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A Compact Automatic Fire Protection Solution for Enclosed Electrical Spaces
With the increasing density of electrical components inside modern distribution boards, control panels, and PV electrical cabinets, fire risks caused by overheating, short circuits, or arc faults are becoming a serious concern. Traditional fire suppression systems are often too large, too complex, or require external power sources.
The Aerosol Fire Extinguishing Device for Electrical Cabinets offers a new generation solution—compact, self-activated, power-free, and designed specifically for enclosed electrical spaces.
Contents
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What Is an Aerosol Fire Extinguishing Device?
An aerosol fire extinguishing device is a self-contained automatic fire suppression unit that releases a fine aerosol agent when exposed to open flame or high temperature.
Unlike gas cylinders or water-based systems, this device:
Requires no external power
Does not rely on piping or wiring
Activates automatically once the trigger temperature is reached
It is especially suitable for sealed or semi-sealed electrical enclosures where early-stage fire suppression is critical.
Designed for Electrical Cabinets and Distribution Boxes
This heat-activated aerosol fire extinguisher is specifically engineered for use inside:
Electrical distribution cabinets
Control panels
Low-voltage switchboards
Industrial electrical enclosures
Thanks to its compact structure, the device can be installed directly inside the cabinet without affecting internal wiring or airflow.
Flexible Installation Methods
To accommodate different cabinet designs, the device supports two simple mounting options:
DIN rail mounting – suitable for standard electrical cabinets
Adhesive side mounting – ideal for compact or irregular inner spaces
Once installed, no electrical connection is required, reducing installation complexity and eliminating wiring-related failure risks.
How the Aerosol Fire Suppression Works
When a fire occurs inside the electrical cabinet:
- The internal temperature rises rapidly or open flame appears
- Once the temperature exceeds 170°C, the device is automatically activated
- Aerosol agent is released within less than 10 seconds
- The aerosol interrupts the chemical chain reaction of the fire
- Fire is suppressed quickly before it spreads to surrounding components
This process occurs entirely automatically, without human intervention.
Key Technical Specifications (Model: MD-HAFED)
Model: MD-HAFED
Operating Temperature Range: -50°C to +95°C
Automatic Activation Temperature: >170°C
Service Life: 10 years
Extinguishing Density: 100 g/m³
Spray Release Time: < 10 seconds
Surface Temperature of Casing: < 200°C
Protected Space Capability:
0.25 m³ at ambient temperature < 75°C
0.12 m³ at ambient temperature < 200°C
0.05 m³ at ambient temperature < 400°C
⚠️ Safety Notice: After discharge, do not touch the device casing immediately to avoid burns. Wait until the surface temperature has cooled before handling.
Aerosol Composition and Fire Suppression Mechanism
The aerosol agent is generated from a solid compound and released as ultra-fine particles, ensuring uniform dispersion inside the enclosure.
Oxidizer & Content:
Strontium-based compound: 60%
Potassium nitrate (KNO₃): 20%
This composition allows the aerosol to suppress flames effectively without causing secondary damage to electrical components when used correctly in enclosed spaces.
Compliance with International Standards
The device is manufactured in accordance with:
EN 15276-1:2019
EN 15276-2:2019
These standards define performance and safety requirements for condensed aerosol fire extinguishing systems, ensuring reliability and consistency in critical fire protection applications.
Advantages Compared to Traditional Fire Protection Solutions
Compared with conventional fire extinguishing methods, aerosol devices offer several unique benefits:
No external power supply required
No wiring, piping, or control panels
Extremely compact and lightweight
Rapid response to early-stage fires
Ideal for sealed electrical spaces
Minimal installation and maintenance cost
These advantages make aerosol fire extinguishing devices especially attractive for distributed electrical systems and compact cabinets.
Typical Application Scenarios
This aerosol fire extinguisher is well suited for:
Electrical distribution boxes
PV system electrical cabinets
Industrial control panels
Communication and automation cabinets
It is particularly effective in environments where early fire suppression is essential and space is limited.
Why Aerosol Fire Protection Is Gaining Market Attention
As electrical systems become more compact and energy-dense, traditional fire protection methods are often impractical. Aerosol fire extinguishing devices represent a growing trend toward:
Localized fire suppression
Autonomous safety systems
Simplified installation
Reduced maintenance requirements
This is why aerosol fire suppression solutions are increasingly adopted in new-generation electrical and energy systems.
Conclusion
The MD-HAFED Aerosol Fire Extinguishing Device provides a modern, efficient, and reliable fire protection solution for electrical cabinets and enclosed electrical spaces. With automatic activation, flexible installation, and compliance with international standards, it is an ideal choice for protecting critical electrical equipment against early-stage fires.
As fire safety requirements continue to rise, aerosol fire extinguishing technology is set to become an essential component of future electrical cabinet design.
