Siemens Marq 21 NEMA Size 4 Variable Frequency Drive - 480V/3P
VFD | NEMA 4 | 100HP | 480V/3P | Integrated Drive Controller
This Siemens Marq 21 NEMA Size 4 variable frequency drive MCC bucket integrates advanced motor speed control into a standardized plug-in module, constructed for long-service-life operation. Rated for 100HP at 480V three-phase, this VFD bucket provides precise speed regulation, soft starting, and energy savings up to 50 percent on variable-torque loads. The integrated drive controller includes EMC filtering, dynamic braking provisions, and communication ports for Modbus, EtherNet/IP, or BACnet integration, offering drop-in replacement compatibility for quick retrofits. Essential for airport facilities, hospital critical power, and campus electrical systems, the Marq 21 VFD bucket ships factory-programmed and tested for rapid commissioning with UL 845 and UL 508A listings.
