Zone 1 & Zone 2 LED Light Fittings
When it comes to ensuring plant safety, enhancing worker comfort, and managing maintenance costs, the luminaires you select today will play a crucial role for years to come. Emerson™ presents the Linmaster™ LED Series of linear luminaires, designed specifically for rugged Zone 1, 2, 21, and 22 applications.
Please Note:Â Appleton™ ATX™ Linmaster™ LED Zone 1 Series replaces the FELED Series Luminaires & Linmaster™ LED Zone 2 Series replaces the FNLED Series Luminaires
Certified for IECEx and ATEX installations, the Linmaster™ luminaires offer a hazardous area led lighting performance that matches or surpasses that of our established FE and FN Series fluorescent luminaires, as well as the FELED and FNLED linear non-metallic luminaires. These products have long been regarded as the industry standard.
With the Linmaster™ Series, you can leverage the same footprint and mounting hardware as the FE and FN Series, providing a seamless and efficient retrofit for any existing fluorescent installations. The range of lumen outputs available ensures that you’ll find the right fit for your specific task or general-purpose application, regardless of mounting height.
For unparalleled corrosion resistance, durability, and performance, trust in the Emerson brand. Choose Appleton™ Linmaster™ Series luminaires—your reliable partner in illuminating your workspace.
➡ Read More:Â Â Fluorescent Lamp Ban | Plan For A Brighter Future
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Linmaster™ Luminaires make it easy to replace existing fluorescent fixtures because they feature the same mounting dimensions and mounting accessories as original FE and FN fluorescent luminaires. Hazardous Area LED Lighting is available in light output from 2,500 to 7,000 lumens. In the rare event maintenance is needed, the cover can be quickly removed to access the internal components, while the specially designed hinged cover speeds up the process of replacing drivers, or other components.
The Linmaster™ Series includes models that provide illuminance and lighting distribution comparable to our FE Series fluorescent luminaires, with additional models that offer even more application possibilities. Choose the diffused cover option for the greatest uniformity, least amount of glare, best vertical illumination and safest photobiological rating.
The lighting simulation below compares three luminaires, each mounted at 4.5 m (15 ft) in a room with the dimensions 10m (32.8 ft) x 10m (32.8 ft) x 4.5m (15 ft).The photometric simulated colour rendered images below demonstrate the seamless transition with either luminaire.
Lighting Simulation | Hazardous Area LED Lighting v Fluorescent
The Linmaster™ Zone 1 Series Luminaires saves energy while maintaining equivalent required illuminance levels and uniformity to the FE Series Fluorescent Luminaires.
| Series Lumen Output | LELED3 | LELED4 | LELED5 | LELED6 | LELED7 |
| Input Power (W, @230 V) | 26 | 30 | 42 | 51 | 57 |
| Equivalencies (W, Fluorescent) | 3x18W | 2x36W | 3x36W | 2x58W | 3x58W |
| Nominal Lumens1 | 3219 | 3710 | 5398 | 6097 | 6971 |
| Efficacy (up to, lm/W)1 | 124 | 124 | 129 | 120 | 122 |
| Colour Temperature (CCT) (K) | 5000 / 4000 / 3000 / 2200 | ||||
| Colour Rendering Index (CRI) | ≥80 CRI | ||||
| Voltage | 100-277 Vac, 50/60 Hz; 125-300 Vdc; 24-48 Vdc as an option | ||||
| Surge Protection | 6 kV Standard | 4 kV Emergency | ||||
| L70 Lifetime (hrs, reported) | > 102,000 hours at +25 °C (+77 °F) | ||||
| Ambient Temperature2 | -40 °C to +60 °C or +65 °C (-40 °F to +140 °F or +149 °F) | ||||
| Temperature Code2 | T4, T5, or T6 | ||||
| Fixture Weight – kg (lbs) | 5 (11) | 5 (11) | 7.6 (16.7) | 7.6 (16.7) | 7.6 (16.7) |
| Replaceable Parts | Drivers, Replacement Covers, Battery Pack, and Fuse Assembly | ||||
• Certification Type: LELED
— Gas: Zones 1 and 2
– Conforming to ATEX 2014/34/EU: II 2 G
– Type of Protection: Ex eb mb IIC Gb
– Temperature Class: T4
— Dust: Zones 21 and 22
– Conforming to ATEX 2014/34/EU: II 2 D
– Type of Protection: Ex tb IIIC Db
—Standard Luminaire Ambient Temperature:
-40 °C up to +65 °C (-40 °F up to +149 °F), refer to temperature codes table.
