Industrial | Hazardous Area | Explosive Atmospheres | Plugs & Sockets
Thorne & Derrick International, based in the UK, are Experts in Equipment for Explosive Atmospheres & ATEX Product Innovation – we supply and distribute the MARECHAL ELECTRIC range of low voltage power, control and signal plugs and sockets for heavy industrial and hazardous area applications where ATEX IECEx Certified products are required.
➡️ Thorne & Derrick have been appointed as official distributors and stockists of Marechal plugs and sockets in the UK, as of the 1st March 2023. Our demonstrated knowledge and expertise in the industry enables us to deliver the complete MARECHAL ELECTRIC product offering in both Industrial and Hazardous Areas.
In this series of application Blogs we review the use of Decontactors in Tunnels.
MARECHAL ELECTRICÂ is now a market leader in the field of electrical connections for tunnels.
Thanks to unique technology and materials specifically developed to suit these harsh environments and to offer quick disconnection of electrical installations, Marechal equipment complies with the industry current standards and is certified by the quality accreditation bodies, thus guaranteeing optimum safety.
MARECHAL ELECTRICÂ is constantly innovating in order to meet the needs of the various operators and facilitate maintenance work.
MARECHAL ELECTRIC is now a leading company in the electric connection for tunnels.
Based on technology specially intended for such difficult environments and quick light disconnection, Marechal Electric has already equipped more than 700 km of underground roads, railroads and inland waterways.
Always with the same objective: provide user safety, optimise maintenance and make the work of emergency services easier.
Reliability & Conformity of Installations
Supply circuits for emergency lighting installed in tunnels must meet the following requirements:
To meet these requirements, MARECHAL® equipment is among the only one on the market to 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
In order to guarantee maximum safety, the materials used in the making of MARECHAL®’s boxes and connectors are corrosion resistant and shockproof (IK09).
In the event of a fire, these materials do not produce any halogen gases or smoke. They are resistant to aggressive environments (humidity, corrosion, pollution) in industrial sectors and road infrastructures.
Optimised Maintenance & Washing
All MARECHAL boxes and connectors are watertight and withstand the use of high-pressure washing during tunnel maintenance.
Ease of Intervention for Emergency Services
The MARECHAL boxes have been specially developed in collaboration with emergency services who specialise in tunnel rescue.
EXPRESS® BOX and EXPRESS® FIRE BOX
Supply of standard and emergency lighting.
F400 Electrical Socket-outlets
Suitable for industries and environments where the ambient temperature is high, such as tunnels. The F400 electrical connectors provide excellent electrical continuity. Very robust, they provide the power to smoke accelerators simplifying maintenance while resisting the conditions of standard NF EN 12101-3.
PNC COMPACT CONNECTOR 16 A
The PNC is a compact and rugged connector designed for all types of aggressive environments (humidity, corrosion, pollution) found in many industrial sectors including transport infrastructure. MARECHAL’s technically advanced silver-nickel butt contact system assures high level performance no matter the conditions.
Supply circuits for emergency lighting installed in tunnels must meet the following requirements:
To meet these requirements, MARECHAL® equipment is among the only on the market to have been tested and certified by:
Tunnel Application Examples
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Hindhead Tunnel, United Kingdom Supply emergency lighting and jet fan connectors • Saves time during maintenance |
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Tunnels : Bussière (1000m) , Violay (3900m) and Chalosset (700m) Supply of standard and emergency lighting. • Reliability of equipment over time |
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FORLÌ italy Tunnel Supply of standard and emergency lighting • Compact, lightweight, easy to assemble product |
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Thorne & Derrick, Experts in Equipment for Explosive Atmospheres, are Specialist Distributors of Marechal plugs & sockets in the UK including ATEX and IECEx certified decontactors for LV electrical power distribution.
The range of Marechal plugs and sockets are available in a range of current ratings, switching capabilities, voltage supply and hazardous area certifications (according to ATEX & IECEx) for safe use in potentially explosive atmospheres – this includes Zone 1 & Zone 2 (Gas) and Zone 21 & Zone 22 (Dusts).
Panels | Plugs | Isolators | Enclosures | Lighting | Control Stations | Motor Starters | Heat Trace | Gas Detection | Flame Detection | Process Instrumentation | Process Heating | Fans | Security Locking & Access ControlÂ
Hazardous Area Heating
ATEX IBC Heater refers to a heating device that is specifically designed and built to be used in an environment where there is a potential risk of explosion. ATEX stands for “Atmosphères Explosibles” which is a set of regulations and standards implemented within the European Union to ensure the safety of equipment used in potentially explosive atmospheres.
