The NuBRAKE™ is a gas over hydraulic braking system that effectively brakes (closes the wicket gates) upon hydroelectric power emergency situations or in controlled water power system closures. Closure timing is programmable, either manually using a settable valve or automatically through an optional automated valve with communication to the local NuTECH™ Controller. Timing can range from a few seconds to tens of minutes.

The brake is reset without manual intervention. Upon elimination of the emergency or upon a directed request to reset, the servo screw drives the brake back to the closed position to reset and lock the cylinder and re-pressurize the gas reservoir.