6SL3210-1PE21-1AL0 Siemens Power Module

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Description of 6SL3210-1PE21-1AL0

The Siemens 6SL3210-1PE21-1AL0 is a power module from the SINAMICS family of drives. It is a 3-phase AC input device designed for controlling motors with a rated output power of up to 4.00 kW. The module features an integrated internal air cooling system and complies with multiple international standards, including UL, cUL, and CE. It is suitable for standard drive applications with vector or V/f control and offers distinct overload capabilities for Low Overload (LO) and High Overload (HO) operating modes.

Parameter

Input (Line Side)
Number of phases: 3 AC
Line voltage: 380 ... 480 V ± 10 %
Line frequency: 47 ... 63 Hz
Rated current (LO): 13.30 A
Rated current (HO): 11.60 A

Output (Motor End)
Number of phases: 3 AC
Rated voltage: 400V IEC / 480V NEC
Rated power (LO): 4.00 kW / 5.00 hp
Rated power (HO): 3.00 kW / 4.00 hp
Rated current (LO): 10.20 A
Rated current (HO): 7.70 A
Max. output current: 15.40 A
Pulse frequency: 4 kHz
Output frequency (Vector control): 0 ... 200 Hz
Output frequency (V/f control): 0 ... 550 Hz

FAQ

What is the difference between Low Overload and High Overload operation?
A: The module provides two operational profiles for different load conditions. Low Overload (LO) is for applications requiring a high continuous base load with a small overload margin (110% for 57s). High Overload (HO) is for applications requiring higher transient overload capability (150% for 57s, 200% for 3s), such as demanding start-up sequences. Note that the rated output current and power are lower in HO mode to accommodate the higher overload reserve.

What are the temperature derating limits for operation above the specified altitude?
A: The standard rating is for installation altitudes up to 1,000 m above sea level. For installations above this altitude, derating is necessary due to reduced air density and cooling capacity. While this specific datasheet does not provide the derating curve, standard practice for such drives is to reduce the rated output current by approximately 1% for every 100 m above 1,000 m, up to a maximum permissible altitude.

What does the 0.11 kW power loss value represent?
A: The 0.11 kW power loss is the heat dissipated by the drive module under its rated operating conditions. This is the thermal energy that the internal air cooling system must remove. This figure is critical for control cabinet design to ensure adequate ventilation and cooling, preventing the ambient temperature inside the cabinet from exceeding the drive's specified limits.