An IBC (Intermediate Bulk Container) is a large container used for storing and transporting liquids or granulated substances. It typically has a capacity of 1,000 litres (275 gallons).
The ATEX IBC heater is designed to provide controlled heating to the contents of an IBC, ensuring that the substance inside is maintained at the desired temperature. These heaters are constructed with materials and components that are explosion-proof and in compliance with ATEX regulations.
ATEX IBC heaters are commonly used in industries such as chemicals, pharmaceuticals, and oil & gas, where there is a need to heat potentially hazardous substances stored in IBCs. These heaters help prevent the risk of explosion by providing safe and efficient heating solutions in accordance with ATEX standards.
The design of ATEX IBC heaters includes several safety features to minimise the risk of ignition and explosion. These may include features like sealed electrical enclosures, flameproof designs, and temperature control systems.
Thorne & Derrick can provide a selection of standard IBC heaters suitable for a variety of requirements. Our heating jacket technology can be adapted to suit non-standard containers and bespoke applications – suitable for both harsh industrial and hazardous areas.
One of the key requirements for ATEX IBC heaters is that they must be certified as suitable for use in hazardous environments. This certification ensures that the heater has undergone rigorous testing and meets the necessary safety standards for use in explosive atmospheres. The certification process involves assessing the design, construction, and performance of the heater to ensure it can operate safely in these environments.
They must also be designed with features that prevent the ignition of flammable substances. This includes the use of non-sparking materials, such as stainless steel, for the construction of the heater. The electrical components of the heater must also be intrinsically safe, meaning they are incapable of producing sparks or generating enough heat to ignite flammable substances. These may include features like sealed electrical enclosures, flameproof designs, and temperature control systems.
ATEX IBC heaters are available in various forms, including immersion heaters, drum heaters, and jacketed heaters. They may use different heating technologies such as electric heating elements, steam, or hot water depending on the specific application.
ATEX Drum, IBC & Gas Bottle Cylinders By Winkler
In summary, ATEX IBC heaters are specialised heating devices designed for use in potentially explosive environments. They provide controlled heating to the contents of IBCs while ensuring compliance with ATEX regulations to maintain safety. These heaters are commonly used in industries with hazardous substances to prevent the risk of explosion and maintain optimal temperature conditions.
Winter stocks arriving at Thorne & Derrick’s Bristol Office | We hold the largest UK stocks of frost protection & winterisation equipment
⚠️ Safety and compliance should always come first but unfortunately there are companies that make cost and profit their priority. ⚠️
Thorne & Derrick are excited to announce our brand new WEBINAR, to be delivered by Terry McDonald on the 7th June 2023.
It is estimated that between 300,000 and 3 Million fake ATEX certified products are being used in the explosive atmosphere industry. This webinar will help raise awareness of the problem, and provide real examples of fake products and fraudulent certificates. We will offer recommendations on how the industry can all make a contribution to combat this problem and improve safety.
Fake certificates and products is a growing problem. The question of a serious accident is not IF but WHEN!
Terry McDonald delivering the presentation at HazardEx 2023
Who Should Attend? Any person involved in the design, purchase, installation, maintenance, inspection, testing and commissioning of equipment designed for use in explosive atmospheres.
Why Attend? Improve your knowledge and understanding. Increase awareness and create change to improve safety & compliance. A piece of fake equipment could cause the spark that kills you or your colleagues.
DATE: Wednesday 7th June 2023
TIME: 09.30 AM – 10.30 AM BST
âž¡ Sign Up Here
About The Presenter:
Terry McDonald has over 18 years’ industry experience, and has spent many years working with Tier 1 and 2 COMAH sites in the UK as well as clients around the world. He is a passionate supporter of innovation, sharing best practice & knowledge with the aim of improving safety & compliance within the industry.
Thorne & Derrick are leaders in the development and distribution of Product 
Innovations that deliver significant improvements to clients plant, people and operational safety in the explosive atmosphere industries.
Your proactive problem solvers experienced in succession planning for the replacement of obsolete, non-conformant and legacy equipment in hazardous areas.
