Product Introduction
The Siemens 6SE7021-3TP70-Z is a SIMOVERT MASTERDRIVES inverter compact plus unit from the Performance 2 series, designed for precise motion control in demanding industrial environments. This frequency converter operates at an IP20 protection rating and features a DC input range of 510–650 V, delivering a nominal current of 13.2 A and a power rating of 5.5 kW. The unit includes documentation on CD, making it easy to integrate into existing systems. Part of the Siemens MASTERDRIVES family, the 6SE7021-3TP70-Z provides reliable motor control and energy efficiency, reducing operational costs over the long term.
Technical Specifications
| Parameter |
Value |
| Product Type |
Frequency Converter |
| Input Voltage (DC) |
510–650 V |
| Nominal Current |
13.2 A |
| Power Rating |
5.5 kW |
| Protection Rating |
IP20 |
| Dimensions (cm) |
53.00 × 38.00 × 25.00 |
| Weight |
10.90 kg |
These specifications ensure the Siemens 6SE7021-3TP70-Z can handle medium-power applications with high reliability and minimal downtime.
Industry Applications
Ideal for conveyor systems, pumps, fans, and machine tool drives, the Siemens 6SE7021-3TP70-Z provides smooth speed control and torque management. For example, in a material handling operation, this inverter reduces energy consumption by adjusting motor speed to match load requirements. The compact Plus design saves panel space while delivering consistent performance even under harsh conditions.
Installation & Setup Guidance
Mount the Siemens 6SE7021-3TP70-Z in a clean, dry location with adequate airflow around the IP20 enclosure. Ensure the DC supply is within 510–650 V and properly fused. Connect the motor according to the wiring diagram provided on the CD. Use shielded cables for signal lines to minimize electromagnetic interference. After power-up, verify parameter settings via the master drive software to match your motor data.
Maintenance & Reliability
Regularly inspect the fan and heat sink of the Siemens 6SE7021-3TP70-Z for dust buildup, which can cause overheating. Check DC bus capacitors every 2–3 years for signs of leakage or bulging. The unit’s robust design minimizes unexpected failures, contributing to a lower total cost of ownership. By following a simple preventive maintenance schedule, you extend service life and avoid costly production stops.
Selection Guide & Purchasing Advice
Before purchasing the Siemens 6SE7021-3TP70-Z, verify that your DC bus voltage matches the 510–650 V range and that the current rating (13.2 A) meets your motor requirements. Confirm physical dimensions (53 × 38 × 25 cm) for panel fit. As a trusted supplier, PLC Source PRO offers genuine Siemens parts with fast shipping. Contact PLC Source PRO for availability and compatibility support.