Marechal Electric : 65 Years Of Expertise In Industrial Equipment

Published 19 Oct 2020

Marechal Electric

65 Years Of Expertise In Industrial Equipment

Thanks to Carin Hannay at Sparks Electrical News & Lighting Design Magazine

Founded in 1952, the Marechal Electric counts among the major players in Low Voltage LT electrical connection systems in industrial environments with or without the presence of an ATEX explosive atmosphere. With a consolidated turnover of nearly €100 million, its operational and/or sales subsidiaries in Europe, America, Asia, the Middle East, Africa and Australia, offer the best products and local services to the most demanding customers.

A workforce of nearly 500 worldwide includes R&D, manufacturing and commercial development skills. The product range is intended for all sectors of industrial activity where safety and endurance are required.

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.

History

Since its creation in 1952, Marechal Electric is a French family business, independent, committed to its customers, its employees and its suppliers.

The company specialises in the manufacture of low voltage electrical connectors from 5 A to 700 A, as well as electrical solutions for potentially explosive atmospheres through the Technor^® brand.

Its customers benefit from Marechal® products designed to ensure safety, durability, performance, ease of use and energy efficiency.

The company offers products under two complementary brands MarechaL® and Technor® with the same level of quality requirement worldwide. Committed to this approach, Marechal Electric has remained since 1952 an example of success, offering products of unrivalled quality, resulting from the research and development that make the reputation of the French electrical industry. The principles of Marechal Electric The principles of Marechal Electric stands also for collaboration based on trust, proximity with partners, suppliers, customers and employees.

A technology without equivalent …

Marechal® Decontactor™
The only electrical connector that combines a connector and a switch. Its unique technology allows you to connect and disconnect electrical connectors from 5 A to 250 A on load.

Butt contact on a silver-nickel tip

The Marechal® Decontactor™ and connectors are all fitted with butt contacts with silver-nickel tips. They provide exceptional connection quality by eliminating the damage due to electric arcs and to wear seen with pin and sleeve sockets. The silver is an excellent conductor of current even when oxidized. Conductivity is optimal even in the presence of vibration and temperature variation thanks to the pressure of the springs.

Marechal Decontactors

Crimped braids

The Marechal® contact uses a crimped braid with a spring which provides contact performance and tolerances superior to pin and sleeve contacts. The flexibility of the braid and the spring allows the base contact tip to always be perfectly aligned with the plug contact tip. These contacts, which are silver and anti-corrosion treated, offer very good corrosion resistance.

Elastic lock terminals

Marechal® contacts are fitted with ‘elastic lock’ connection terminals. The wire clamp is split and surrounded by a rubber ring. This method allows the tightening force on the wire to be constant. Hence despite the creep of the copper or aluminium, the variations of temperature and vibration, the conductor wire is perfectly connected to the contact terminal.

Safety shutter

Decontactor™ bases are fitted with an interlocked safety shutter which prevents access to live contacts. This shutter only unlocks at the time of connection of the plug into its base.

Marechal® range connectors and Decontactors™ have casings made from fibre glass- or metal-reinforced GRP, depending on the models. This choice of material contributes to the excellent mechanical performance and longevity of the socket.

Out With The Old, In With The New. Contact T&D to arrange a UK site demonstration or survey of your power distribution requirement. No obligation. No cost.

Economy of installation: dual-voltage

With a single base (e.g.: 3 Pnt – 230/400 V) it is possible to feed three plugs indifferently:

a 3 Pnt – 230/400 V plug
a 3 Pnt – 400 V plug
a Pnt – 230/400 V plug

This compatibility provides real savings on the installation of these sockets for the user.

Benefits:

These technical choices provide Marechal® connectors and Decontactors™ with unparalleled performance:

Absolute safety after thousands of connections/disconnections,
The ability to withstand repeated overloads, particularly on power supplies to motors with frequent starting,
Perfect operation in the presence of vibration and variations in temperatures,
Resistance to shocks, falls and climatic variations,
A perfect resistance to corrosion and the most severe chemical agents.

Hazardous Area Electrical Distributors

EXPERTS IN EQUIPMENT FOR EXPLOSIVE ATMOSPHERES

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 UK and international projects.

You can Follow our Showcase Page on LinkedIn to receive updates about more hazardous area product innovations, industry news, whitepapers, videos, technical tips and training webinars for professionals involved in the explosive atmosphere industries.