
Siemens 6SE3221-1FG40
Need something we currently don't have available? Our sourcing team can help you find what you need
The Siemens MIDIMASTER VECTOR MDV750/4 (6SE3221-1FG40) is a robust variable frequency drive designed for demanding industrial motor control applications. Operating on a three-phase supply of 525–575 V at 50/60 Hz, this drive is optimized for both constant torque and variable torque applications, making it suitable for a wide range of industrial processes.
With a rated output of 7.5 kW in constant torque operation and an overload capacity of 150% for 60 seconds and 200% for 3 seconds, the MDV750/4 ensures reliable performance under high load conditions. For variable torque applications such as pumps and fans, it supports motor ratings up to 11 kW, delivering efficient and stable operation.
The unit features an IP21 / NEMA 1 enclosure and is designed for installation in controlled environments with ambient temperatures from 0 to 40 °C. Compact dimensions of 450 x 275 x 210 mm (H x W x D) allow for straightforward panel integration in industrial control cabinets.
Please note that this product is obsolete. As a reliable replacement, Siemens recommends the successor model 6SE6440-2UE27-5CA1, which offers enhanced functionality and long-term availability. This makes the MIDIMASTER VECTOR MDV750/4 primarily suitable for system maintenance, replacement, or spare part requirements in existing installations.