120-2TE21-8AA3 is manageable for installation and maintenance.