Your first-choice provider of innovative and competitive solutions to ensure ATEX & IECEx Compliance for Hazardous Area Electrical, HVAC & Process Instrumentation Equipment to your UK and international projects.
Over the last 3 years, Thorne & Derrick have introduced several products which have led to improved efficiency, reliability and productivity in the hazardous area and process industries.
Marechal Plugs & Sockets for the Food & Beverage Industry
How Marechal Robust Socket Outlets Help to Maintain Safety and Hygiene in the Food & Beverage Industry
Thorne & Derrick have been appointed as official distributors and stockists of Marechal plugs and sockets in the UK, as of the 1st March 2023. Our demonstrated knowledge and expertise in the industry enables us to deliver the complete Marechal product offering in both Industrial and Hazardous Areas.
MARECHAL ELECTRIC, have been providing industrial electrical equipment since 1952 and help manufacturing companies plug in mission-critical process and plant equipment safely. Inside every MARECHAL® socket-outlet and panel you will find several innovations that ensure a high-performance electrical connection that continues to deliver like-new results over time.
F&B industry faces significant challenges to maintain safety and hygiene.
To ensure products are not contaminated, manufacturers have to get it right at every production stage. This means permanent resistance of the equipment to pressure washing, high-temperatures, and cleaning products that contain caustic chemicals.
For facility and production managers, harsh environments can mean that keeping equipment up and running is a challenge. It is essential to make sure electrical connections do not provoke arc flashes, electrical fire hazards or trigger issues that could cause injuries or costly production interruption.
The range of Marechal connectors provide reliable machine and process performance over time in all conditions. With materials carefully selected when manufacturing, socket-outlets feature innovative silver-nickel tips for increased durability and robustness:
Weather and impact resistance, even outdoors
Outdoor activities like wine growing and grain farming are notoriously hard on machinery. From bad weather to shocks during lifting and handling, equipment routinely takes a beating.
MARECHAL products are protected from corrosion and impacts by a glass-fiber reinforced PBT (polybutylene terephthalate) housing that offers IK10 impact protection. Our butt contacts with silver-nickel tips and metal braiding deliver excellent electrical performance and ensure that our products can be plugged and unplugged thousands of times and keep on working.
A guaranteed safe, watertight connection, even during high-pressure cleaning.
Most food and beverage manufacturers have to comply with strict safety and hygiene standards. Tanks and other equipment are often cleaned with pressure washers, very hot water, and foam detergents daily.
MARECHAL® socket-outlets have a standard protection rating of IP66, IP67, or IP69, to secure the environment, prevent electrical hazards, and minimize circuit breaker nuisance tripping.
Make changes in your processes, even unplanned.
Custom and on-demand production can involve mobile equipment for rapid reconfiguration of production lines for runs of different sizes.
The DECONTACTOR™ has an integrated switch that dramatically increases flexibility. It can be connected and disconnected safely by operators without electrical authorisations, even for currents up to 250 A.
Key Takeaways
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Voltage: up to 1,000 V |  |
Including industrial and explosive environments |
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Current: 5 A to 1250 A |  |
IK10 impact protection rating |
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Rated IP66, IP67, or IP69 |  |
Operating temperature -40 °C to 60 °C |
In stock and available with fast delivery. Contact Thorne & Derrick for order information.
The DECONTACTOR™, built on a proprietary MARECHAL ELECTRIC technology, has an integrated switch. The cut off button safely and easily stops the power supply to live electrical loads – the machine can then be unplugged with no risk of an electric arc. In addition to delivering unparalleled robustness over time, our socket-outlets also:
Decontactor Benefits
The only socket-outlet with built-in switch up to 250 A (110 kW).
ALL OF THE BENEFITS OF MARECHAL® TECHNOLOGY + ANTIBACTERIAL PROTECTION!
The World Health Organisation confirms that it is becoming harder and harder to treat bacterial infections. Regardless of the environment or industry, bacteria are everywhere to be found. The risk of contamination or infection from surface transfer is significant. A single bacterial outbreak in an industrial plant or processing facility can be devastating.
Continuing our drive for innovation, MARECHAL ELECTRIC have recently launched an anti-bacterial range to deliver best-in-class technology with the advantage of increased health protection to end users. Increased protection against bacterial infections has been achieved by infusing an active silver ion additive into Marechal poly handles, which provides a protective barrier inhibiting the growth of bacteria.
