Bonitron

M3712 Single Phase Common Bus 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.

Product Highlights

• 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.