Marechal Plugs, Sockets & Decontactors | Hazardous Area Zone 1 & Zone 2 ATEX IECEx

Marechal | Plugs Sockets Decontactors

Marechal | Plugs Sockets Decontactors


Plugs & Sockets


Marechal plugs and sockets (decontactors) provide low voltage power supply for high current, high temperature and hazardous area (Zone 1 & Zone 2) ATEX power distribution applications – this includes power plugs for electric generator sets, motors, machines, distribution boxes, pumps and electric cabinets.

Thorne & Derrick, Experts in Equipment for Explosive Atmospheres, are Specialist Distributors of Marechal plugs and 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).

MARECHAL Live Disconnect Plugs


Decontactor® is a plug and socket outlet system with an integrated power switch permitting absolutely safe connection and disconnection of electrical equipment with plug-and-play simplicity. The Marechal decontactor is a plug and socket with an integral load-break switch – this unique design offers various benefits :

  • contact quality
  • safe electrical disconnection
  • automatically watertight plug/socket assembly
  • cost reduction due to dual-voltage system
  • robust and reliable alternative to conventional plugs and sockets

Marechal Decontactors can be safely disconnected under full load for planned maintenance or rapid change out of equipment during plant shutdowns. The decontactor from Marechal is supplied with an integral load-break switch offering technical benefits including quality contact, safe disconnection under load, watertight seal (up to IP68) and power supply reliability.

Marechal plugs and sockets are used in various industries globally including mining, oil & gas, offshore, food & drink, shipping and petrochemical as well as other areas that require a guaranteed safe electrical connection.

Load Break Release Button & Safety Shutter

Marechal plugs feature a safety button placed on the upper section of the safety socket enabling the user with a single press of the button to disconnect the equipment up to 250A – no specialist skills or training is required to install the plugs. The plugs can therefore be removed in complete safety – the power outlet installation is safe and does not represent an electrical hazard guaranteeing operating speed and time savings during installation operations or machine shutdown. As an additional feature a safety shutter protects the user according to IP4X/IPXXD – the live contacts are inaccessible behind the closed shutter.

Marechal Decontactors

Maximum Efficiency, Safety & Reliability For Your Power Supply – disconnect Marechal decontactors under full electrical load or live supply for planned maintenance or rapid change out of equipment during plant shutdowns and turnarounds in hazardous areas and explosive atmopsheres.


ATEX Certified Plugs & Sockets | Hazardous Area Zone 1 & Zone 2 (Gas) Zones 21 & 22 (Dust) Explosive Atmospheres

Marechal decontactors all quick, easy and safe electrical connections and disconnections from live power supply up to 250Amp and 75kW, this includes under short circuit conditions.

Hazardous Area Power Plugs | Decontactors (Switch+Socket Outlets) 16A to 200A | IP66 IP67 IP69 | ATEX & IECEx Certified | Marechal decontactors establish quick, easy and safe electrical connections and disconnections from live power supply in hazardous area Zones 1 (21) and Zones 2 (22).

Marechal Plugs

Industrial Power Plugs | Decontactors (Switch+Socket Outlets) 16A to 400A | IP66 IP67 IP69 | up to 400 degrees Celsius (DSHT)

Marechal Plugs & Sockets

Hazardous Area Plugs | Zone 1 (21) & Zone 2 (22)

Explosion Proof ATEX & IECEx

  • DXN Plugs – compact and watertight 20A to 63A
  • DX Plugs – metal 20A to 200A
  • PXN12C, DXN25C, DXN37C – multi-contact power connectors 12 to 30 contacts
  • SPEX – single pole power connectors up to 680A 1000V
  • MXBS – hazardous area socket boxes
  • MXBJ – hazardous area junction boxes up to 350A 750V
  • CRIC – connection terminals
  • B2X – distribution boxes up to 750V

Marechal DXN Hazardous Area Plugs & Sockets

ATEX IECEx Certified zone 1 & zone 2

Explosion Proof Plugs & Sockets for Hazardous Areas 

Marechal DXN is a range of hazardous area ATEX certified plugs and sockets suitable for use within Zone 1 & Zone 2 potentially explosive atmospheres – the DXN range of plugs and sockets are available in power current outputs of of 20A, 32A and 63A including integral watertight seal with ingress protection to IP66/67.

The robust, compact design plug is coupled with high performance poly casing provides product longevity and performance when required. In addition, the DXN range of hazardous area plugs and sockets comply with the ATEX 94/9/CE Directive and are also certified according to IECEx standards.

DXN ATEX plugs and sockets provide impact resistance and insensitivity to thermal shocks for reliable hazardous area power distribution.

