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|Published Sep 4, 2024|Updated Nov 1, 2024|3 MIN READ

Alfred – Custom Safety Solutions for Explosive Atmospheres

In hazardous environments, where combustible dust and flammable gases are present, safety is paramount.  And this is where the Alfred range by Fortress Interlocks really shines. At Proax, we understand that industrial environments have different safety needs. That's why we are pleased to offer Alfred – Explosive Atmospheres interlocks, designed in principle with full customization not only to meet but surpass your specific needs for safety.

Why Customization Matters in Hazardous Locations

Alfred – Explosive Atmospheres

No two hazardous locations are alike. From food and beverage processing to chemical processing to even the pharmaceuticals, each specific environment requires that the solutions for safety be an exact match. Keeping that in mind, the Alfred Series has been engineered with strong, heavy-duty interlocking devices that have been certified against some of the most challenging conditions, environments even including explosive atmospheres.

The Power of Alfred’s Customization

The Alfred interlocks are not one-size-fits-all solutions but can be customized to suit your peculiar safety needs. Pretty flexible, the actuators that fit, escape releases, and even up to three key adaptors positioned above an ex-rated switch or a solenoid module make for a really flexible Alfred interlock. From full mechanical to electromechanical, it is with Alfred that one can have solutions precisely custom-made to suit the specific needs of any given unit, thus ensuring the safety of your equipment against all explosion hazards.

Built for Durability in the Harshest Conditions

Manufactured from 316 stainless steel and rated to IP69, Alfred interlocks are built to last even in the most extreme of environments. They are capable of providing the highest levels of retention force up to 7 kN and are certified for use within areas where both gas and dust present specifically high risks or Zone 1 for gas and Zone 21 for dust. With this level of robustness, your safety systems will go on to give reliable performance even when things get really tough.

Alfred – Explosive Atmospheres

Tailored Solutions for Every Application

As a result, Alfred Range is quite versatile to apply in many differing areas.

Here's how you could customize Alfred for your needs:

Chemical and Pharmaceutical Industries.
Explosion risks can be minimized in industries where the trend of flammable gases is more when the actuators are engineered as a high-level interlocks with the Alfred interlocks. They can also be located at places very near to the equipment for extra safety without compromising on efficiency.

Food & Beverage Manufacturing
Beverage Manufacturing Trapped keys and guard locking should be fitted on the Alfred range to ensure that application areas prone to combustible dusts do not have accidental start-ups. This is specifically meant to provide protection from physical injuries to operators and equipment.

Wood, paper and pulp processing.
The Alfred interlocks, with the possible strong escape releases and various key adaptors for on-setting, could also apply in dusty working environments, ensuring the safety package is very reliable and user-friendly.

Why Choose Proax for Your Custom Safety Solutions?

At Proax, we don’t just offer safety products—we offer safety solutions tailored to your needs. Our team of experts will work closely with you to configure the Alfred interlocks to meet your exact specifications. With certifications from ATEX, IECEx, UKEx, and North American HazLoc, you can trust that your customized Alfred solution will meet the highest safety standards.


The Alfred – Explosive Atmospheres interlocks by Fortress Interlocks offer the ultimate in customization and safety for hazardous environments. Contact Proax today to discuss how we can configure an Alfred solution that meets the specific needs of your operation.

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