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Since 1939, nVent ERICO Cadweld has been the rail industry standard for making critical exothermic cable-to-rail welded bonds for signal, power and grounding applications. The product offering is always being improved upon to make it safer, easier and more convenient to use. The recent addition to the catalog, the nVent ERICO Cadweld Plus Impulse Exothermic Welding Control Unit for Rail, is designed to improve on previous control units with a specific focus on making the welding process safer for installers.

1. Distance from the weld

It is important to keep a safe distance from the weld during ignition. The new control unit is available with 6’ or 15’ leads. This is a significant safety advantage over a flint gun, which requires the user to be in close proximity to ignite the weld. The increased distance increases safety, and ensures that the installer is safely positioned away from the weld location.

2. Product design

The nVent ERICO Cadweld Plus Control Unit for Rail is specifically designed with features to give the installer more control over the device. The ergonomic grip makes the device easier to hold, and the trigger guard prevents the ignition button from accidentally being pressed.

3. Timing display

Finally, the ignition timing LED count up display provides feedback on the status of the ignition sequence. The bright LEDs are easily visible and notify the installer when weld will ignite. This gives installers time to make sure the area is clear and the weld can safely be initiated.


nVent ERICO products are designed to make installations safer, easier and more convenient. The new control unit improves safety by allowing the weld to be initiated further from the weld location, having a product design that makes the device easier to hold and control and displaying an LED count up to ignition.

Learn more by downloading the nVent ERICO Cadweld Plus for Rail brochure.