M3712

Single Phase Common Bus Power Supply


M3712 Single Phase Power Supply

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.

RoHS CompliantRoHS Compliant15HP models are not UL listed

  • 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-AC IN RL-08001 MSG0073A
30 HP M3712-L030 100 A 175 A 20.00" x 7.12" x 7.30" - M3712F-L030-AC IN RL-13001 MSG0140A
50 HP M3712-L050 160 A 285 A 20.00" x 7.12" x 7.30" - M3712F-L050-AC IN RL-20001 MSG0225A
75 HP M3712-L075 290 A 550 A 25.00" x 10.00" x 10.20" - M3712F-L075-AC IN RL-32001 MSG0430A
125 HP M3712-L125 360 A 670 A 32.10" x 14.00" x 12.20" - M3712F-L125-AC IN RL-50001 MSG0540A
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-AC IN RL-04502 MSG0047D
30 HP M3712-H030 55 A 115 A 20.00" x 7.12" x 7.30" - M3712F-H030-AC IN RL-08001 MSG0090D
50 HP M3712-H050 90 A 185 A 20.00" x 7.12" x 7.30" - M3712F-H050-AC IN RL-13002 MSG0165D
75 HP M3712-H075 135 A 250 A 25.00" x 10.00" x 10.20" - M3712F-H075-AC IN RL-20002 MSG0215D
125 HP M3712-H125 200 A 365 A 32.10" x 14.00" x 12.20" - M3712F-H125-AC IN RL-25002 MSG0310D
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