Marechal DS9 | Product Innovation in Electrical Distribution & Safety
Published 26 Jan 2021
Marechal DS9 – Plugs & Sockets
Marechal DS9
Recently Marechal Electric have introduced technical improvements to their DS2 250A plugs & sockets. The same new casing design is now also as standard on the DS9 150A decontactors.
Electrical plugs and socket-outlets in the Marechal DECONTACTOR™ range are sized from 30A to 400A. The DS range with integrated switch is the widest and most comprehensive DECONTACTOR™ range. Both sockets and inlets are available in metal version from 90A rating. It offers numerous mounting options (boxes, handles and sleeves).
Marechal DS plugs & sockets have an incorporated breaking capacity of AC-22 / AC-23 and have either an impact resistant GRP or metal casing. The DS9 also features a safety shutter, silver-nickel butt contacts and metallic braid to comply with international standards.
With a single base (e.g.: 3Â Pnt – 230/400 V) it is possible to feed 3 plugs indifferently:
- a 3 Pnt – 230/400Â V plug
- a 3 Pnt – 400 V plug
- a Pnt – 230/400Â V plug
This compatibility provides real savings on the installation of these sockets for the user.
Main Changes to the Marechal DS9
- Design changes with integrated closing mechanism of the socket, increased robustness, easier connection and increased wall thickness to the casing.
- Improved impact resistance (IK10).
- Addition of a silicon gasket giving IP66/67 watertightness with closed lid or with inlet/socket connected.
- Modification of locking pawl system with an improved robustness
- Still compatible with previous DS9 versions – No additional kits required
- 180º lid opening & larger STOP latch button, which were optional on the older model, are now featured as standard (Please note that the self-returning lid option (R) becomes a 180° returning lid instead of 120°)
Marechal DS9 Improvements
Marechal DS Decontactor
Features
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.
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. The 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.
Marechal DS Decontactor
Benefits
These technical choices provide Marechal connectors and DECONTACTORs™ with unparalleled levels of performance:
- Absolute safety, even 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.
The quality of the material, the design, the assembly and the inspection of each component are at the core of Marechal’s know-how and technology.
Each component provides a precise function that optimizes the performance, safety and sustainability of our sockets and installations.
Marechal DS Range – Bursting with features to ensure user safety
Marechal DS9 Plugs used for Blower Fan Connections
150amp Marechal DS9 plug connectors provide safe and reliable LV power.
Power Distribution & Control In Hazardous Areas
T&D also distribute hazardous area isolators, control panels and distribution boards, electrical enclosures and motor starters certified according to ATEX for use in Zone 1 & Zone 2 (gas/vapour) explosive atmospheres.
