Manufacturer: Siemens

Series: SINAMICS

Part Number: 6SL3120-1TE21-8AA3

Product Category: Single Motor Control Unit

Approximate Unit Weight: 5 kg

Cooling Configuration: Internal Air Circulation Fan

Overvoltage Cutoff Threshold: 820 VDC ± 2%

Undervoltage Cutoff Threshold: 380 VDC ± 2%

Control Electronics Voltage Supply: 24 VDC (Range: 20.4 to 28.8 VDC)

Current Drawn by Electronics at 24 VDC: 0.85 A

Power Capacity Based on Nominal Current: 9.7 kW

Nominal Output Current: 18 A

Continuous Load Current: 15.3 A

Short-term Duty Current at 40%: 24 A

Maximum Allowable Current: 36 A

Output Voltage Span: 0 to 0.717 × DC-Link Voltage

DC-Link Voltage Operational Range: 510 to 720 VDC

DC-Link Capacitance Value: 220 µF

The Siemens model 6SL3120-1TE21-8AA3 is classified as a single motor control unit. With an approximate weight of 5 kg, this unit is efficient for various motor control applications. An internal air circulation fan handles the cooling requirements, ensuring reliable operation during extended use.

The unit's technical specifications include an operational range for the DC-link voltage, which varies between 510 VDC and 720 VDC. The control unit can handle an overvoltage cutoff threshold of 820 VDC ± 2% and an undervoltage cutoff of 380 VDC ± 2%, protecting the system from voltage fluctuations.

The control electronics' power supply is 24 VDC, allowing a range between 20.4 VDC and 28.8 VDC. At this voltage, the control electronics draw a current of 0.85 A. Based on its nominal current specifications, this unit boasts a power capacity of 9.7 kW.

Regarding current ratings, the nominal output current is set at 18 A, while the continuous load current operates at 15.3 A. The unit can handle up to 24 A at a 40% duty cycle for short-term duties. Overall, the maximum allowable current is 36 A. The output voltage can reach from 0 to 0.717 times the DC-link voltage, accommodating various motor needs.

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