—Emergency Luminaire Ambient Temperature:
-20 °C up to +60 °C (-4 °F up to +140 °F)
—ATEX Certificate: INERIS 24ATEX0001X
—IECEx Certificate: IIECEx INE 24.0001X)
• Standard and Emergency:
—Index of Protection according EN/IEC 60529: IP66 / 67 / 68.
—Impact Resistance (shock): IK10
—Photobiological Safety, IEC 62778 and IEC 62471: RG0
Thorne & Derrick International service UK and international projects with a complete range of Explosion Proof Lighting & Electrical Equipment including Ex d Flameproof and Ex e Explosion Proof products.
MARECHAL P66
MARECHAL® P66 plug and socket outlets are heavy duty with current ratings of 660A and are the latest technological development in their industrial plug and socket range.
P66 plug and socket outlets are automatically IP66/IP67 when connected and are suitable for use in quarries, tunnel boring machines, port cranes, mining equipment and all ship to shore applications.
The P66 Complies with the following regulations and standards(a): European Low Voltage and RoHS Directives (CE marking), European REACH Regulation. High-voltage, harsh conditions, mobility features and international safety expectations, P66 stands for robustness, cutting edge technology, sustainability and extreme reliability.
Thorne & Derrick International, based in the UK, are the Preferred UK Distributor for Marechal Plugs, Sockets & Decontactors including Single Pole Connectors for LV Electrical Power Distribution in hazardous area and industrial applications.
Using P66 to electrify your industry means committing to decarbonisation for a cleaner and safer future, while remaining competitive and efficient. To drive the electricity transition, accelerate grid modernisation and expansion, and integrate renewables, our innovation goes beyond connections.
The P66 handles are used to suit different cable diameters, allowing all kinds of configurations. Light, high tech and easy to wire, P66 ensures safety while providing optimum mobility.
The P66 is vibration and corrosion-resistant and waterproof, making the P66 manufactured to live up to the industry’s highest requirements. With it being robust, it ensures longevity and easy and low maintenance thanks to the availability of its original spare parts.
Straight or angled, the P66 handles are made to suit different cable diameters, allowing all kinds of configurations. Light, high tech and easy to wire, P66 ensures safety while providing optimum mobility.
The industry comes with extreme needs that P66 connector is built to address. Vibration and corrosion-resistant, waterproof, P66 is made to live up to the industry highest requirements.
P66 connector robustness ensures longevity, easy and low maintenance thanks to the availability of original spare parts.
Marechal high current plugs & sockets offer an extensive and comprehensive product range for all industrial electrical power applications with power currents varying from 75A to 700A with 1,100 volt power supply and are available from stock from Thorne & Derrick.
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
Introducing the Next Generation of Self-Regulating Heating Cables for use in explosive atmospheres, the NEW ELSR-H+& ELSR-SH+ cables.
These innovative self-regulating cables, manufactured by Eltherm, are designed for industrial applications that demand robust performance in high-temperature environments. Their cutting-edge technology ensures reliable heat distribution while maintaining safety in potentially explosive atmospheres.
Ensure your operations run smoothly and securely, even in the most challenging conditions. Upgrade to the next generation of heating solutions today!
➡ Contact Thorne & Derrick sales team for the complete range of heat tracing cables
The advanced feature of these heat trace cables are:
Eltherm ELSR-H+ is a self-regulating heat tracing cable provides process temperature maintenance and frost protection to pipework, instrument lines, tanks and drums up to 210° Celsius – with IECEx and ATEX Certification Eltherm ELSR-H+ heat tracing cables are suitable for Zone 1 and Zone 2 hazardous areas.
Eltherm ELSR-H+ Heater Cable wattages per metre at -60°C – 15, 30, 45, 60, 75 watts.
Trace Heater Classification:
Eltherm ELSR-H+ self-regulating heater cables has a BOT cable design which has a high chemical resistance and is able to withstand aggressive chemicals, oil and fuel for improved service life due to the protective braid and fluoropolymer outer jacket.
