Product Overview

Model: 6SL3120-2TE21-8AA3
 Classification: Double Motor Module for SINAMICS S120 drive systems (Booksize D-type)
Purpose: Converts a 600 V DC supply into two 400 V AC 3-phase outputs, enabling dual-motor operation at higher power ratings. Provides 18 A continuous current per channel with peak handling up to 36 A, ideal for demanding multi-axis drive applications. Integrated DRIVE-CLiQ ensures communication with the control unit and supports Safety Integrated functions.

Electrical & Operational Specifications

• DC Link Voltage: ~600 V DC (nominal)

• Output Voltage: 400 V, 3-phase (per channel)

• Output Current (each motor):

  • Continuous (Rated, In): 18 A

  • Peak Current (Imax): 36 A

• Rated Motor Power (each motor): ~9.7 kW

• DC-Link Current: ~43 A

• Rated Pulse Frequency: 4.0 kHz

• Output Frequency Range:

  • Servo: up to 650 Hz (license-dependent)

  • Vector: up to 300 Hz

  • V/f: up to 600 Hz

• Cooling: Internal forced-air

• Power Loss: Typical ~0.2 kW (dependent on load)

• Sound Pressure Level: ~60 dB (at 1 m)

• Ambient Conditions: 0–40 °C, up to 1000 m altitude without derating

• Safety Integrity: Supports Safety Integrated (SIL 2, PL d, Cat 3)

• Control Interface: Integrated DRIVE-CLiQ

Physical Specifications

• Dimensions (W × H × D): ~100 × 380 × 270 mm

• Weight: ~6.8 kg (~15 lb)

• Enclosure Rating: IP20 / UL open-type

Interface & Capacity

• Busbar Capacity:

  • 24 V electronics busbar: 20 A

  • DC link busbars: sized for 2 × 18 A channels (reinforceable with accessory bridges)

• Motor Connections: Standard SINAMICS motor terminals; PE via M5 screw

• Maximum Motor Cable Length:

  • Shielded: ~50 m

  • Unshielded: ~75 m

• Certifications: CE, cULus, SIL 2, PL d, Cat 3

Summary Table