Glossary of Terms

Dual Key Safe:

Safe designed with 2 key locks, one key is for the Cash Clearing security guards, and the second key is for the safe user.  Both keys must be turned to open the safe door.

EDF Safes:

Explosive, Drill and Force Resisting. Classification used to describe the security level for the design and construction of the safe. 


A relocking device is an auxiliary locking device intended to be activated during an attempted burglary of a safe or vault. Such a device will keep a safe or vault locked even if the primary lock is defeated. This independent mechanism is designed to maintain the locked state of a safe even if the lock itself is destroyed. This auxiliary locking device usually consists of a spring-loaded bolt of some type, held in check by a bracket or cable that is rigged to release the mechanism in a burglary attempt. The device will either block the main boltwork from retracting or block the door from opening.

1/ Thermal relocking devices
Designed as a defense against torch attacks, these are simply relocking devices equipped with a fusible link designed to melt and release the relocking device if the temperature inside the door exceeds a certain temperature (usually 65°C), as would happen in a torch attack.

2/ Glass relocking devices
A glass relocking device is a piece of glass, usually tempered, placed where it might be expected to break in a burglary attack. It is attached, usually with wires, to one or more spring-loaded bolts, which are often randomly located. A drill or torch may break the glass, releasing the bolts.


Security Construction and Equipment Committee Endorsed, Australian Standard for Government Grade Safes and Security Containers with SCEC Endorsement.

TDR Safes:

Torch and Drill Resisting. Classification used to describe the security level for the design and construction of the safe. 

UL Underwriters Laboratories:

UL is an independent product safety certification organization that has been testing products and writing standards for safety for more than a century. UL evaluates more than 19,000 types of products, components, materials and systems annually with 20 billion UL Marks appearing on 66,000 manufacturers' products each year. UL's worldwide family of companies and network of service providers includes 68 laboratory, testing and certification facilities serving customers in 102 countries.