The H3 Power Unit is Hilliard's most advanced brake control system. With a PID Loop Control, the BBH3 Power Unit is capable of monitoring speed. The Hilliard BBH2 Power Unit incorporates an engineered hydraulic circuit to control the brake torque during a typical stop. Large capacity hydraulic accumulators provide additional volume for precise control of brake pressure. Equipped with manual overrides and hand pump for power outages, high pressure filtration and control braking mode, the BBH3 power unit can be customized to accept other signals that are relevant to the application.

Hilliard BBH4 power unit is suitable for brakes demanding pressures above 3,000 PSI. It includes on/off and ramped braking modes. The power units are highly customizable, allowing customers to specify component types for several items in the system, including the motor, electrical panel, RTD, and pressure transmitter. The unit includes an isolated hand pump specifically useful in power outages.