The Allen-Bradley 2090-SR120-09 is a passive shunt resistor module specifically designed to enhance the dissipative capabilities of Ultra 3000 servo drives, particularly when managing large inertial loads. Compatible with 400 Volts AC Ultra 3000 drives, the module operates within a resistance range of 120 to 148 Ohms and offers a continuous power rating of 900 Watts, with a peak power capacity of 5.3 kilowatts at a peak current of 6.7 Amps. This module ensures drive protection by activating only when needed to regulate excessive Bus voltage, and it is housed externally in enclosures rated IP 54, IP 64, or NEMA Type 4 for optimal dust and splash resistance.