The Eltherm ELSR-SH+ high temperature self-regulating heat tracing cables is designed for temperature maintenance in industrial processes – and is suitable for use up to 250 °C . The high chemical resistance allows the cables to be installed in environments with exposure to aggressive influences.
The self-regulating heat tracing cable provides frost protection and temperature maintenance to pipework, silos vessels ,tanks, valves and pumps. Suitable for use in the following industries:
Eltherm ELSR-SH+ self-regulating heater cables has a BOT cable design which has a high chemical resistance and is able to withstand aggressive chemicals, oil and fuel for improved service life due to the protective braid and fluoropolymer outer jacket.
Our Team of Trained Sales Engineers are available to advise and support your heat tracing enquiries – this includes design and supply of complex multi-kilometre, major-project systems to custom heat trace cable kits for the protection of winterisation against plant and factory facilities.
See the full range of ELSR-H+ & ELSR-SH+ heat tracing cables below:
| ELSR-H+ Part Number | Heat Tracing Cable Item Number |
| 15W / ELSR-H+-15-2-BOT | B0300153 |
| 30W / ELSR-H+-30-2-BOT | B0300303 |
| 45 W / ELSR-H+-45-2-BOT | B0300453 |
| 60 W / ELSR-H+-60-2-BOT | B0300603 |
| 75 W / ELSR-H+-75-2-BOT | B0300753 |
| ELSR SH+ Part Number | Heat Tracing Cable Item Number |
| 16 W / ELSR-SH+-15-1-BOT | B0310151 |
| 33 W / ELSR-SH+-30-1-BOT | B0310301 |
| 66 W / ELSR-SH+-60-1-BOT | B0310601 |
| ELSR SH+ Part Number 230 VACÂ | Heat Tracing Cable Item Number |
| 16 W / ELSR-SH+-15-2-BOT | B0310153 |
| 33 W / ELSR-SH+-30-2-BOT | B0310303 |
| 66 W / ELSR-SH+-60-2-BOT | B0310603 |
| 98 W / ELSR-SH+-90-2-BOT | B0310903 |
The new heating cables ELSR-H+ and ELSR-SH+ offer the following benefits:
1. Longevity
ELSR-H+ and ELSR-SH+ impress with their low ageing in the standardised cycle test in accordance with DIN EN 60079-30-1. Compared to conventional heating cables, which pass the cycle test in accordance with DIN EN 60079-30-1 but show a reduction in performance due to temperature ageing, these new cables show negligible performance losses throughout the test and beyond. This means that precise power output is guaranteed even after the duration of the cycle test.
2. Sustainability
Sustainability is a core priority for Eltherm and was an integral part of the development of the self regulating heating cables ELSR-H+ and ELSR-SH+. By recycling process residues, Eltherm have achieved significant savings in fluoropolymers during production. Consequently, Eltherm and Thorne & Derrick are able to reuse up to 10% of the heating cable matrix material in the manufacturing process.
3. Saving weight
The implementation of new manufacturing processes has led to a significant reduction in the cable drum weight. This results in a weight saving up to 15% which reduces the transport weight and improves handling on a construction site.
4. Optimised energy consumption
The precision of the manufacturing processes ensure the exact production of the specified power levels, allowing for precise dosing of the required heating power.
Thorne & Derrick provide a complete portfolio of Electric Process & Heat Tracing Solutions for Industrial, Hazardous Area & Explosive Atmospheres,
StuvEx are an international manufacturer of a complete range of Static Earthing, Grounding & Bonding Solutions with ATEX & IECEx Certification for use in hazardous areas; this includes static bonding, grounding and earthing clamps, cables and reels for the safe control of electrostatic hazards and risks in Zone 1 / Zone 2 (Flammable Gas) and Zone 21 / Zone 22 (Combustible Dust) locations.
Thorne & Derrick visited StuvEx this week to get involved in technical product training in Belgium.
Anyone who drives a car is familiar with the phenomenon of an electric shock when touching the metal of the car when getting in. Or the crackling sound when taking off a fleece sweater.
These phenomena are called “electrostatic discharges”. These are clearly felt and audible and at first sight, seem harmless. But are they always?
A discharge can only occur after an object or surface has been charged. This (triboelectric) charging can only take place in the event of intensive contact between two substances.
A discharge of a few joules is a big blow and can be dangerous for people. Think of the operator, who is often the first to come into contact with a tanker. Earthing can therefore be seen as personal protection.
