Boston Gear RB2-90-180V DC Motor Speed Controller is a two-voltage DC speed control designed to operate motors rated for 90V or 180V and 1–2 HP. It is part of Boston Gear’s Ratiotrol family of adjustable-speed DC motor controls and provides smooth speed variation from a DC power source. Speed is set via an external control interface (potentiometer) to establish the desired output, aligning with standard Ratiotrol configurations used in industrial applications requiring adjustable DC drive. This compact, rugged controller is suited for DC motors in equipment that calls for reliable, variable-speed operation on either 90V or 180V DC supply.