  • Hazardous Area Plugs ATEX Certified: ATEX Ex II2 G D Ex de IIC Gb.
Marechal DXN Plugs

Marechal DXN Plugs

Industrial Plugs – 16Amp to 250Amp Plugs & Sockets

  • DSN Plugs – compact and watertight 20A to 63A
  • DS Plugs – industrial connectors 30A to 250A
  • DN Plugs – industrial connectors 20A to 150A
  • PNC Connectors – compact up to 16A
  • PN Connectors – compact up to 30A
  • Star Delta – 7 pole decontactor 30A to 150A
  • DB Motor Switches – disconnectable motor switch up to 45kW

➡ More info: Industrial Plugs 

Read Blog: Marechal Plugs & Sockets For Food & Beverage Industry

Marechal DSN Plugs

Marechal DSN Plugs

Signal & Control Plugs – 16Amp to 30Amp Up To 37 Contacts

  • Marechal PN7C, DN9C, PN12C, DN20C, DSN24C, DSN37C, DS37C – multi-contact connectors up to 37 contacts

➡ More info: Signal & Control Plugs 

Marechal DSN37C Plugs Connectors Sockets

Marechal DSN37C | Multi-contact Industrial Connector (24-37 contacts)

High Current Plugs

75Amp to 700Amp Power Connector Plugs & Sockets

  • PF Plugs – heavy duty plugs/sockets up to 600A 8 Aux
  • DS4 Plugs – high current plugs/sockets up to 400A 2 Aux
  • CS1000 Connectors – single pole power connections up to 400A
  • SP Connectors – single pole power connections up to 700A plus pilots
  • CS Connectors – single pole welding connections 75A-500A
  • CCH Connectors – battery charger connections 75A-200A

➡ More info: High Current Plugs

High Current Plugs & Connectors Manufactured by Marechal

Marechal PF Connectors | Up to 600Amps 1000 Volts

High Temperature Plugs – 240° to 400° Celsius Power Connectors

  • PNHT & DSHT – power connectors
  • DN7C3HT & DN7C6HT – motor connectors
  • PN7CHT – multi-contact connectors

➡ More info: High Temperature Plugs 

Marechal PNHT High Temperature Plugs








Power Distribution Boxes, Connectors, Sockets & Service Boxes

  • BM Modular Boxes
  • BG Gas Transfer Boxes
  • BD Distribution Enclosures
  • BRP Portable Service Enclosures
  • CRIC Connection Terminals

➡ More info: Power Distribution Boxes

BM Modular Boxes Marechal

Marechal BM | distribution boxes for all industrial applications and a large choice of products designed specifically for power supply in tunnels.







About Marechal 

Established over 60 years ago, Marechal Electric are today one of the worlds largest manufacturers of industrial electrical plug and socket connections. With over 300 employees and activity in over 20 countries, Marechal are a global enterprise committed to innovation with over 5% of turnover being re-invested into R&D yearly.

In 2013, Marechal Electric announced Technor, a specialist manufacturer of hazardous area products including Exd enclosures, joined the Marechal Electrical Group (MEG). Technor manufacture hazardous area lighting, enclosures and control stations for safe use in both Zone 1 and Zone 2 where increased safety and flameproof protected equipment is required.

➡ For complete information about Marechal Plugs including technical specifications, hazardous area certifications and ordering details please refer to the product section below.

Technor Hazardous Area Electrical Equipment

Technor Hazardous Area Equipment – Thorne & Derrick distribute Explosion Proof electrical enclosures, lighting, electrical panels and control stations for potentially explosive atmospheres.

The History of Marechal

Marechal is a french family business that was created in 1952 that specialises in the manufacture of low voltage electrical connectors from 5A to 700A as well as electrical solutios for potentially explosive atmospheres from the aforementioned Technor brand.

The unique selling point of Marechal’s products are that they are designed to ensure safety, durability, performance, ease of use and energy efficiency. The principles of Marechal Electric Group stands also for collaboration based on trust, proximity with partners, suppliers, customers and employees.

History of Marechal

Marechal | Hazardous Area & Explosion Proof Electrical Equipment

Marechal Boxes Enclosures ConnectorsMarechal Plugs Hazardous Area Plugs
Marechal Plugs High Current PlugsMarechal Plugs High Temperature Plugs
Marechal Plugs Industrial PlugsMarechal Plugs Signal Control Plugs


Hazardous Area Electrical Distributors

Integrity | Knowledge | Reliability | Electrical HVAC Process Instrumentation Equipment


Thorne & Derrick are leaders in the development and distribution of ATEX & IECEx 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 UK and international projects.

Panels | Plugs | Isolators | Enclosures | Lighting | Control Stations | Motor Starters | Heat Trace | Gas Detection | Flame DetectionProcess InstrumentationProcess Heating | Fans | Security Locking & Access Control

Hazardous Area Electrical Equipment

Competitive Prices | Extensive Stocks | Technical Support | Express Delivery