Electrons on the contact surface always have a preference for one of the two substances. If one of them is poorly conductive, it is possible to fix this difference in charge, originating from the transfer of electrons between the two substances when in contact.
Due to the presence of the poorly conductive material, the electrons cannot quickly return to their original location. After separating the substances sufficiently quickly, two charged “objects” remain.
During the loading or unloading of a tanker with poorly conductive liquids or powders, the same phenomenon takes place. The product particles come into contact with the wall of the transport pipe and come loose again. The contact with the wall thus creates the static charge. Electrons are exchanged but cannot be returned.
The tanker is therefore filled with charged particles, as it were, and it will therefore also charge itself. Also, by driving, the truck can be charged by the contact of the rubber with the road surface and thus arrive charged at the loading or unloading point.
A charged and conductive object can thus give rise to an electrostatic discharge, or spark discharge. The larger the object, the greater its capacity and the more charge it can hold. A truck discharge can have an energy content ranging from 100 ml to a few joules. The ignition energy of flammable liquids and powders is the MIE of some common products:
| PRODUCT | MIE (mJ) |
| H2 | 0.019 |
| OAT FLOUR | 10 – 100 |
| MILK POWDER | 30 |
| SUGAR – DUST | 5 – 10 |
| METHANOL | 0.14 |
Earthing an object simply means establishing a conductive connection between a possible charge carrier and the earth.
The connection will ensure that any charge flows directly to the earth. This prevents the charging of an object, so that any discharges will not occur.
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| ATEX Cable Reel – StuvEx Safe-Ground CR165 | ATEX Stainless Steel Earthing Clamp – StuvEx Safe-Ground CMS1 | ATEX Spiral Earthing & Grounding Cables – StuvEx Safe-Ground SP1 |
When the operator approaches the tanker truck with a flexible hose, a possible discharge may also occur there. Hoses and flexibles are often dedicated, i.e., product-specific, and are therefore not always cleaned. The risk of an explosive atmosphere due to remnants of flammable liquid in these hoses is certainly realistic.
In the best-case scenario, this will lead to a flame from the flexible or hose; in the worst-case scenario, it is already connected to the installation, and the explosion may propagate to the installation.
During the top filling of a bulk truck, an explosive dust-air mixture is to be expected in the bulk truck. The filling arm is often hung loose in the manhole or covered with a non-conductive plastic cover to limit dust emissions.
When the truck reaches a certain level of charging, it can discharge to, for example, the metal of the filling arm, where the explosive dust-air mixture is present, resulting in an explosion. Explosive dust-air mixtures will also occur at various times during pneumatic unloading.
In short, when working with explosion-sensitive products, an explosive atmosphere cannot always be ruled out with sufficient certainty during loading and unloading, as the above examples demonstrate.
The exclusion of ignition sources is therefore an important preventive measure. Earthing the tanker is considered good practice and should therefore always be done when working with products that pose a gas or dust explosion hazard.
In the case of a mobile installation such as a tanker, bulk truck, or railcar, no permanent earthing can be used; before loading or unloading, the installation must first be earthed via an earthing clamp. However, such earthing is prone to errors, is therefore easily forgotten and can be applied incorrectly.
In the first place, think of attaching it to the wheel clamp or a non-conductive part of the tanker. But also, if the tanker has just been repainted, and paint has been used a bit too lavishly on the earthing point, the earth connection will not have been established. In the event of a wire break in the earthing line, this will often go unnoticed for a long time.
An earthing control system permanently monitors the correct earth connection, is easy to use, and excludes human error during installation. In addition, it also has a release signal to which certain interlocks can be linked, such as the possibility to start the product pump.
ISMA | Explosion Safety Consultancy
ISMA specialises in explosion safety, mainly of gas and dust, and static electricity and are the consultancy arm of StuvEx who designs, implements and engineers industrial fire and explosion protection systems.
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Specialist Distributors of Electrical Heating, Lighting, Power & Process Instrumentation Equipment with ATEX IECEx Certification and DSEAR Regulatory Compliance to deliver significant safety and reliability improvements in the Industrial, Explosive Atmosphere & Energy sectors. Based in the UK, we are highly customer responsive and absolutely committed to providing a world-class service.
Since 1985, we have provided expert technical support and express delivery from extensive UK stocks to world-wide destinations.
