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RONIS develops interlock systems for faultless security


Operations in electrical power stations are potentially hazardous; a slight error or moment of inattention can be fatal. RONIS of France has now developed a full range of interlock systems designed specifically to ensure the safety of users and material during work on medium- and high-voltage machines and electrical installations. This extensive range is organized into four product families and offers a large number of locks that can be adapted to any hazardous component by requiring manipulation in a specific order. These systems can be tailored to companies' specific needs.

From locking isolator controls to access locks (flaps, doors, covers, etc.), including locking systems for circuit-breaker switches, inverters or transformers, the interlock range by RONIS was specifically designed for maximum safety. Each hazardous component is protected by one or more locks, each of which can only be opened with its own specific key. A key will not be available to open a given lock if the preceding lock was not correctly released, making the locks interdependent. This system is the most secure, because the locks are mechanical and therefore more reliable. Every operation is carefully integrated into a full process, where the use of the keys prevents any infringement of the required procedure and eliminates any risk of error.

These systems are made entirely of metal, using high quality, durable materials chosen to ensure maximum reliability. Built around a sturdy stainless steel case able to withstand difficult environments, each interlock has a brass cylinder pin-tumbler offering a wide range of keying combinations. A brass key completes the system for optimal security.

A new key center supplements this already very extensive range. The ELC board makes it possible to activate and release one or more keys by introducing them sequentially, requiring them to be manipulated in a specific order. Equipped with at least seven cylinders, the new ELC board is more compact for ease of installation and transport. The ELC board is available in three models (7 to 12 cylinders, 13 to 18 cylinders, 19 to 24 cylinders).

In addition, a new type of reversible key has just been developed that is harder to copy and offers some 80,000 secure combinations.


A subsidiary of the SECURIDEV group, RONIS is specialized in locking systems for industrial applications.

RONIS generates 50% of its sales through export. The company does business in Europe and in many other countries through specialized distributors able to meet any request for after-sales service or replacement of single-unit items.
RONIS strives for continuous innovation and files new international patents every year.
RONIS is ISO 9001 certified.

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