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Fail Safe vs Fail Secure in Locking Systems

When it comes to access control systems, two common terms you’ll encounter are fail safe and fail secure. These concepts are especially important when choosing locks, maglocks, and electric strikes for securing a building. Understanding the difference between fail safe and fail secure is essential to ensure both security and safety during power outages or emergencies. Let’s dive deeper into what these terms mean and how they apply to different types of locking mechanisms.

 

What is Fail Safe?

In simple terms, a fail-safe lock unlocks when power is lost. This type of lock is designed with safety in mind, ensuring that people can quickly exit a building during emergencies such as fires or other life-threatening situations. Fail safe mechanisms are commonly used in maglocks (magnetic locks), where an electromagnet holds the door closed while power is active. Once the power is cut, the lock disengages, allowing free egress.

Fail safe locks are often installed in public buildings, hospitals, and other environments where safe evacuation is critical. These locks rely on a continuous power supply to stay secure, and if that power is interrupted, the door becomes unlocked.

Example of Fail-Safe Applications:

  • Maglocks in emergency exit doors
  • Entry doors in public facilities
  • Secure areas that prioritize safety over security during power outages

 

What is Fail Secure?

On the other hand, a fail secure lock remains locked when power is lost. This setup is designed to prioritize security, keeping unauthorized individuals out even if the power goes down. Electric strikes, which control access by either releasing or holding a door latch, are often fail secure. In a power failure, the door stays locked, maintaining security in sensitive areas like data centers, storage rooms, or other places where keeping intruders out is more important than rapid exit.

Fail secure systems are typically used where the priority is to protect assets and sensitive information. These locks remain in a locked position unless power is provided, or an emergency override is activated.

Example of Fail Secure Applications:

  • Electric strikes on office entry doors
  • Server rooms and data centers
  • Storage rooms containing valuable equipment

 

Fail Safe vs Fail Secure: Which is Best?

Choosing between fail safe and fail secure locks, maglocks, or electric strikes is a critical decision in designing a reliable access control system. While fail safe locks prioritize safety, fail secure locks are focused on security. Understanding your building’s unique requirements for both safety and security will help you make the right choice for each entry point. Selecting the appropriate locking mechanisms creates a balanced access control system that keeps occupants safe while protecting assets.

CDVI’s locking solutions are robust and built for longevity. From electric strikes to maglocks and accessories, we provide what you need to complete your access control system.

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