Flameproof 125A Plug and Socket– SPeX 680A Series

Sensor Control LLC is a reliable supplier of flameproof 125A plugs and sockets in the UAE, offering top-tier industrial connection systems built to withstand the harshest and most hazardous environments. One of our flagship products is the SPeX 680A single-pole connector, designed by Marechal Electric for use in explosive atmospheres (Zones 1, 2, 21, and 22). This powerful, secure, and easy-to-operate connector system meets the energy needs of industries such as oil and gas, mining, ports, utilities, chemical processing, and heavy infrastructure projects.

With a current rating up to 680A and voltage capacity up to 1000V AC/DC, the SPeX connector is built for applications that require high power transfer, mechanical strength, and top-class explosion protection.

Technical Overview – SPeX 680A Single-Pole Connectors

The SPeX series connectors are single-pole, high-amperage flameproof plugs and sockets designed for safe and efficient power distribution in explosive and high-load industrial settings. These devices comply with ATEX, IECEx, and marine-grade standards, offering exceptional performance and reliability.

• • Rated Current: Up to 680 A
  • Rated Voltage: Up to 1000 V AC/DC
  • Protection Ratings: IP65 / IP66 (when connected), IP2X (when cap removed)
  • Temperature Range: -20°C to +60°C
  • Impact Resistance: IK08
  • Standards Compliance: IEC/EN 60079-0, 60079-7, 60079-31
  • Ex Certification:
    • Ex e IIC Gb (Gas)
    • Ex tb IIIC Db (Dust)
  • Short-Circuit Withstand: 20kA for 250 ms

These single-pole devices support separate contact connection for energy distribution systems and are fitted with a pre-wired pilot circuit to comply with safety interlock conditions under load.

Safety Features You Can Trust

The SPeX series prioritizes user safety in explosive environments, offering multiple protection mechanisms:

• • Electromechanical Interlocking System: Prevents disconnection under load and ensures safe operation.
  • Mechanical and Visual Keying: Prevents incorrect connections for L1, L2, L3, N, Earth, and DC polarity terminals using shape and color.
  • Automatic IP65/IP66 Sealing: Maintains sealing integrity when connected, protecting against water and dust ingress.
  • IP2X Protection: Prevents direct contact with live components when the cap is removed.
  • Locking Pin Option: Allows the use of up to two padlocks for secure isolation during maintenance.

Modular Design for Custom Installations

The SPeX 680A connectors can be installed using various configurations and accessories to suit different site requirements:

• • Plug & Socket Options: Available without lugs and with customizable crimping lugs for different cable types.
  • Wall-Mounted or In-Line Options: Flexible installation options including angled socket-outlets (30°).
  • Color-Coded Contact Identification: Available as per European, USA, and Australian standards (e.g., Brown for L1, Grey for L3, Green for Earth).
  • Cable Size Support:
    • Cross-sections from 70 mm² to 400 mm² (supports up to 680A)
    • Crimping-compatible lugs with double hexagonal die recommendations
    • Lug diameters range from 11 mm to over 40 mm depending on cable size

Applications Across Hazardous UAE Industries

The SPeX 680A series is ideal for industries operating in explosive and high-demand electrical environments:

• • Oil and Gas Terminals and Refineries
  • Mining and Mineral Processing
  • Heavy Industrial Plants
  • Ports and Shipyards
  • Water Treatment and Utility Stations
  • Temporary or Mobile Power in Hazardous Zones

Its performance, safety, and rugged design make it a preferred choice for high-amperage power connectors in Zone 1, Zone 2, Zone 21, and Zone 22.

Key Benefits of the SPeX Series

• High Electrical Endurance: Can withstand frequent overcurrent conditions up to 10× nominal rating
• Visual and Mechanical Safety: Ensures correct and safe use every time
• ATEX/IECEx Certified: Complies with the strictest global explosion-proof requirements
• Marine-Approved: Certified by Bureau Veritas for shipboard use
• Flexible Wiring Options: Crimp lugs, cable size flexibility, and color coding make it installation-friendly