Marechal Plugs & Sockets For Tunnels (Road & Rail)

Published 12 Jan 2017

Fire Resistant Plugs

fire resistant PLUGS FOR Power Supply To Emergency Lighting, Jet Fans & Security Recess
  • By Chris Dodds : estimated reading time 4 minutes

Marechal offers a full range of fire resistant plugs, sockets and boxes suitable for use within confined spaces and working environments such as road and rail tunnels.

As these environments can be extremely corrosive due to heavy pollution, cleaning, road debris, smoke and heat generated in the event of a fire, it is critical that installed electrical equipment is compliant with European standards with respect to fire resistance and flame retardancy.

Marechal Plugs & Sockets For Tunnels (Road & Rail)

Marechal Plugs & Sockets For Tunnels (Road & Rail)

Fire resistant plugs, sockets & electrical boxes


  • Standard lighting
  • Emergency lighting
  • Jet fans
  • Security recess for fire brigades
Marechal Plugs & Sockets For Tunnels (Road & Rail)

Marechal F400 – Fire Resistant Plug & Socket Outlets for jet fans and smoke extractors

fire performance plug-sockets

& electrical boxes

Reliability and conformity of installations
Marechal Plugs & Sockets For Tunnels (Road & Rail)

Supply circuits for emergency lighting installed in tunnels must meet the following requirements:

  • EN 50362 European Standard, French government Directive No. 2000-63 of 25 August 2000 on safety in tunnels and national road network, NF C 32-070 French standard, Guides CETU defining the fire behaviour of road tunnels. Method of test for resistance to fire of larger unprotected power and control cables for use in emergency circuits

To meet these requirements, Marechal plugs and sockets and boxes have been tested and certified by C.S.T.B France (Centre Scientifique et Technique du Bâtiment), and IMQ laboratory in Italy.

Suited materials for the users’ safety
Marechal Plugs & Sockets For Tunnels (Road & Rail)

Marechal’s plugs and sockets and boxes are corrosion resistant and shockproof (IK09) ensuring maximum electrical safety is achieved. In the event of a fire, Marechal’s plugs and sockets do not produce any halogen gases or smoke and meet all the requirements of aggressive environments (humidity, corrosion, pollution) both in industrial sectors, hazardous areas and road infrastructures.

Optimised maintenance and washing
Marechal Plugs & Sockets For Tunnels (Road & Rail)

All electrical boxes and connectors are watertight and withstand the use of high-pressure washing during tunnel maintenance.

Ease of intervention for emergency services
Marechal Plugs & Sockets For Tunnels (Road & Rail)

The boxes have specially been developed in collaboration with emergency services specialising in tunnel rescue.

ATEX Certification For Hazardous Areas
ATEX Plugs Sockets

Marechal also manufacture plugs and sockets for explosive atmospheres in accordance with ATEX Directive 2014/34/EU and used in Zones 1 and 2 (gas) and Zone 21 and Zone 22 (dust) including the DXN ATEX plug and sockets.

Marechal References

A6B Paris, France

  • Power supply to luminaires and electrical continuity of the main cable (CR1-C1 cable).

Subway Paris – Extension Line 12, France

  • Power supply to luminaires.


Marechal Plugs & Sockets For Tunnels - Bussière, Violay & Chalosset

Marechal Plugs & Sockets For Tunnels – Bussière, Violay & Chalosset

  • Connection of standard and emergency lighting.


Marechal Plugs & Sockets For Tunnels (Road & Rail)

  • Connection of standard and emergency lighting.
  • Power supply to jet fans.

INDRA, Spain

  • Emergency lighting systems and fans to Tunnel Dos Valires, Andorra.

CALLE M30, Spain

  • Power supply to emergency lighting to M30 – A3 Tunnel


Marechal Plugs & Sockets For Tunnels (Road & Rail)

  • Power supply to emergency lighting systems and jet fan connectors.

Electrical connectors & boxes

Marechal Tunnels Boxes & Electrical Connectors

Tunnels Boxes & Electrical Connectors are part of the Marechal Power Distribution Box range

  • Express Boxes for Standard Lighting
  • Fire Resistant Express Boxes for Emergency Lighting – up to 920°C
  • Marechal F400 Wall Mounting Socket-Outlet for Jet Fans
  • Marechal PNC Connectors for Lighting Devices
Marechal Plugs Sockets - Stockist Distributor

Fire Resistant Electrical Equipment From Marechal

Thorne & Derrick Service The Rail Industry

How T&D Can Help….
 Fire resistant  isolators

T&D distribute hazardous area isolators and fire resistant isolators rated from 20A-630A with F400 Fire Rated classification designed specifically for installations where the electrical power supply must be maintained for 2 hours at 400°C.

Fire Rated Fire Resistant Isolators

Invitation – network, engage, promote

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Thorne & Derrick


Thorne & Derrick International are your single-source supplier of Electrical, Mechanical, Process & Instrumentation Equipment. T&D provide an outstanding service to UK and international customers – we are highly customer responsive and absolutely committed to providing a world-class service.

T&D supply utilities, power, renewable energy, construction, rail, manufacturing, food/beverage, mining, oil, gas and petrochemical industries – distributing 100,000+ products from 100+ manufacturers from multi-million pound stocks. Since 1985 we have established a solid reputation based on service, integrity and trust.

Further Reading