Detection classes

The EN 54-20 standard provides a classification of aspirating smoke detectors based on detection sensitivity.

The class of the detector must be chosen to suit the project requirements and the characteristics of the environments to be monitored.

Class A

Very high sensitivity detection systems that allow the detection of extremely diluted smoke in the air.

To be used in very clean environments where prompt detection is essential, such as, for example, “white rooms”.

Class B

Detection systems with advanced sensitivity that allow early detection of smoke.

To be used in environments where there are valuable or particularly vulnerable or critical assets such as, for example, electronic devices, server rooms, etc.

Class C

Detection systems with normal sensitivity that allow smoke detection in a similar way to traditional point detectors.

To be used in environments that do not present any specific criticalities.