M3712 Single Phase Common Bus Power Supply Bonitron > Products > Common Bus > M3712

M3402R - Drive Logic Interface
15HP models are not UL listed

The M3712 is a low-cost solution for powering 3-phase AC drives from a single phase source.

3-phase motors are the economical choice for motor applications above 10 horsepower, however many locations only have single phase power available due to the cost of expanding 3-phase availability.

To increase efficiency in motor-driven applications, variable frequency drives (VFDs) can be used to control 3-phase motors. VFDs offer advantages such as soft starting, speed regulation, and increased efficiency. Most VFDs are not designed for single phase operation, and even those that are must be oversized by up to 300% when operated from a single phase source.

Fortunately, there is no longer a need to oversize 3-phase drives when using them in single phase applications thanks to the Bonitron M3712 Single Phase Common Bus Power Supply.  The M3712 has a single phase AC input and serves as a power supply for one or multiple drives via DC bus terminal connections.  In addition, the M3712 aids in protecting your drive from the high currents caused by single phase operation, which allows your drive to run cooler and longer.

 

  • UL Listed
  • Integrated precharge
  • Diagnostic indicators
  • Power single or multiple 3-phase drives from single phase source
  • No derating of VFD for single phase operation
  • Added bus capacitance and filtering for cooler running drives
  • Soft start-up to drives for increased reliability
  • Line Reactor recommended. Available through Bonitron.
  Power
(Nominal)
Model Number Output
Current
Input
Current
(AC RMS)
Dimensions
(H x W x D)
Model
Weight
Fuse
Plate
Line
Reactor
Harmonic
Filter
 
208 - 240 VAC Drives
  15 HP M3712-L015 50 A 87 A 15.00" x 6.20" x 7.30" - M3712F-L015 IN RL-08001 MSG0073A  
  30 HP M3712-L030 100 A 175 A 20.00" x 7.12" x 10.30" 31 lbs M3712F-L030 IN RL-13001 MSG0140A  
  50  HP M3712-L050 160 A 285 A 20.00" x 7.12" x 10.30" 35 lbs M3712F-L050 IN RL-20001 MSG0225A  
  75  HP M3712-L075 290 A 550 A 25.00" x 10.00" x 10.20" 45 lbs M3712F-L075 IN RL-32001 MSG0430A  
  125  HP M3712-L125 360 A 670 A 32.10" x 14.00" x 12.20" 111 lbs M3712F-L125 IN RL-50001 MSG0540A  
Note: Line Reactor Required. Available from Bonitron. Contact Bonitron before ordering or applying a common bus power supply (M3712 or M3713 Series) to a PowerFlex® 4, 40M, 40P, or 400 drive.
  Power
(Nominal)
Model Number Output
Current
Input
Current
(AC RMS)
Dimensions
(H x W x D)
Model
Weight
Fuse
Plate
Line
Reactor
Harmonic
Filter
 
460 - 480 VAC Drives
  15 HP M3712-H015 28 A 58 A 15.00" x 6.20" x 7.30" - M3712F-H015 IN RL-04502 MSG0047D  
  30 HP M3712-H030 55 A 115 A 20.00" x 7.12" x 10.30" 31 lbs M3712F-H030 IN RL-08001 MSG0090D  
  50  HP M3712-H050 90 A 185 A 20.00" x 7.12" x 10.30" 37 lbs M3712F-H050 IN RL-13002 MSG0165D  
  75  HP M3712-H075 135 A 250 A 25.00" x 10.00" x 10.20" 75 lbs M3712F-H075 IN RL-20002 MSG0215D  
  125  HP M3712-H125 200 A 365 A 32.10" x 14.00" x 12.20" 90 lbs M3712F-H125 IN RL-25002 MSG0310D  
Note: Line Reactor Required. Available from Bonitron. Contact Bonitron before ordering or applying a common bus power supply (M3712 or M3713 Series) to a PowerFlex® 4, 40M, 40P, or 400 drive.
  Made in the United States of America
 

Contact Bonitron

Back to Top