[NEW] PROtrough 350
Get more capacity for your cable troughing project.
Our all-new PROtrough 350 is the biggest member of the PROtrough product line. It offers an innovative solution to suit large trough systems for rail, light rail and power markets.
In a modern alternative to traditional concrete cable trough systems, you get a solution that’s lightweight, modular, and fire-retardant – while delivering improved project outcomes.
Product overview
- Built to excel in diverse environments – from railways to substations to tunnelling and energy projects
- Lightweight but robust design ensures reliable performance in even the most challenging conditions
- Complies with major rail fire retardancy specifications for tunnels and stations – unlike alternative lightweight thermoplastic troughing systems
- Flexibility and seamlessness across your project ensured, thanks to easy access with other Cubis access chamber and cable protection products
Features of the PROtrough line
Lightweight
Lightweight composition offers significant health and safety advantages over traditional concrete troughing systems. (Often weighing over 90kg!)
GRP composition
Glass Reinforced Plastic composition offers superior strength, without compromising on weight or ease of handling.
Weather-resistant
A concave shape enables water run-off, while moulded slots within the base allow for drainage. Ideal for long-term, durable use.
The ultimate in fire standards
PROtrough complies with all European fire-retardant specifications, including those for tunnels and stations.
Secure
Robust linear ballast anchor points ensure your installed units aren’t displaced by the velocity of passing trains or vehicles.
Easy to deploy
PROtrough features simple slide and drop male to female connectivity, handy grappling points, and quick, modular assembly.
Seamless
Integrates perfectly with other Cubis access chamber and cable protection products – giving you a faster, easier project overall.
A true time, cost, and carbon saver
Combined, the benefits of a lightweight, sustainable, and easy to install solution considerably improve your overall product outcomes.
How it works
PROtrough 350 is a highly durable cable protection system that easily resolves engineering challenges for cable laying. The system offers a simple slide and drop male to female connectivity with a unique one click interlocking cover and sliding mechanism.

A safe walkway
By placing multiple PROtrough 350 units together, you can create a safe, easy walkway. The dual-purpose design optimises limited space by combining cable protection with a functional walkway, making it ideal for tight or high-density projects. Plus, the integrated design means fewer separate components to install. This reduces your installation time and simplifies your project planning.

Quality materials
Glass Reinforced Plastic (GRP) is strong, extremely light, and highly versatile. For you, this top-quality material means fire retardancy, resistance to chemicals and corrosion, and safety in enclosed electrical spaces.

Seamless integration
The PROtrough 350 offers seamless integration with the Cubis range of cable protection and access chamber products. (Such as ULTIMA Connect and MULTIduct™.) In turn, you get enhanced cable management and access for a project that's quicker and easier to deliver.

Load rating & ISO certification
The PROtrough range meets the vertical load class of A15 set by EN124. PROtrough has been designed with optimum sidewall strength performance to ensure minimal flex when back filled. Plus, the solution is approved for full use within electrical substation compounds. Check the product datasheet for an overview on its many ISO-certified strength credentials.