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6SL3210-1PE21-8AL0

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The 6SL3210-1PE21-8AL0 is a Siemens SINAMICS G120 Power Module, 7.5 kW (LO) / 5.5 kW (HO), 3‑phase 380‑480V, 18A (LO) / 13.2A (HO), size FSB, IP20.
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Technical specifications for 6SL3210-1PE21-8AL0

  • Manufacturer:
    Siemens
  • Part Number:
    6SL3210-1PE21-8AL0
  • Product Family:
    Siemens SINAMICS
  • Product Type:
    Power Module
  • Input Phases:
    3 AC
  • Line Voltage:
    380‑480 V ±10%
  • Line Frequency:
    47‑63 Hz
  • Rated Current (LO):
    18.0 A
  • Max Output Current:
    27.0 A
  • Rated Power (LO @400V):
    7.5 kW (10 hp @480V)
  • Pulse Frequency:
    4 kHz
  • Output Frequency (Vector):
    0‑200 Hz
  • LO Overload:
    110% for 57 s, 150% for 3 s
  • Protection:
    IP20 / UL open type
  • Weight:
    6.3 kg
  • Estimated shipping dimensions:
    24.3x20.5x26.5cm
  • Tariff Code:
    8517795000
  • Country of origin:
    Germany
  • 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 Specifications Application Firmware & Updates Configuration

Features:

  • Handles heavy starting loads and momentary overloads without tripping; minimizes production interruptions.
  • Saves cabinet space; plug‑in screw terminals for easy wiring; IP20 metal housing.
  • Meets EN 50598‑2 efficiency standards; reduces harmonic distortion; UL, cUL, CE, C‑Tick, SEMI F47 approvals.
The 6SL3210-1PE21-8AL0 is engineered for applications with demanding load cycles. Its High Overload (HO) rating allows the drive to deliver 150% of rated current for 57 seconds (e.g., starting a loaded conveyor or accelerating a high‑inertia fan) and 200% for 3 seconds (e.g., clearing a momentary jam). The Low Overload (LO) rating is 110% for 57 seconds and 150% for 3 seconds. This overload capability is defined within a 300‑second cycle time, meaning the drive can handle peak loads repeatedly as long as the average load stays within the continuous rating. For engineers, this eliminates the need to oversize the drive for short‑duration peak loads.

The 6SL3210-1PE21-8AL0 is a size FSB drive, measuring only 100 mm wide, 292 mm high, and 165 mm deep. It weighs just 3.2 kg, allowing installation in tight control cabinets where larger drives would not fit. The narrow width (100 mm) is particularly advantageous when multiple drives must be mounted side by side. The compact size does not compromise performance: it delivers 18A continuous (LO) and 27A peak. The module uses plug‑in screw terminals for line and motor connections, accepting 1.5‑6.0 mm² wire.

Energy efficiency is a major consideration for continuous‑duty drives. The 6SL3210-1PE21-8AL0 meets IE2 efficiency class under EN 50598‑2, the standard for motor drive systems. For a 7.5 kW motor running 24/7, switching from a fixed‑speed motor (often oversized) to a variable speed drive can save 20‑50% of energy. The drive’s power loss values are shown in the document diagrams; note that losses increase by 10% for calculated values per the standard.

The 6SL3210-1PE21-8AL0 SIEMENS Power Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL)by the manufacturer (OEM).

SIEMENS 6SL3210-1PE21-8AL0 Power Module Manuals, Datasheets,Drivers,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.
SIEMENS 6SL3210-1PE21-8AL0 Power Module Specs

