6SL3210-1PE21-8UL0 7.5 kW SINAMICS Power Module

Key Features and Technical Specifications

• Input: 3-phase AC, 380–480 V ±10%, 47–63 Hz
• Rated input current (LO): 22.20 A
• Rated input current (HO): 19.80 A
• Output: 3-phase AC, rated voltage 400 V (IEC) / 480 V (NEC)
• Rated output power (LO): 7.50 kW / 10.00 hp
• Rated output power (HO): 5.50 kW / 7.50 hp
• Rated output current (LO): 18.00 A
• Rated output current (HO): 13.20 A
• Maximum output current: 27.00 A
• Pulse frequency: 4 kHz
• Output frequency: 0–200 Hz (vector control), 0–550 Hz (V/f control)
• Overload capability (LO): 110% for 57 s, 150% for 3 s (cycle 300 s)
• Overload capability (HO): 150% for 57 s, 200% for 3 s (cycle 300 s)
• Efficiency: 0.97
• Power loss: 0.20 kW
• Degree of protection: IP20 / UL open type
• Frame size: FSB
• Net weight: 3.00 kg (6.61 lb)
• Dimensions (W×H×D): 100 × 292 × 165 mm (3.94 × 11.50 × 6.50 in)

One distinctive spec is the maximum output current of 27.00 A. This headroom allows the module to handle momentary load spikes without tripping, which is critical in applications like conveyors or pumps that experience start-up surges. The high efficiency of 0.97 reduces energy losses, contributing to lower operating costs over time.

Applications and Use Cases

The 6SL3210-1PE21-8UL0 is well-suited for variable-speed applications in industries such as material handling, packaging, and machine tools. The wide output frequency range (up to 550 Hz for V/f control) enables high-speed motor operation, which is beneficial for spindle drives or centrifugal machines. Moreover, the module's robust overload capability ensures reliable performance even under intermittent heavy loads, reducing the risk of unplanned downtime.

Installation and Setup Guidance

When installing the 6SL3210-1PE21-8UL0, ensure adequate clearance for cooling air flow. The module uses internal air cooling and requires a cooling air flow of 0.009 m³/s (0.325 ft³/s). Mount the unit vertically on a flat, non-flammable surface. Use plug-in screw terminals for both line and motor connections, accepting conductor cross-sections from 1.50 to 6.00 mm² (AWG 16 to AWG 10). For shielded motor cables, the maximum length is 50 m (164.04 ft); for unshielded cables, it is 100 m (328.08 ft). Always follow the manufacturer's manual for wiring and parameter settings.

Maintenance and Reliability Tips

To maintain long-term reliability, periodically inspect the cooling fan and air filters (if any) for dust accumulation. The ambient temperature range for operation is -10 to 40 °C (LO) and -10 to 50 °C (HO). Ensure the enclosure provides adequate ventilation. Check all terminal connections for tightness, especially after initial commissioning. Since the module has a power loss of 0.20 kW, ensure the cabinet has sufficient heat dissipation to avoid overheating. Regular inspection per the manufacturer's guidelines will help extend the service life of the drive.

What Makes the 6SL3210-1PE21-8UL0 a Reliable Drive Power Stage?

This power module is engineered for three-phase AC input and output, making it suitable for a wide range of industrial applications.

The module offers two overload operating modes to match your application's duty cycle. In Low Overload (LO) mode, it delivers a rated output current of 18.00 A and a rated power of 7.50 kW. In High Overload (HO) mode, it provides 13.20 A and 5.50 kW. This flexibility allows you to optimize performance versus thermal capacity, ensuring the drive does not trip unnecessarily during short-term peak loads.

Compliance and Standards

The 6SL3210-1PE21-8UL0 complies with UL, cUL, CE, C-Tick (RCM), and SEMI F47 standards. It carries the CE mark under the Low-voltage directive 2006/95/EC. These certifications ensure the module meets international safety and performance requirements, making it acceptable for use in global installations.

Availability and Support

The 6SL3210-1PE21-8UL0 is available from AutoDCSTech, a leading supplier of industrial automation parts. Please verify current lifecycle status and availability with AutoDCSTech before ordering. Our team can assist with product selection and technical inquiries.