Thorne & Derrick | Approved Supplier of Static Earthing, Grounding & Bonding Systems | ATEX Certified Products & SolutionsÂ
Pictured L To R Front – Karen Van Aelst Product Manager at StuvEx | Dylan White Technical Sales Engineer at T&D | Terry McDonald Sales & BDM at T&D | Laura Mccabe Technical Sales Engineer at T&D | Chris Carpentier Production & Supply Chain Manager at StuvEx | Sam Ayres Sales Engineer at StuvEx
Back – Emilien Griffon Sales Engineer at StuvEx | Arto Van Bauwel Service Manager at StuvEx | Kevin De Lauw Product Developer at StuvEx | Peter Van Perre Team Supervisor at StuvEx | Karl Debilde Sales Engineer at StuvEx | Lee Dance Service Engineer at StuvEx
15th April 2024Â
Thorne & Derrick | Approved UK Partner and Distributor for StuvEx InternationalÂ
We would like to thank the team at StuvEx for hosting Thorne & Derrick at their headquarters in Belgium, Germany. This visit expanded our knowledge with the hands on technical training used in Static Earthing, Grounding & Bonding Systems.
Risk of Static Electricity in Explosive Atmospheres – Combustible dust can pose serious risks in several industries. It is crucial to implement measures to mitigate the risk of explosions. Thorne & Derrick witnessed firsthand, in a live controlled environment, the dangers that static electricity imposes in explosive atmospheres.
Preventing a Uncontrolled Electrostatic Discharge – Uncontrolled electrostatic discharges can be prevented by the installation of earthing and bonding systems – as a potential ignition source the safe and reliable control of static electricity is important in the safe operation of industry processes and manufacturing applications with potentially explosive atmospheres.
Thorne & Derrick visited StuvEx this week to get involved in technical product training in Belgium.
StuvEx is an international market leader in the manufacture of fire & explosion protection systems to protect people and plants against gas or dust explosions.
The video below demonstrates the result of an explosion caused by static electricity. The fuel for this explosion, you ask? 1 teaspoon of sugar! Knowledge of the risks associated with dust atmospheres is poor in comparison to gas atmospheres.
“Static electricity is often dangerously overlooked and misunderstood as a potential ignition source in gas/dust hazardous areas – it does much more than make your hair stand on end, electrostatic explosions and fires are fatal to life.”
Thorne & Derrick support the technical specification and competitive supply from stock of standard and customised static earthing solutions for the explosion protection of process operations and manufacturing applications when bulk handling combustible or flammable gases, liquids or powders.
Thank You for the warmest of welcomes to the excellent team at StuvEx for inviting us to Belgium for 2 days.
Thorne & Derrick | Approved Supplier of Static Earthing, Grounding & Bonding Systems | ATEX Certified Products & SolutionsÂ
Should you require any customer support or service to enable the selection or specification of the correct Static Earthing Systems for use in explosive atmosphere locations in the hazardous area industries please do not hesitate to contact us.
StuvEx are an international manufacturer of a complete range of Static Earthing, Grounding & Bonding Solutions with ATEX & IECEx Certification for use in hazardous areas; this includes static bonding, grounding and earthing clamps, cables and reels for the safe control of electrostatic hazards and risks in Zone 1 / Zone 2 (Flammable Gas) and Zone 21 / Zone 22 (Combustible Dust) locations.
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| Static Grounding System For Tank Trucks – StuvEx Safe-Ground TES01-V2 | Multipoint Earthing Control System – StuvEx Safe-Ground MGS01 | Earthing & Bonding Systems Test Device – StuvEx Safe-Ground ReConn01 |
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| ATEX Stainless Steel Earthing Clamp – StuvEx Safe-Ground CMS1 | ATEX Cable Reel –Â StuvEx Safe-Ground CR1/65 | ATEX Spiral Earthing & Grounding Cables – StuvEx Safe-Ground SP1 |
Specialist Distributors of Electrical Heating, Lighting, Power & Process Instrumentation Equipment with ATEX IECEx Certification and DSEAR Regulatory Compliance to deliver significant safety and reliability improvements in the Industrial, Explosive Atmosphere & Energy sectors. Based in the UK, we are highly customer responsive and absolutely committed to providing a world-class service.
Since 1985, we have provided expert technical support and express delivery from extensive UK stocks to world-wide destinations.
Published 13 Mar 2020
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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...
