Electrical cabinets and equipment enclosures often have limited space for additional protective equipment. For buyers evaluating fire protection options, aerosol fire suppression is one technology worth understanding. A condensed aerosol fire suppression device releases fine particles and gases that help interrupt the chemical reactions sustaining a fire. The way the device activates, the amount of extinguishing agent it contains, and the conditions inside the enclosure all matter when assessing its suitability. This guide explains the basic principle and introduces the Ritchwave Electric TAF-series thermal aerosol fire extinguishing device as an example of localized protection for small enclosed spaces.
What Is Aerosol Fire Suppression?
Condensed aerosol fire suppression uses an aerosol-forming compound to produce a fire-extinguishing agent when activated. The released aerosol contains fine solid particles carried in gases.
Its primary purpose is to interfere with the combustion process. This differs from simply spraying water onto a burning surface or treating the device as a conventional handheld extinguisher.
It is also useful to distinguish a device from a complete fire suppression system. A compact generator is one piece of equipment. The overall protection arrangement must also account for the enclosure, activation method, installation conditions, and any required alarm or control functions.
The correct arrangement depends on the specific product and application.
How Does Condensed Aerosol Fire Suppression Work?
Fires are sustained by ongoing chemical reactions. Condensed aerosols help interrupt the combustion chain primarily by interfering with the reactive species involved in these reactions.
TAF series fire suppression devices utilize chemical suppression in both the gas and solid phases as their primary mechanism, complemented by a cooling effect.
For readers comparing products, the key distinctions lie in activation and suppression:
- Activation refers to the triggering of the device.
- Suppression refers to the action of the released substance on the fire.
Introducing the TAF-Series Thermal Aerosol Device
The Ritchwave Electric TAF series is designed for localized protection against incipient fires in small, enclosed spaces.
The unit features automatic thermal activation and requires no external piping or stored pressure. Its compact design makes it suitable for installations where space is limited.TAF-Series Models and Stated Protection Volumes
The product manual provides the following model-selection information:
| Model | Extinguishing agent mass | Stated maximum protected enclosure volume* |
|---|---|---|
| TAF-10 | 10 g | 0.10 m³ |
| TAF-20 | 20 g | 0.20 m³ |
| TAF-30 | 30 g | 0.30 m³ |
| TAF-40 | 40 g | 0.40 m³ |
These figures are listed in the TAF-series manual using a recommended extinguishing density of 100 g/m³.
What Should You Check Before Selecting a Device?
Prepare the following information:
- Equipment and applications: What is inside the electrical cabinet, and what hazards require protection?
- Internal dimensions: Measure the dimensions of the equipment to be protected.
- Operating conditions: Specify the normal temperature range and any unusual environmental conditions.
Installation and Use Limitations
The TAF device is very simple to install and inspect.
There are two installation methods for the device:
- DIN rail mounting;
- 3M adhesive backing mounting.
DIN rail mounting
3M adhesive backing mounting
Frequently Asked Questions
At what temperature does the aerosol fire extinguishing device activate?
The device activates to extinguish the fire at 160–170°C (320–338°F).
What is the service life of an aerosol fire extinguishing device?
The product has a shelf life of 8–10 years, but it must be kept dry and protected from moisture.
Can this device be reused?
No. This device is for single use and must be replaced after activation.
Can it protect open equipment areas?
This device is suitable for enclosed spaces; its effectiveness is not significant in open areas.
Discuss your fire protection needs.
To select the right aerosol fire suppression equipment, it is essential to first understand the equipment itself and its operating environment.
If you wish to discuss the TAF series, please provide details regarding enclosure dimensions, ventilation, operating conditions, and installation photos. Ritchwave Electric can then discuss suitable models and the product information required for a technical review.
Please explore our aerosol fire suppression equipment or contact Ritchwave Electric to discuss your application.
Questions about your application?
Explore our fire safety products, or contact our team to discuss product specifications and your requirements.
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