High Current Industrial
Plugs and Sockets
Available Models -- 200A / 250A / 400A Series
Choose from high current industrial plugs, sockets, connectors and surface inlets for replacement, generators, power distribution, shore power, mining and other heavy-duty industrial applications.
Industrial Plug
Mobile male plug for heavy-duty cable connection and temporary power supply.
Available Current: 200A / 250A / 400A
Typical Use: Cable connection, generator output, temporary power
Replacement: Small quantity orders accepted
Surface Inlet
Fixed male inlet for generator, equipment, panel or power distribution mounting.
Available Current: 200A / 250A / 400A
Typical Use: Generator inlet, panel mounting, equipment power input
Replacement: Send photos for model matching
Industrial Connector
Mobile female connector for cable extension and high-current power connection.
Available Current: 200A / 250A / 400A
Typical Use: Cable extension, mobile power connection, temporary power
Replacement: Small quantity orders accepted
Industrial Socket
Fixed female receptacle for power distribution, shore power and industrial terminals.
Available Current: 200A / 250A / 400A
Typical Use: Fixed outlet, power distribution, shore power connection
Replacement: Send photos for model matching
Need a Replacement for a Broken 200A / 250A / 400A Plug or Socket?
If your existing high-current industrial plug or socket is damaged, overheated, cracked, loose, or no longer waterproof, send us photos for model matching. Small quantity replacement orders are accepted.
What to Provide for a Fast Quote
- 1. Current rating: 200A / 250A / 400A
- 2. Voltage and pole configuration
- 3. Product type: plug, socket, connector or inlet
- 4. Required quantity
- 5. Application: generator, shore power, mining, power distribution, etc.
- 6. Photos of the old product, label, pins and cable entry
Technical Verification Matrix
System Data extracted from Official CVC/CNAS Test Reports (No. 3816 & 3819) for 400A Plug & Socket.
| CNAS Test Item | IEC 60309-1 Standard | Our Verified Result (400A System) | Compliance |
|---|---|---|---|
| Temperature Rise (Continuous Full Load) | Max Limit 50K | 35.9K (Socket) / 38.8K (Plug) | PASSED |
| Earthing Resistance (Safety Circuit) | ≤ 0.05 Ω | 0.02 Ω (Socket) / 0.03 Ω (Plug) | PASSED |
| Cable Anchorage (Pull Test) | 100 Cycles, Disp. ≤ 2mm | 500N Pull Force (< 1mm Displacement) | PASSED |
| Heavy Drop Test (Impact Resistance) | No damage | Passed (75cm, 8 Drops with Heavy Cable) | PASSED |
| Dielectric Strength (Insulation Test) | No Breakdown/Flashover | 2000V AC / 1 Minute (Zero Failure) | PASSED |
| Glow-Wire Test (Fire Retardancy) | Pass at 850℃ | 850℃ (0s Ignition/Extinguished) | PASSED |
| Ingress Protection (IP) | Declared IP Rating | IP67 (Submersion Tested) | PASSED |
Hardware Teardown
Please note: The official laboratory testing data above was achieved using our standard baseline H59-1 Brass conductors, which already provides an industry-leading thermal performance.
However, for demanding TBM operations and heavy-duty projects, the system we quote is directly upgraded to Red Copper with ≥20μm silver plating.
This premium material upgrade ensures that your actual operating temperature and earthing resistance will be significantly superior and safer than the baseline test results.
Engineering Data Pack
Download the full dimension drawings and our Complete System Technical Test Summary for vendor approval.
REQUEST DATA PACKIn-House Quality Control
We don't guess; we test. Every SFE industrial plug and socket is rigorously engineered and validated in our own laboratory to guarantee absolute IEC 60309 compliance.
Temperature Rise Test
Monitors heat generation under continuous full load to guarantee the temperature stays well below the IEC 50K safety limit. Zero risk of melting.
850°C Glow-Wire Testing
Ensures our PA66 plastic carriers are strictly self-extinguishing (0s ignition) and fully fire-proof under extreme electrical short-circuit faults.
Hi-Pot / Dielectric Test
Verifies extreme insulation strength. We apply high voltage surges to ensure zero dielectric breakdown, preventing electric shock hazards in harsh environments.
IP44/IP67 Waterproof Test
Simulates extreme weather conditions, from heavy splashing to high-pressure water jets, ensuring absolute waterproof integrity for outdoor applications.
Pendulum Impact Test
Applies concentrated kinetic strikes to the housing surface to verify extreme mechanical impact resistance, critical for heavy industry and mining operations.
Extreme Weather Simulation
From -30°C freezing cold to +80°C scorching heat. We cycle our products through extreme temperature chambers to guarantee reliable performance globally.
Built For Industrial Power Applications
Our 200A / 250A / 400A high-current plugs and sockets are used for replacement, generators, power distribution, shore power, mining and other heavy-duty industrial power connections.
Replacement & Maintenance
Suitable for replacing damaged, overheated, cracked or loose high-current industrial plugs and sockets. Send photos of the old product for model matching.
- Small quantity accepted
- Photo-based model matching
- Plug, socket, connector and inlet available
Generators & Power Distribution
Designed for generator output, temporary power supply, distribution panels and high-current cable connections where stable power transmission is required.
- 200A / 250A / 400A current options
- Surface inlets for generator or panel mounting
- Industrial plugs and connectors for cable extension
Shore Power, Mining & Heavy Industry
Built for demanding environments such as shore power, mining sites, tunneling projects, construction equipment and other heavy-duty industrial applications.
- Low temperature rise under high-current load
- IP protection for harsh environments
- PA66 + glass fiber base and metal housing options
High Current Plugs and Sockets FAQ
Common questions about 200A, 250A and 400A high current industrial plugs, sockets, connectors, surface inlets, replacement matching and heavy-duty power connection applications.
