M3452-U1600HT10-R7E

The Bonitron M3452-U1600HT10-R7E is a heavy-duty braking transistor designed for high-horsepower 460–480 VAC variable frequency drive applications. Rated for up to 1600 A peak braking current, this unit monitors the VFD DC bus and directs excess regenerative energy to an external braking resistor when bus voltage rises. This controlled dissipation helps prevent DC bus overvoltage faults while providing faster, more predictable motor stopping. The M3452-U1600HT10-R7E uses 120 VAC control power and features the R7E control option for enhanced system status, diagnostics, and control capabilities. With a 750 VDC braking setpoint and 0.47-ohm minimum braking resistance, this configuration is suited for demanding regenerative loads requiring high-current dynamic braking and reliable overvoltage management.