Marechal DXN Zone 1 & Zone 2 Hazardous Area ATEX Plugs

Marechal DXN Zone 1 & Zone 2 Hazardous Area ATEX Plugs

Marechal DXN Zone 1 & Zone 2 Hazardous Area ATEX Plugs

Marechal DXN plugs and sockets are compact and watertight with current ratings from 20A to 63A and are ATEX certified for Zone 1 & Zone 2 hazardous areas.

DXN plugs and sockets are automatically IP66/IP67 when connected and the socket outlet itself is also watertight when the lid is closed providing a waterproof power plug seal.

DXN plugs and sockets have an incorporated breaking capacity of AC-22 / AC-23 and have an impact resistant GRP casing.

  • AC-22 Switching of mixed resistive and inductive loads, including moderate overloads
  • AC-23 Switching of motor loads or other highly inductive loads

Marechal DXN ATEX Plugs – Technical Features

Specification  Marechal DXN1 Marechal DXN3 Marechal DXN6
Rated Current (ln) 20A 32A 63A
Umax 550V 750V 750V
Auxiliary Contacts (Optional) 2 2
Keying Positions (To distinguish between different power supplies & applications) 24 24 24
Protection Mode de and tb de and tb de and tb
ATEX Zones Zones 1 & 2 (Gas), Zone 21 & 22 (Dusts)
Marechal DXN Zone 1 & Zone 2 Hazardous Area ATEX Plugs

DXN Decontactors are part of the Marechal Hazardous Area Plug range.

MARECHAL DXN PLUG StandardsMarechal Plugs International Standards

Marechal DXN plugs and sockets comply with:

  • The ATEX 94/9/CE Directive (2014/35/EU from April.20.2016)
  • IEC/EN 60079-0, IEC/EN 60079-1, IEC/EN 60079-7 and IEC/EN 60079-31 international standards
  • The essential safety requirements of IEC 60309-1 & IEC 60309-4 international and European standards (plugs and socket-outlets for industrial purposes)
  • The switch utilization categories AC-22 and AC-23 described in IEC/EN 60947-3
  • The French NF C 15-100 standard
  • The European ‘Machine Directive’ 2006/42/CE regarding equipment isolation
  • The French decree dated 20 December 2011 pertaining to the wiring and operating conditions of movable electrical apparatuses
  • The decrees relating to workers’ protection in Belgium, Spain and Italy

Plugs & Sockets With Integrated Power Switch

Safe & Reliable Electrical Isolation

Marechal DXN

The decontactor is a socket-outlet with integral switching. It does not need to be interlocked with a switch. When installing the socket-outlet, ensure the switch button is positioned upwards.








Marechal DXN Plug Polarity Options

A full range of power plug options are available – contact T&D for other voltages, frequencies and contact configurations.

  • 2P
  • 3P+E
  • 1P+N+E
  • 3P+N+E
Marechal DXN Plugs & Power Distribution Systems

Marechal DXN decontactors (plug and socket outlets with integral power switch) are supported by an ancillary range of wall mounting sockets, wall boxes, socket outlets, sleeves, inlets and handles.

Marechal DXN Handles

Marechal DXN Boxes

Marechal DXN Sleeves

Marechal DXN

Contact T&D To Discuss Technical Specifications For Marechal DXN Plug-Sockets

Marechal DXN Zone 1 & Zone 2 Hazardous Area ATEX Plug - Install & Operation Guidelines

Marechal DXN Zone 1 & Zone 2 Hazardous Area ATEX Plug – Install & Operation Guidelines

Install & Operation Guidelines
  • Install the socket-outlet facing downwards, with the latch at the top (or on the side in case of risk of accumulation of foreign bodies inside the cover).
  • Panel mounting socket-outlets must be assembled on an ‘Ex e’ increased safety enclosure according to the drilling Figure F1.


Conductors preparation

  • Remove an adequate length of cable outer sheath according to the accessory used.
  • Strip conductor insulation of the indicated length. Other conductor sizes can be used with the help of wiring lugs.

Terminals are spring-assisted to prevent loosening due to strand settlement, vibration or thermal cycling. Respect recommended torques.

Self-Ejecting Version

Tension Cord

The release of the latch is performed by a tension cord. One end of this cord must be attached either to the flexible cable or to a suitable fixed point of the installation. The other end is attached to the latch release mechanism.

Latch Release Mechanism

This mechanism comes in two different types:

  • Ejecting connector: The retaining latch is directly activated by the tension cord in case of traction (see Figure E1).
  • Ejecting plug: A shark-fin mechanism is placed between the plug top and its handle. It releases the retaining latch of the socket-outlet in case of traction on the tension cord. (see Figure E2).


A plastic eyelet is supplied with the handles of Marechal DXN self-ejecting Decontactor. This eyelet allows an optimal pulling angle of the tension cord on the latch release mechanism.


The end of the tension cord that must be attached either to the flexible cable or to a suitable fixed point of the installation is equipped with a loop. A crimping ferrule is supplied to loop the other end of the cord, once it has been passed through the handle eyelet, the latch release mechanism, and cut to the adequate length (see Figure E3).

Cable Tie

A cable tie is supplied, to attach the loop of the tension cord onto the flexible cable.

Colour-Coded Rings

Insert the colour-coded rings between the inlet/plug top or socket-outlet and their rear accessory. The two protrusions of the rings must be positioned on the latch side for the socket outlet/connector and on the catch side for the plug/ appliance inlet. These rings act as seals.

On self-ejecting plugs, the colour-coded ring is replaced by a flat gasket.


  • The socket-outlet is shielded by a protective lid held in the closed position by a latch. Depress the latch to release the lid.
  • To be connected, the plug and the socket-outlet must have similar ratings (voltage, current …), and compatible contact configurations.
  • To connect, align the red marks on the housings. Insert the plug and turn clockwise until the stop. The plug is in the rest position, circuit open.
  • Push the plug fully home until latched.
  • To disconnect, depress the latch. The plug returns to its rest position.
  • Turn the plug in the opposite direction to remove it. Shut the socket-outlet lid (see Figure 2).

Self-Ejecting Version

  1. Lift the latch to release and open the lid.
  2. Align the plug/inlet catch with the socket-outlet retaining latch and push the mobile part fully home until it is held in place by the latch.
  3. To release the mobile part, pull on the tension cord. Check that the cover is properly closed.
IEC 60309 Plugs

IEC 60309 is an international standard from the International Electrotechnical Commission (IEC) for “plugs, socket-outlets and couplers for industrial purposes” and high-current power connectors.

Also certified by VERITAS LCIE, UL, AS, VDE, TR CU (GOST) and cCSAus (French, American, Australian, German, Russian and Canadian inspection laboratories) and by BUREAU VERITAS MARINE.

Hazardous Area Plugs Sockets

Visit Hazardous Area Plugs for Zone 1 & Zone 2 ATEX certified plugs and sockets for potentially explosive atmospheres.

Data Sheets