New poly handles option now available on the following ranges: DSN1 20 A – DSN3 32 A – DSN6 63 A – DS1 30 A – DS3 50 A – PN 30 A – EVO 40 A and MULTICONTACT ranges.
Reducing the risk of bacterial transfer and potential infection is relevant across all industries and not only limited to the obvious food & beverage, pharmaceutical and hospital sectors. The inorganic nature, small particle size and high temperature tolerance of the antimicrobial additive also makes it ideal for use in many different application areas.
âž¡ Read The Full Article | Marechal Antibacterial Plugs & Sockets
Thorne & Derrick, Experts in Equipment for Explosive Atmospheres, are Specialist Distributors of Marechal plugs & sockets in the UK including ATEX and IECEx certified decontactors for LV electrical power distribution.
The range of Marechal plugs and sockets are available in a range of current ratings, switching capabilities, voltage supply and hazardous area certifications (according to ATEX & IECEx) for safe use in potentially explosive atmospheres – this includes Zone 1 & Zone 2 (Gas) and Zone 21 & Zone 22 (Dusts).
Panels | Plugs | Isolators | Enclosures | Lighting | Control Stations | Motor Starters | Heat Trace | Gas Detection | Flame Detection | Process Instrumentation | Process Heating | Fans | Security Locking & Access ControlÂ
Available in 110V/230V, cable reels extend the power supply in hazardous areas
Used together with their Hazardous Area range of temporary lighting and their other ATEX temporary power distribution products, Wolf ATEX cable reels help provide flexible hazardous area lighting solutions.
➡️ Contact Thorne & Derrick for the competitive supply of the complete range of Wolf Safety Lamp portable & temporary lighting products including handlamps, torches, warning lights, tank lighting and floodlights.
Fully compatible with the Wolf range of cabled Temporary lighting Power Distribution products – transformers, splitter boxes and extension cables – Wolf ATEX cable reels are a fundamental part of our hazardous area lighting solution range, helping to supply a choice of effective and efficient solutions to any hazardous area maintenance project requirement.
Using various configurations of the Wolf LinkEx™ LED Temporary Luminaire, Wolf LinkEx™ LED Floodlite and other cable powered products from the ATEX temporary lighting range, the cable reel enables a bespoke set up of task and ambient lighting.
Wolf LinkEx™ LED Temporary Luminaire ATEX
Tough and reliable, Wolf cable reels are specifically designed and manufactured for rugged use in harsh and extreme hazardous area environments, including the petrochemical, oil and gas industries as well as many other industrial sectors.
The reels are easy to maintain and resistant to oils, acids, chemicals and are UV and weather resistant. Specifically designed and manufactured for rugged use in harsh and extreme hazardous area environments, including the petrochemical, oil and gas industries as well as many other industrial sectors.
Wolf LinkEx™ LED Floodlite
CE marked to the 2014/34/EU ATEX equipment directive for safe use in Zone 1 (Cat 2) IIC, where a T6 temperature class permits, they are easy to move and are essential in keeping work areas safe and tidy and reducing tripping hazards to a minimum.
Suitable for 110V or 230V applications, Wolf ATEX Cable Reels are fitted with ATX plugs and sockets or CEAG plugs and sockets (alternative voltages, plugs and sockets are available on request) with 30 metre H07RN-F yellow cable.
Wolf Safety Lamp Hazardous Area Lighting
➡️ T&D are Main Distributors for Wolf Hazardous Area Lighting – this includes the complete range of hazardous area Wolf Temporary Lighting forming part of their portable and temporary lighting range. The handlamps are certified according to ATEX for safe use in hazardous areas Zone 1 & Zone 2 (Gas) and Zone 21 & Zone 22 (Dust).
Published 13 Mar 2020
Press Release Date: 02.04.2020 uploaded by Chris Dodds (T&D Sales + Marketing Manager) World’s First Fully Certified ATEX Doors Thorne & Derrick International, the Experts in Equipment for Explosive Atmospheres, today announce the signing of a Commercial Distribution Agreement...
Published 04 Jul 2019
Press Release Date: 04.07.2019 uploaded by Chris Dodds (T&D Sales + Marketing Manager) Category: Stockist Distributor Agreement Announcement Thorne & Derrick International announce that they have signed a Preferred Distributor Agreement with Raytec, the world leading manufacturer of LED...
