Reliance Electric Bonitron M3575R-H8BF Braking Resistor

Bonitron M3575R-H8BF braking resistor is a dynamic braking load designed to absorb regenerative energy from industrial AC drives and protect the drive DC bus from overvoltage. The 8 HP model delivers up to 6,968 watts of braking power at peak, with braking current ratings of 1.6 A RMS and 8 A peak, and a braking resistance of 90 ohms. Its enclosure measures 17.75 inches long by 4.00 inches wide by 9.50 inches tall and it weighs 11 pounds. This unit is specified for 460–480 VAC drive systems and is part of Bonitron’s M3575R family of braking resistors used to dissipate energy as heat during deceleration for motor-driven equipment. Common applications include conveyors, hoists, pumps, and fans where regenerative energy can raise the DC bus voltage during braking, preventing faults and stabilizing drive operation. The model number M3575R-H8BF identifies the 8 HP variant within the M3575R line.