Decoupler DASD

Advanced protection for pipelines and personnel

The Decoupler DASD is a powerful solution designed to safeguard critical systems and workers from the dangerous effects of transient voltage events like lightning and surges. Available in our Red/Line catalog, the DASD decoupling device ensures reliable performance in even the most challenging environments, specifically pipelines and the employees who work with them.

Solving the transient voltage problem

Transient voltage presents a significant threat to the electrical equipment and components that make up your critical systems and facilities. A single strike or overvoltage caused by the daily noise from your internal systems could trigger a power outage, damage systems beyond repair, or even result in a fire that could endanger the lives of employees.

Industries with large infrastructure exposed to elements and spread across long distances – such as pipelines in particular – are negatively affected by these power quality disruptions, especially interference voltages.

These voltages can originate from lightning strikes, high-voltage lines, electric railways, or stray currents. Without adequate protection, such interference can lead to undesirable consequences like AC corrosion, equipment damage, or even injury to personnel. The Decoupler DASD provides robust protection to limit overvoltages, preventing these hazards from happening in the first place.

Technical specifications: What is the Decoupler DASD?

The DEHN Advanced Solid-state Decoupler (DASD) protects from the damaging effects of transient, temporary, and long-duration AC voltages.

Whether you need to protect your entire pipeline network or a single piece of critical equipment within a larger facility, the DASD offers reliable performance in environments where AC voltage risks are particularly high.

The Decoupler DASD works by decoupling DC and AC potentials, providing continuous overvoltage protection while preserving the cathodic protection potential of your systems. Its robust design allows it to withstand extreme electrical conditions, making it a fail-safe choice for long-term, high-stakes applications.

Key details of the device include:

IP68 housing: Water and dustproof for safe outdoor installation
Integrated test socket: For easy functional testing of the decoupler
High discharge capacity: Transient 100 kA, temporary 3.7 kA, long-duration 45 A
Clearly marked connections: No danger of confusing the pipeline and earth connection
Fail-safe failure mode: Safe state in case of overload

These specifications highlight the Decoupler DASD's capacity to handle extreme electrical loads. Its high discharge capability and IP68-rated housing make it an ideal choice for harsh and remote environments, offering a durable and long-lasting solution to prevent AC corrosion and protect your systems from the other risks associated with transient voltage.

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The Decoupler DASD excels in providing comprehensive protection. Additionally, the components’ protection capability ensures that vital systems continue to operate reliably with minimal risk of failure, minimizing disruptions and unexpected costs for your business.

Here are a few key benefits of implementing DEHN’s Decoupler DASD within your systems:

Flexible installation

Whether installed underground, mounted on a wall, or secured to a mast, the Decoupler DASD offers unmatched flexibility. Its compact, IP68-rated enclosure makes it ideal for use in tough conditions—dustproof, waterproof, and capable of withstanding the elements. Even in areas of particularly high risk of damage from transient voltage events, our decoupling device offers reliable protection.

No external power supply needed

Unlike many other systems, the Decoupler DASD requires no external power supply, allowing it to be installed in remote or isolated locations without worrying about energy requirements. Its robust design ensures long-term reliability, even in areas prone to potential changes or external voltage threats.

Safety and fail-safe operation

Safety is a key consideration for the Decoupler DASD. In the unlikely event of a system overload, the DASD will enter a fail-safe failure mode, ensuring that people working near the pipeline and earth connection remain protected from dangerous touch voltages. This fail-safe feature adds an extra layer of reassurance that your employees will always be safeguarded at work.

Easy testing and maintenance

The Decoupler DASD is designed with practicality in mind. An integrated test socket allows for quick and simple functional testing, ensuring that the system is always operating at peak performance. This ease of maintenance reduces the complexity and time associated with system checks, saving you both effort and resources.

Applications of the Decoupler DASD

The DASD decoupling device is particularly suited for industries where pipeline protection is critical, but like all DEHN solutions, it can be tailored to protect in a variety of environments and industries.

Industries that can benefit from the decoupler include:

Check out our Red/Line digital catalog for more information and to order the Decoupler DASD for yourself.

Browse the Red/Line catalog

Why DEHN?

Choosing DEHN means partnering with a global leader in transient voltage protection. With over a century of innovation and expertise, DEHN stands at the forefront of electrical protection solutions, developing cutting-edge products like the Decoupler DASD that not only safeguard infrastructure but also prioritize the safety of people working in these at-risk environments.

All of our solutions are compliant with NFPA 780 and IEC standards. The Decoupler is a CE-compliant solution that has been rigorously manufacturer-tested and certified. Our commitment to quality and innovation drives all of our products and projects.

Have questions? Contact DEHN today

Email: [email protected]

Phone: 866-806-3098

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