Remote shutdown system for hazardous areas

GENGUARD® TETRA
Automatic Shutdown System

Remote Shutdown. Instant Safety. Total Control.

The GENGUARD® TETRA Automatic Shutdown System is a remote shutdown system for hazardous areas, designed to safely isolate diesel generators and non-Ex equipment in Zone 1 and Zone 2 explosive environments.

By enabling instant remote shutdown and automatic gas-triggered response, GENGUARD® TETRA significantly reduces ignition risk, protects personnel, and ensures compliance, without requiring operators to enter hazardous zones.

Engineered for safety-critical industries, it provides a controlled, reliable method of separating ignition sources from explosive atmospheres.

Why choose GENGUARD® TETRA?

• Remote shutdown from a safe location
  Instantly shut down generators and power equipment from outside the hazardous area, minimising operator exposure and improving response time.
• Automatic shutdown on gas detection
  Integrated with gas detection systems to automatically isolate power when hazardous gases are present.
• Integrated facility alarm response
  Triggers shutdown when site alarms activate, adding an additional layer of safety.
• Eliminates on-site standby personnel
  Removes the need for operators to remain near generators, reducing labour costs and exposure to risk.
• Engineered for site integration
  Designed to integrate with existing generators and safety systems, with installation tailored to site requirements.
• Certified for hazardous areas
  Fully IECEx and ATEX compliant for Zone 1 & Zone 2 environments, including hydrogen (IIB + H₂).

Proven performance

“The GENGUARD has been a game-changer for our safety protocols. Knowing that our team is protected from exposure while still maintaining control over power systems gives us unmatched peace of mind.”

Key benefits

• Remote shutdown of generators in hazardous areas
  Allows operators to isolate ignition sources without entering high-risk zones
• Reduces ignition risk in explosive environments
  Automatically and manually removes power sources when required
• Improves personnel safety
  Minimises exposure to hazardous areas during critical operations
• Ensures regulatory compliance
  Meets IECEx and ATEX requirements for hazardous area equipment
• Lowers operational costs
  Eliminates the need for standby personnel near generators
• Maintains operational control
  Enables fast, controlled response without disrupting site coordination

Key features

• Remote shutdown capability
  Enables safe control of power equipment from outside hazardous zones
• Automatic shutdown via gas detection systems
  Integrates with gas safety monitors for real-time response
• Facility alarm integration
  Initiates shutdown when site alarms are triggered
• Rugged IP66-rated enclosure
  Built for harsh industrial and outdoor environments
• Customisable configurations
  Adapted to meet site-specific safety and operational requirements
• Broad equipment compatibility
  Suitable for diesel generators and non-Ex electrical equipment

Applications

GENGUARD® TETRA reduces ignition risks associated with diesel-powered and non-Ex electrical equipment, helping operators achieve ALARP (As Low As Reasonably Practicable) risk levels.

• Oil & gas operations
• Chemical processing plants
• Mining and resource sites
• Hydrogen production and storage facilities
• Remote and temporary industrial sites
• Zone 1 & Zone 2 hazardous areas

Compliance & certification

• IECEx certified
• ATEX compliant
• Suitable for Zone 1 & Zone 2 (Gas Group IIB + H₂)

Ensuring safe operation in high-risk and explosive environments.

Technical specifications

• Zone Rating: Zone 1 & Zone 2 (Gas Group IIB + H₂)
• Equipment Protection Level (EPL): Gb
• Temperature Classification: T5
• Operating Temperature: -20°C to +45°C
• Ingress Protection: IP66
• Power Supply: 12–24V DC / 230V AC
• Frequency: 50/60 Hz
• Dimensions (H × W × D): 790 × 450 × 313 mm
• Plug Options: CEAG, STAHL (others available on request)

The GENGUARD® TETRA advantage

Unlike standard shutdown systems, GENGUARD® TETRA combines remote operation with automatic gas-triggered shutdown, providing a safer and more controlled approach to managing ignition risk in hazardous areas.

It enables operators to respond instantly, without exposing personnel to danger.

Part of the Safehouse Ex-certified ecosystem

GENGUARD® integrates with Safehouse’s full range of IECEx-certified power distribution, ventilation, and cooling systems, forming part of a complete hazardous area safety solution.

Don’t need remote shutdown capability?

If remote operation isn’t required, consider the orignal GENGUARD® Automatic Shutdown System, a proven solution that delivers automatic shutdown on gas detection without remote functionality.

It provides the same reliable ignition risk reduction and compliance benefits in a simpler, cost-effective configuration.

Ready to improve hazardous area safety?

Contact our team today to request a demo or learn how GENGUARD® TETRA can be integrated into your hazardous area safety strategy.