DSN1 Marechal Plugs, Sockets & Decontactors are high-performance industrial connectors engineered for reliability, safety and versatility in demanding environments. Compact, robust and fully waterproof, the Marechal DSN1 Decontactor integrates a built-in switch…
DSN1 Marechal Plugs, Sockets & Decontactors are high-performance industrial connectors engineered for reliability, safety and versatility in demanding environments. Compact, robust and fully waterproof, the Marechal DSN1 Decontactor integrates a built-in switch for quick and safe power disconnection — ideal for industrial plants, manufacturing facilities and hazardous area (ATEX & IECEx) installations.
Rated at 20A and 500V, the DSN1 offers exceptional durability with IP66, IP67 & IP69 protection ratings when connected. When the plug and socket outlet lid is closed, it forms a completely watertight seal, ensuring reliable operation in wet, dusty or corrosive environments.
The “Decontactor” plug and socket design incorporates an integrated load-break switch, enabling safe disconnection under full load. This makes it ideal for maintenance, shutdowns and plant turnaround operations, eliminating electrical hazards and improving uptime efficiency.
Constructed with an impact-resistant GRP (glass-reinforced polyester) casing, the Marechal DSN1 provides robust mechanical protection and long service life. It features a safety shutter (socket IP4X/IPXXD), silver-nickel butt contacts and metallic braid for superior electrical continuity and compliance with international standards.
The Marechal DSN1 Plug, Socket & Decontactor range features a breaking capacity of AC-22 / AC-23, designed for both resistive and inductive loads in low-voltage power distribution systems.
The Marechal DSN Plug & Socket system can be configured using wall-mounting sockets, inlets, outlet boxes, handles and adaptors. A full range of Marechal accessories, sleeves, boxes and handles is available upon request for complete system configuration.
Contact our experts – order or find out more about the DSN1 and our extensive range of Plugs, Sockets & Connectors for your operations. We offer engineered solutions, technical advice, quotations, and fast delivery for both UK & export orders.
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Socket Outlet (Female)
Socket Inlet (Male)
The following video includes an in-depth tutorial on ‘How do Marechal Decontactors Work?‘, featuring a modelled representation of Marechal DSN1 Plugs, Sockets & Decontactors in use, as well as an analysis on the internal workings of the product:
The Marechal DSN1 Decontactor range delivers exceptional performance, efficiency, and electrical safety for industrial and hazardous area power connections.
To ensure full compatibility and adaptability across applications, a wide range of Marechal DSN1 boxes, handles, sleeves, adaptors and accessories are available, designed to maintain mechanical strength and ingress protection even in the most demanding conditions.
Below are the available DSN1 accessory options including poly and metal box variants, ergonomic handle designs, and angled sleeve configurations — each optimised for safety, ease of installation and operational reliability.
We provide competitive pricing, excellent customer service and fast worldwide delivery.
| Category | ATEX Plugs, Sockets & Connectors |
|---|
| Specification | Value |
|---|---|
| Rated Current (with standard wiring) | 20A |
| Maximum Voltage | 500V |
| Ingress Protection (Connected Plug) | IP66 / IP67 / IP69 |
| Ingress Protection (Lid Closed) | IP66 / IP67 / IP69 |
| Impact Resistance (IK Rating) | IK08 |
| Operating Ambient Temperature | -40°C to +60°C |
| Flexible Wiring (Min – Max) | 1 mm² – 2.5 mm² |
| Stranded Wiring (Min – Max) | 1.5 mm² – 4 mm² |
| Other Wiring Options | Available on request |
| Keying Positions | 24 |
| Plug on Socket Outlet | ||||
|---|---|---|---|---|
