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

Grade 4 safes and fire safes are certified in accordance with the European standard EN 1143-1 and belong to the high-security segment for 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 4 is applied where an increased level of security is required, both in professional and private environments. The classification serves as an objective reference for insurability, with the specific conditions always determined by the insurer. Atelier Boonen advises and supplies solutions to customers throughout Belgium.

Within EN 1143-1, burglary resistance is expressed in Resistance Units (RU). For Grade 4, the resistance level is 120 RU for partial access and 180 RU for full access. Partial access refers to the creation of a limited opening, while full access means complete access to the contents, for example by opening the door or creating a large opening.

Fire-resistant and burglary-resistant Grade 4 safes and fire safes are intended for applications where both burglary protection and protection against fire damage are required. These safes combine burglary resistance certification according to EN 1143-1 with an additional fire resistance test carried out in accordance with a separate fire standard.

This type of fire-resistant safe or fire safe in Grade 4 is used when, in addition to valuable goods, paper documents, files or archives must remain protected in the event of a fire. As fire resistance is not a standard part of EN 1143-1, this characteristic is always tested and certified separately.

Within this segment, versions are available offering different levels of fire protection. Depending on the model and the fire test performed, protection of 30 minutes or 60 minutes for paper may apply. A version providing 60 minutes of fire protection offers a higher level of security and is frequently selected when users specifically look for a Grade 4 fire-resistant safe or a Grade 4 fire safe with 60 minutes of fire protection.

An example of a heavily constructed fire-resistant Grade 4 safe is the Robur Grade 4 safe range, as shown alongside. These massive safes combine high burglary resistance in accordance with EN 1143-1 with a fire resistance tested for 60 minutes, resulting in a robust solution for applications with increased requirements for both burglary and fire protection.