Product Introduction
With a rated power of 250 kW (Low Overload) and 200 kW (High Overload), the Siemens 6SE6440-2UD42-0GA1 MICROMASTER 440 drive delivers robust performance for demanding industrial applications. This module has reached product cancellation status (PM410) as of October 2019, making it a prime candidate for replacement or upgrade in existing systems. The Siemens 6SE6440-2UD42-0GA1 is a variable frequency drive designed for three-phase AC motors, featuring IP20 protection and a compact footprint of 1533 x 326 x 545 mm (H x W x D).
Technical Specifications
Below are the key rated parameters for the Siemens 6SE6440-2UD42-0GA1:
| Parameter |
Value |
| Input Phases |
3 AC |
| Line Voltage |
380–480 V ±10% |
| Line Frequency |
47–63 Hz |
| Rated Current (LO) |
442.00 A |
| Rated Current (HO) |
354.00 A |
| Output Phases |
3 AC |
| Rated Voltage |
480 V |
| Rated Power (LO) |
250.00 kW / 350.00 hp |
| Rated Power (HO) |
200.00 kW / 300.00 hp |
| Rated Current (LO) |
477.00 A |
| Rated Current (HO) |
370.00 A |
| Pulse Frequency |
4,000 Hz |
| Output Frequency (V/f Control) |
0–267 Hz |
| Overload Capability (LO) |
150% for 1 s, 110% for 59 s, then 100% for 240 s (300 s cycle) |
| Overload Capability (HO) |
136% for 57 s, then 100% for 243 s (300 s cycle) |
| Power Factor λ |
0.95 |
| Efficiency η |
0.97 |
| Ambient Temperature (Operation) |
0 to +40 °C |
| Protection Class |
IP20 |
Industry Applications
The Siemens 6SE6440-2UD42-0GA1 is ideal for heavy-duty applications such as conveyors, crushers, and large pumps that require high starting torque and robust overload handling. Its Low Overload capability provides 150% current for one second to overcome breakaway torque, while the High Overload capability delivers 136% for 57 seconds for cyclic loads. This drive suits industries like mining, cement, and water treatment where uptime is critical.
Selection Guide & Purchasing Advice
When selecting the Siemens 6SE6440-2UD42-0GA1, note that this model has been discontinued (PM410 since October 2019) and carries a long delivery time of at least 60 working days. If you need a direct replacement for an existing MICROMASTER 440 installation, consider verifying compatibility with your motor and control system. For reliable sourcing of this and other automation parts, ubest101 offers stock verification and procurement assistance.
Maintenance & Reliability
The Siemens 6SE6440-2UD42-0GA1 features a cooling fan and operates best in clean environments with ambient temperatures between 0 and 40 °C. Regular inspection of fan filters and heat sinks is recommended every six months. The IP20 enclosure requires installation in a cabinet to protect against dust and moisture. Following these practices extends the drive’s service life and reduces unplanned downtime.