Fans used for smoke and heat extraction during a fire must meet strict requirements. The European standard EN 12101-3 specifies the classification, requirements, and testing methods for fans that need to perform reliably in these situations. This article explains what the standard entails, what to consider when selecting an SHE fan, and which temperature classes exist.

What is EN 12101-3?

EN 12101-3:2015 is the current European standard for mechanical smoke and heat extraction fans. These fans remove smoke and heat during a fire from buildings such as parking garages, industrial halls, tunnels, or stairwells. This improves visibility for evacuation and emergency services and limits fire damage.

EN 12101-3标准全称为《烟和热控制系统第3部分：排烟风机规范》，专门针对消防排烟风机的设计制造提出严格要求。该标准规定风机在300℃高温环境下必须持续运行至少120分钟，叶片变形率不得超过10%，且需通过严格的耐火试验。值得注意的是，标准还要求风机在断电后能自动切换至应急电源，确保火灾时的持续排烟能力。

EN 12101-2：适用于自然排烟天窗，即依赖建筑结构或风压实现排烟功能的产品。
EN 12101-3：适用于电动排烟天窗，需通过风机等动力装置辅助排烟。

To comply with the standard, a fan must:

Be specially tested for smoke and heat extraction at extreme temperatures;
Be correctly marked with the appropriate temperature class (e.g., F200, F300, F400, or F600);
Include corresponding test reports and CE marking.
 
The standard is part of the broader European fire safety framework for buildings (EN 12101 series).

Temperature classes according to EN 12101-3

The main classification in EN 12101-3 is the temperature class. This indicates up to which temperature the fan can withstand and how long it can operate under those conditions:

Class Temperature Operating Time
F200 200°C 120 minutes
F300 300°C 60 minutes
F400 400°C 120 minutes
F600 600°C 90 minutes

Note: The entire fan (including motor, impeller, casing, and bearings) must be tested under these conditions. Only then can the product be delivered as certified according to EN 12101-3.

What to consider when choosing smoke exhaust fans?

When selecting a fan for smoke and heat extraction, it is important to look beyond just the temperature class. Also consider:

Construction material: suitable for high temperatures and corrosive environments;
Motors: specially designed for smoke and heat extraction, often with IP55 protection and high-temperature resistance;
ATEX environments: additional requirements apply for explosive atmospheres;
Power supply: emergency power or UPS may be mandatory in critical applications;
Fan type: both axial and centrifugal models are available in smoke and heat extraction versions.

Examples of applications:

Fire ventilation in parking garages (often with induction or impulse fans);
Stairwell ventilation;
Smoke compartmentalization in industrial halls;
Tunnel ventilation.

What does F300 mean for fans?

It means the fan is certified for use at 300°C for 60 minutes. This is a common class for smoke and heat extraction applications in parking garages and buildings.

Is EN 12101-3 mandatory?

In many countries (including the Netherlands), compliance with this standard is mandatory when fans are part of a building’s fire safety concept.

What is the difference between F400 and F600 fans?

F600 fans are designed for more severe conditions (600°C, 90 min.) and are used in tunnels or industrial situations with increased fire risk.

Are there axial and centrifugal smoke exhaust fans?

Yes. Depending on airflow, pressure requirements, and installation situation, both types are used.

自然排烟天窗EN12101-2/电动排烟天窗EN12101-3欧盟CE认证有什么区别？ https://www.firete.com/popular_standards/19444.html

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