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Line Regeneration Selection

All 6A and 300A Regen models are not UL listed

When variable speed drive systems are braking they generate power that must be dissipated. If the excess power is not dissipated, the drive system can lose control of the process due to an overvoltage trip.

Bonitron Line Regens replace traditional braking transistor and resistor options that waste energy as heat during drive braking. Instead of dissipating braking energy as heat in a resistor, Line Regen solutions return this energy to the power grid. This reduces demand from the utility, which equates to ample energy savings.

The Bonitron Line Regen is efficient and small enough to be integrated into the drive cabinet. This eliminates excess resistor wiring and cooling costs.

For applications above 600A, a transistor/resistor and regen can be used together. See our Braking and Regen Brochure or contact us for more information.

*Note that the M3645F includes fuses and fuse holders


M3545 Line Regen
  • Single or 3-Phase 208 - 480 VAC | 50Hz/60Hz
  • 3-Phase Ratings
    • 6A - 15A Continuous
    • 9A - 22.5A for 60 Seconds
  • Single Phase Ratings
    • 2A - 5A Continuous
    • 3A - 7.5A for 60 Seconds
  • Status LEDs
Regen Comparison
M3645 Line Regen
  • 3-Phase 208 - 600 VAC | 50Hz/60Hz
  • 30A - 300A Continuous
  • 45 - 375A for 60 Seconds
  • Status LEDs or interactive digital display with event logging

*Reactor is Required where listed

*Reactor is Required where listed


Bonitron Line Regen units return regenerative energy back to the AC line where it can used by equipment within the facility. This reduces the amount of power required from the utility; reducing utility costs. The formula to the right is an example for a 100HP application. Visit Bonitron.com/RegenCalculator to see your potential savings.

The calculator does not include the cost of the Line Regen itself. Contact Bonitron for pricing and to discuss your application. When comparing a Line Regen to a Resistor, consider the added cost of wiring, conduit, or cooling for a resistor. While many resistors produce enough heat that they need to be located outside, Bonitron Line Regens are 99% efficient and are designed to be integrated into the drive cabinet.

Note: This calculator is for illustration purposes. Contact Bonitron to discuss your application and savings.

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