Siemens 6SL3210-1PE21-8UL0 PM240-2 Power Module

6SL3210-1PE21-8UL0 Siemens 7.5 kW PM240-2 Power Module

Product Introduction

The Siemens 6SL3210-1PE21-8UL0 belongs to the SINAMICS PM240-2 series. This power module serves as the power stage for modular AC drive systems. It requires a compatible Control Unit (CU) to form a complete variable frequency drive.

This unit accepts a three-phase input from 380V to 480V AC at 47–63 Hz. The input rated current reaches 22.20 A under Low Overload (LO) conditions. For High Overload (HO) applications, the input rated current is 19.80 A.

On the output side, the 6SL3210-1PE21-8UL0 provides three-phase power to the motor. The rated output power is 7.50 kW (10 hp) for LO duty or 5.50 kW (7.5 hp) for HO duty. The rated output current stands at 18.00 A (LO) and 13.20 A (HO). Additionally, the maximum output current reaches 27.00 A for short-term overloads.

Key Technical Specifications

• Input phases: 3 AC

• Input voltage: 380 … 480 V ±10%

• Input rated current (LO/HO): 22.20 A / 19.80 A

• Output phases: 3 AC

• Rated power (LO/HO): 7.50 kW / 5.50 kW

• Rated current (LO/HO): 18.00 A / 13.20 A

• Max. output current: 27.00 A

• Pulse frequency: 4 kHz (configurable)

• Output frequency (vector control): 0 … 200 Hz

• Output frequency (V/f control): 0 … 550 Hz

• Power factor λ: 0.85

• Cos φ offset factor: 0.95

• Efficiency η: 0.97

• Power loss: 0.20 kW

• Sound pressure level: 72 dB at 1m

Overload Capability

The Siemens 6SL3210-1PE21-8UL0 offers two distinct overload ratings.

Low Overload (LO):

• 1.1 × rated output current (110% overload) for 57 seconds

• 1.5 × rated output current (150% overload) for 3 seconds

• Cycle time: 300 seconds

High Overload (HO):

• 1.5 × rated output current (150% overload) for 57 seconds

• 2.0 × rated output current (200% overload) for 3 seconds

• Cycle time: 300 seconds

This flexibility makes the 6SL3210-1PE21-8UL0 suitable for both constant torque and variable torque applications.

Mechanical Data and Environmental Limits

The Siemens 6SL3210-1PE21-8UL0 has an IP20 protection rating (UL open type). Its frame size is FSB. The net weight equals 3.00 kg, while the gross weight for shipping is 3.80 kg.

Dimensions are as follows:

• Width: 100 mm (3.94 in)

• Height: 292 mm (11.50 in)

• Depth: 165 mm (6.50 in)

For installation altitude, the maximum is 1,000 m without derating. The operating temperature range depends on the load type. For LO duty, it runs from -10°C to +40°C. For HO duty, it operates from -10°C to +50°C. Storage and transport temperatures range from -25°C to +55°C.

Additionally, the maximum relative humidity is 95% during operation. However, condensation is strictly prohibited.

Cooling and Ventilation

This power module uses internal air cooling. The cooling air requirement is 0.009 m³/s (0.325 ft³/s). Therefore, ensure adequate ventilation around the unit. Maintain at least 100 mm of free space above and below the module.

Connection Specifications

Line side connections:

• Type: Plug-in screw terminals

• Conductor cross-section: 1.50 … 6.00 mm² (AWG 16 … AWG 10)

Motor side connections:

• Type: Plug-in screw terminals

• Conductor cross-section: 1.50 … 6.00 mm² (AWG 16 … AWG 10)

Maximum motor cable length:

• Shielded cable: 50 m (164.04 ft)

• Unshielded cable: 100 m (328.08 ft)

Standards and Compliance

The 6SL3210-1PE21-8UL0 complies with multiple international standards. These include UL, cUL, CE, C-Tick (RCM), and SEMI F47. It also meets the low-voltage directive 2006/95/EC for CE marking.

Frequently Asked Questions (FAQ)

1. Can I use the 6SL3210-1PE21-8UL0 without a Control Unit?
No. This power module requires a SINAMICS Control Unit (CU) to operate. Common options include CU230P-2 or CU240B-2.

2. What is the difference between LO and HO ratings?
LO (Low Overload) suits variable torque loads like pumps and fans. HO (High Overload) suits constant torque loads like conveyors and extruders.

3. Does the Siemens 6SL3210-1PE21-8UL0 include an input filter?
No. This version has no integrated filter class. For EMC compliance, add an external line filter.

4. How do I reset the 6SL3210-1PE21-8UL0 to factory defaults?
You must access this through the connected Control Unit. Use parameter P0010 = 30 and P0970 = 1 on the CU.

5. What happens at altitudes above 1,000 m?
Derating is required above 1,000 m. Reduce the output current by 1% per 100 m above 1,000 m, up to 4,000 m maximum.