General

  • Manufacturer SIEMENS
  • Model 6SL3210-1PE21-8AL0
  • Condition New Original ready stock
  • Product Family 6SL3210-1PE21-8UL0,6SL3210-1PE22-0AL0,6SL3210-1PE21-4AL0
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.
  • Pumping & Ventilation: Optimized for centrifugal pumps, radial/axial fans, and small compressors in building automation or industrial cooling.
  • Conveyor Technology: Ideal for belt conveyors, chain conveyors, and roller tracks in logistics centers.
  • Machine Processing: Used in milling machines, mixers, and industrial washing machines.
  • Standard Building Services: HVAC systems where the integrated Class A filter helps suppress electromagnetic interference in industrial grids.
  • Firmware Storage: The firmware is stored on the Control Unit (e.g., CU240E-2 or CU250S-2). The Power Module contains hardware-level parameters (ID data) that the CU reads upon startup.
  • Updates: You update the drive by upgrading the Control Unit's firmware via an SD card or through TIA Portal/Startdrive.
  • Hardware Compatibility: The 6SL3210-1PE21-8AL0 is compatible with all current G120 Control Units from firmware version V4.4 and higher. Always ensure your CU firmware supports the specific PM240-2 hardware revision.
  • TIA Portal (Startdrive): The most modern way to integrate the drive into a Siemens automation environment.
  • STARTER: The classic stand-alone commissioning tool for deep-level parameterization.
  • BOP-2 / IOP-2: Local operator panels for quick on-site setup without a PC.
Description
The 6SL3210-1PE21-8AL0 is a SINAMICS G120 Power Module for variable speed drive applications. It operates on a 3‑phase AC line voltage of 380‑480V at 47‑63 Hz. Rated output current is 18.0A (Low Overload) and 13.2A (High Overload). Rated output power is 7.5 kW (10 hp) for LO and 5.5 kW (7.5 hp) for HO at 400V/480V. Pulse frequency is 4 kHz. 

When using the 6SL3210-1PE21-8AL0, engineers benefit from high overload capability: 150% for 57 seconds and 200% for 3 seconds in HO mode. LO overload is 110% for 57 seconds and 150% for 3 seconds. The drive supports vector control (0‑200 Hz) and V/f control (0‑550 Hz). 

It accepts conductor cross‑sections of 1.5‑6.0 mm². Maximum shielded motor cable length is 50 m; unshielded is 100 m. The module is certified to UL, cUL, CE, C‑Tick (RCM) and complies with SEMI F47 for voltage sag immunity. 

For SINAMICS G120 system expansions, the 6SL3210-1PE21-8AL0 is a compact power module for lower power ranges. It meets IE2 efficiency class per EN 50598‑2. The module has an integrated Class A filter (C3 category per EN 61800‑3). 
Alternative Names
6SL3210-1PE21-8UL0 6SL3210-1PE22-0AL0 6SL3210-1PE21-4AL0
Technical notes
The 6SL3210-1PE21-8AL0 is a Power Module only – it requires a separate Control Unit (CU) such as CU240E-2, CU240B-2, or CU250S-2. The Control Unit plugs into the Power Module and provides the I/O, fieldbus, and application programming. The CU is ordered separately.
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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.
How much overload can 6SL3210-1PE21-8AL0 handle?
In High Overload mode, it delivers 150% for 57 seconds and 200% for 3 seconds. In Low Overload mode, it delivers 110% for 57 seconds and 150% for 3 seconds. This handles starting of heavy fans, centrifuges, and compressors without tripping.
How far can I place the motor from 6SL3210-1PE21-8AL0?
Maximum shielded cable length is 50 m; unshielded is 100 m. For longer distances, use an output reactor or sine filter. Long cable runs require proper grounding and shielding to avoid reflected wave damage to motor insulation.
What wire size does 6SL3210-1PE21-8AL0 accept?
The plug‑in screw terminals accept 1.5‑6.0 mm² (approximately AWG 16 to AWG 10). Use copper conductors only. Strip length is not specified in this document; refer to the terminal markings or G120 hardware manual.
Is 6SL3210-1PE21-8AL0 energy efficient?
Yes. It meets IE2 efficiency class per EN 50598‑2. The drive’s power loss values are shown in the diagrams; losses increase by 10% for calculated values. Using a drive instead of a fixed-speed motor can save 20‑50% energy depending on the load profile.