Fully Automatic System Tailored to Your Application No External Power Required 24/7 Protection Built for Harsh Environments Engineered for Mobile Equipment Certified for Regulated Markets Fully Autonomous Operation Manufactured In-House Designed for Operational Continuity Fast Detection & Suppression Compact System Design R107 Approved Vehicle Systems CE Certified Manufacturing Installation by Certified Partners

Automatic R107 Fire Suppression for Regulated Transport Applications

R107 compliant automatic fire suppression systems for buses and ADR trucks.
Designed for regulated transport markets.
CE and ISO 9001 certified manufacturing.

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Industry Risk

Fire Protection in Passenger and Hazardous Goods Transport

Passenger buses and ADR trucks operate under continuous thermal, mechanical and electrical stress. Engine compartments contain fuel systems, lubricants, hydraulic components and high-temperature exhaust systems within confined spaces.

In the event of ignition, escalation can occur rapidly, particularly in vehicles transporting dangerous goods or carrying passengers.

The consequences may include:

Automatic detection and suppression significantly reduce escalation risk.

Common Ignition Sources

Typical Fire Hazards in Buses & Trucks

Engine compartments in buses and heavy-duty trucks combine high temperatures, combustible fluids and electrical systems within confined spaces. During continuous operation, small technical failures can escalate rapidly when no automatic suppression system is present.

Overheated Turbochargers & Exhaust Systems

High engine loads generate extreme temperatures near combustible components.

Fuel & Oil Leaks

Diesel, lubricants and hydraulic fluids increase ignition probability when exposed to heat.

Electrical Short Circuits

Wiring faults, battery systems and alternators create arc-related fire risks.

ADR Cargo Risk Exposure

Transporting dangerous goods increases the potential impact of fire incidents and regulatory consequences.

Protega R107 fire Suppression Systems

Engineered for Regulated Transport

Protega designs and manufactures R107 compliant automatic fire suppression systems specifically for buses and ADR trucks.

Systems are configured to protect:

Upon exposure to critical temperature, the system activates automatically — without reliance on operator response.

Available system configurations include fully autonomous pneumatic activation, eliminating dependency on vehicle battery or CAN-bus systems.

How Our Systems Work

Direct and Indirect Detection Technologies

Protega fire suppression systems can be configured as direct or indirect systems depending on enclosure layout and suppression strategy.

Protega R107 systems primarily utilize pneumatic detection tube technology.

The heat-sensitive polymer tube is continuously pressurized (approx. 20 bar) and routed throughout the engine compartment.

When exposed to flame or critical radiant heat:

This configuration:

In an indirect system, the pneumatic detection tube functions solely as the fire detection element. It does not discharge the extinguishing agent.

The pressurized detection tube is routed through the protected compartment near identified risk areas. When thermal activation occurs, it pneumatically triggers the suppression cylinder without acting as the discharge line.

When exposed to flame or critical radiant heat:

Unlike the direct configuration, the extinguishing agent is not released through the rupture point itself. Instead, it is distributed via strategically positioned discharge nozzles engineered according to enclosure geometry and airflow patterns.

This enables controlled and volumetric suppression across larger or segmented compartments.

Agent selection

Suppression Agents for R107 Applications

Agent selection is based on application-specific fire risk assessment.

ABC Dry Powder

Primary Vehicle Configuration

For most bus and ADR truck engine compartments, ABC dry powder is the preferred suppression agent. It provides rapid flame knockdown across multiple fire classes commonly present in vehicle environments.

Engine compartments contain fuel systems, lubricants and electrical components, requiring broad-spectrum suppression capability.

Technical characteristics:

Widely applied in engine compartments where fast response and regulatory compliance are critical.

Why We Use Specific Extinguishing Agents

Protega Solutions ensures that our fire suppression systems are suitable for the most common extinguishing agents such as powder, foam, and clean agents (extinguishing gases). Selecting the right extinguishing agent for the right application is crucial for effective fire suppression.

Tailoring the Extinguishing Agent to the Application

We choose the appropriate extinguishing agent based on the specific needs of each application. Factors such as the type of vehicle, the nature of the cargo, and the potential fire risks are considered to ensure optimal protection.

Proven Effectiveness of ABC Dry Chemical

As demonstrated by Rise in the SPCR tests (SPCR183, SPCR199, P-mark), ABC dry chemical is the only extinguishing agent that has been proven effective against all common (tested) fires in engine compartments of buses and other heavy equipment. This makes it a reliable choice for comprehensive fire protection in these high-risk environments.

Selection of Extinghuising Agents

Tailored to the Application

R107 Certification

Why R107 Compliance Matters

UNECE R107 is the European regulatory framework governing fire suppression systems in buses and coaches. It defines strict performance and testing criteria to ensure reliable detection and suppression in engine compartments.

In ADR applications, transporting dangerous goods further increases the need for reliable automatic suppression systems capable of responding immediately to ignition.

Protega systems are designed and manufactured to meet R107 requirements for regulated vehicle applications.

Regulatory requirement in many markets

Prerequisite for vehicle approval

Critical component of passenger safety strategy

System Architecture

Engineered System Design for Vehicle Integration

A typical R107 vehicle configuration may include:

Integration & Optional Add-ons:

Benefits of a Protega R107 System

Designed for Safety and Operational Continuity

Enhanced Safety

Automatic detection and suppression reduce escalation risk.

Regulatory Compliance

Designed to meet UNECE R107 requirements.

Minimized Downtime

Early suppression limits secondary damage.

Cost Efficiency

Reduced loss exposure and insurance impact.

Operational Reliability

Engineered for vibration-intensive and harsh environments.

Certification & Quality Management

Regulatory Compliance and Controlled Manufacturing Standards

UNECE R107 compliant vehicle systems

CE certified manufacturing

ISO 9001 certified quality management system

In-house engineering and production

OEM & Fleet Integration

Engineering Support from Design to Retrofit

Protega supports both vehicle manufacturers and fleet operators with structured integration programs.

For OEM applications, systems can be incorporated during the vehicle design phase to ensure seamless installation and regulatory alignment. For existing fleets, retrofit solutions are engineered for minimal operational disruption.

Installation is performed by Protega or certified partners, supported by technical documentation to facilitate compliance procedures and approval processes.