| Model | A | B | C | E |
| DSN1 Marechal | 147mm | 134mm | 58mm | 42mm |
| Coupler | ||
|---|---|---|
| Model | A | B |
| DSN1 Marechal | 231mm | 89mm |
| Plug on 30° Wall-Mounted Socket Outlet | ||||||
|---|---|---|---|---|---|---|
| Model | A | B | C | D | E1 | E2 |
| DSN1 Marechal | 196mm | 180mm | 68mm | 90mm | 36/56mm | 78mm |
| Plug on 70° Wall-Mounted Socket Outlet | ||||||
|---|---|---|---|---|---|---|
| Model | A | B | C | D | E1 | E2 |
| DSN1 Marechal | 200mm | 244mm | 138mm | 126mm | 117mm | 106mm |
| Plug on 30° Inclined Socket Outlet | ||||||
|---|---|---|---|---|---|---|
| Model | A | B | C | D | E1 | E2 |
| DSN1 Marechal | 177mm | 175mm | 77mm | 108mm | 64mm | 95mm |
| Plug on 70° Inclined Socket Outlet | |||||
|---|---|---|---|---|---|
| Model | A | B | C | D | E |
| DSN1 Marechal | 131mm | 244mm | 126mm | 126mm | 95mm |
| Voltage (50Hz) | Polarity | Socket Outlet (Female) | Socket Inlet (Male) |
|---|---|---|---|
| 20 – 24V | 2P | 611408A | 611808A |
| 190 – 230V | 3P+E | 6114033 | 6118033 |
| 220 – 250V | 1P+N+E | 6114015 | 6118015 |
| 380 – 440V | 3P+E | 6114013 | 6118013 |
| 220 – 250V / 380 – 440V | 3P+N+E | 6114017 | 6118017 |
| 480 – 500V | 3P+E | 6114093 | 6118093 |
| 480 – 500V | 3P+N+E | 6114097 | 6118097 |
| DSN1 Box Type | Angle | Input | Product Reference |
|---|---|---|---|
| Poly Wall Box | 30° | M20 | Marechal 511B3M20 |
| Poly Wall Box | 30° | M25 | Marechal 511B3M25 |
| Poly Wall Box & Poly Sleeve (Black version available) | 70° | Without hole | Marechal 511C7000 |
| Poly Wall Box & Poly Sleeve (Black version available) | 70° | Hole Ø20 | Marechal 511C7M20 |
| Poly Wall Box & Poly Sleeve (Black version available) | 70° | Hole Ø25 | Marechal 511C7M25 |
| Poly Wall Box & Poly Sleeve (Black version available) | 70° | Hole Ø32 | Marechal 511C7M32 |
| Metal Box (+ Earthing Wire) + Poly Sleeve | 30° | M20 | Marechal 511C3M20 |
| Handle Type | Input / Cable Outer Ø | Product Reference | Self-Ejection |
|---|---|---|---|
| Poly Handle with Gland | 9mm – 18mm | Marechal 511P0D18AG | / |
| Poly Handle with Gland | 5mm – 21mm | Marechal 511P0D21 | / |
| Poly Handle with Gland | 9mm – 18mm | Marechal 511P6D18 | / |
| Poly Handle & Poly Cable Gland | 5mm – 12mm | Marechal 511P020P | Ref. +443 (10–14mm) |
| Poly Handle & Poly Cable Gland | 9mm – 18mm | Marechal 511P025P | Ref. +443 (12–18mm) |
| Poly Handle & Poly Cable Gland | 14mm – 25mm | Marechal 511P032P | Ref. +443 |
| Poly Handle (Without Cable Gland) | M20 | Marechal 511P0M20 | / |
| Poly Handle (Without Cable Gland) | M25 | Marechal 511P0M25 | / |
| Poly Handle (Without Cable Gland) | M32 | Marechal 511P0M32 | / |
| Straight Metal Handle | M25 | Marechal 591P0M25 | / |
| DSN1 Sleeve Type | Angle | Product Reference |
|---|---|---|
| Poly Sleeve | 30° | Marechal 511M3 |
| Poly Sleeve | 70° | Marechal 511M7 |
| Metal Sleeve | 0° (Straight) | Marechal 591M0 |
| Metal Sleeve | 30° | Marechal 591M3 |
| DSN1 Accessory Type | Product Reference |
|---|---|
| Industrial & Domestic Adapters | Marechal 6118015D11 |
| Locking Pin for 2 Padlocks (Padlock not supplied) | Socket-outlet ref. +843 |
| Safety Hasp for up to 6 Padlocks | Marechal 613A541 |
| Larger Release Button | Ref. socket +453 |
| Inlet Cap IP66/IP67 | Marechal 611A426 |
| In-line Connections | Marechal 611A346 |
| IP40 Self Returning Lid | Socket-outlet ref. +R |
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Industrial Plugs – Marechal 16A-250A Plugs & Sockets (Decontactors)Full range of voltages, frequencies and contact configurations are available, see Marechal DSN6 Plugs, Sockets & Decontactors.
Industrial Plugs – Marechal 16A-250A Plugs & Sockets (Decontactors)Product Code: 616A426
Industrial Plugs – Marechal 16A-250A Plugs & Sockets (Decontactors)Full range of voltages, frequencies and contact configurations are available, see Marechal DSN6 Plugs, Sockets & Decontactors.
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