Grade 4 safes | EN 1143-1 burglary and fire resistant

Grade 3 safes are certified in accordance with the European standard EN 1143-1 and belong to the segment intended for medium-risk applications involving the storage of valuable goods and documents. This standard evaluates resistance to burglary attempts using mechanical, electrical and thermal tools, tested under strictly controlled conditions by independent certification bodies such as ECB-S.

EN 1143-1 Grade 3 is applied where a reliable level of security is required, both in professional environments and for private use. The classification serves as an objective reference for insurability, with the specific conditions always determined by the insurer. Atelier Boonen advises and supplies solutions throughout Belgium.

In accordance with EN 1143-1, burglary resistance is expressed in Resistance Units (RU). For Grade 3, the resistance level is 80 RU for partial access and 120 RU for full access.
Partial access refers to the creation of a limited opening, while full access implies complete access to the contents, for example by opening the door or creating a large opening.

Grade 3 burglary- and fire-resistant safes are intended for applications where, in addition to burglary protection, protection against fire damage is required. These safes combine a burglary-resistance certification according to EN 1143-1, Grade 3, with an additional fire resistance test carried out in accordance with a separate fire standard.

As fire resistance is not a standard component of EN 1143-1, this property is always tested and certified separately in order to ensure the protection of valuable goods and documents in the event of fire.

Within this segment, models are available with different levels of fire protection. Depending on the model and the fire test performed, 30 minutes or 60 minutes of fire resistance for paper may apply. A version offering 60 minutes of fire resistance provides a higher level of protection and is often selected when specifically searching for a Grade 3 fire-resistant safe or a Grade 3 safe with 60 minutes of fire protection.

An example of a Grade 3 burglary- and fire-resistant safe is the DRS Euro Defender 60P, as shown alongside. This safe combines burglary resistance according to EN 1143-1, Grade 3, with tested fire resistance of 60 minutes for paper. Thanks to its relatively lightweight construction and efficient design, this type of safe represents a practical and accessible solution for applications where both burglary and fire protection are required.