Marechal Decontactor Products

MARECHAL ELECTRIC GROUP has been a major designer of both industrial and Explosion proof plugs and sockets for over 60 years. Unique technology : the Marechal DECONTACTOR™

This unique socket technology from Marechal Electric with a patented integral switching device is suitable for use in most areas of the industry: general manufacturing and process industry, premises and set-ups for the general service industry, all infrastructures as well as the specific oil and gas industry or those premises presenting a risk of explosion, referred-to as hazardous areas. The Ex range can be used in zones 1 & 2 (Gas) and zones 21 & 22 (Dust). They are certified according to IECEx standards.This safe electrical power supply is the result of a constant desire from Marechal Electric to ensure the safety of both personnel and plant alike.



Marechal: Industrial power supply

Comprehensive coverage of all power supplies and industrial needs from 16 a to 250 a

Mounting an electrical socket-outlet with decontactor™ technology ensures the electrical safety of users and the durability of equipment. The connection of these modular plugs is simple, intuitive and doesn’t require any electrical certification.

Typical applications

  • Chemical, petrochemical
  • Pharmaceutical industry
  • Food industry
  • Ex lights networks, Ex plug networks, extension leads.
  • Lifeboats operating from off-shore oil rigs.
  • Mobile containers, cranes or any portable equipment.
  • Electrical boats or truck hook-ups.
  • Petrol industry and research.
  • Power generation.
  • Signal and control.
  • Ex tooling network.


Main advantages of industrial power supply

  • Extensive offer of current ratings
  • Waterproof electrical connectors IP66/IP67
  • AC-22 AND AC-23 breaking capacity
  • GRP or metal casing (up to IK09)
  • Simple connection
  • Long life

DS Decontactor™ For Industry

The DS family of decontactors offer ratings from 30 to 250 A (ratings specified by IEC 60309-1). Both sockets and inlets are available in metal version from 90 A rating.

DN Robust Decontactor™

The DN family of decontactors cover ratings from 30 to 150 A (ratings specified by IEC 60309-1). DN decontactors offer safety and reliability in heavy duty environments. The metal casings and accessories are anticorrosion treated.

DSN Compact & Watertight Decontactor™

With sizes from 20 to 63 A, DSN decontactors are highly compact: a 63 A plug is only 83 mm in diameter. Once connected, the plug and socket is automatically IP66/IP67, the socket-outlet is also IP66/IP67 when the lid is closed.

DB Disconnectable Motor Switch

DB disconnectable motor switches combine the functions of switch-engine cutoff switch and plug and socket-outlet. They guarantee the safety of persons during an operation on the load (motor load or highly inductive).

DS2 CT / MRI Scanner Distribution Units

Our Marechal DS2 CT / MRI scanner distribution units are available in two styles and can be customised with many additional features depending on your requirements.

RETTBOX® (Rescue)

RETTBOX® and RETTBOX-Air® provide an ideal solution for power and compressed air supplies to rescue and fire brigade vehicles, offering automatic ejection of the coupler socket. Available in 20 A or 32 A.

EX Decontactor™ Plugs & Sockets

Ex DECONTACTOR™ plugs and socket-outlets with integrated switch, designed for hazardous areas. With ‘de’ protection mode, they comply with the ATEX 2014/34/EU Directive. They can be used in zones 1 & 2 (Gas) and zones 21 & 22 (Dust). They are certified according to IECEx standards.


The EVO range introduces brand new technology that provides a separable switch-disconnector. A strong and durable switch suitable for all your installations.

Marechal Star Delta 7 Pole Decontactor™ & Connectors

When a motor starts, the short-time overload generated is many times greater than the nominal current. While this overload should not affect properly designed motors, it could be damaging to most connectors.

Thanks to its silver-nickel butt-contact technology, the decontactor withstands these high and repeated overloads without over-heating or change in its performance. The decontactor is thus ideally suited for motor connections, even for motors that have to start frequently.