Eaton highlights Breaktor, Turbulator tech at ACT Expo

Eaton has expanded its Breaktor high-voltage circuit protection portfolio with a new single-pole variant. (Photo: Eaton)

At ACT Expo, May 4–7, 2026, in Las Vegas, Eaton’s Mobility Group is debuting a single-pole variant as an expansion of its Breaktor high-voltage circuit protection portfolio. The expansion is intended to give engineers greater flexibility in designing and protecting next-generation electric vehicle systems.

The single-pole Breaktor enables separation of battery poles and integration with components such as latching relays or pyrotechnic disconnects on the negative line. According to the company, its low-resistance design minimizes power loss in electric vehicle systems, improving efficiency and supporting faster charging.

Eaton’s Turbulator-equipped hollow engine valves are engineered to improve internal valve cooling. (Photo: Eaton)

Also on display is a 24V control interface designed for commercial vehicles, particularly heavy-duty trucks operating on 24V auxiliary systems. It enables seamless integration into platforms using dual-pole disconnection strategies, expanding Breaktor’s applicability across high-voltage commercial systems. The new control option is being shown alongside an upgraded functional safety classification (ASIL-D) and a 35-kiloamp short-circuit interruption capability for the dual-pole lineup. 

Also highlighted is the booth is Turbulator cooling technology. Turbulator-equipped hollow engine valves are engineered to improve internal valve cooling by increasing sodium movement within the hollow structure. This enhanced circulation boosts heat transfer away from the valve head, Eaton explained, improving thermal management and helping engines maintain reliable performance under the higher temperatures and loads common in heavy-duty applications. The exhibit display illustrates how the valves can help commercial vehicle manufacturers manage extreme engine temperatures in heavy-duty operating environments.

In addition, the booth features late intake valve closing (LIVC) systems designed to provide improved control of engine airflow and compression, enabling manufacturers to refine combustion strategies. High-power engine brake technologies, engineered to integrate seamlessly with commercial vehicle air brake systems, are also on display. They are designed to deliver added control on steep grades and under heavy loads, easing reliance on service brakes.