SD20- IP68 25A Waterproof Docking Aviation Male Plug with Female Socket

General Overview

The SD20 series connectors are high-performance, waterproof aviation-style connectors designed for robust and secure electrical connections in outdoor and industrial applications. Thanks to their IP68-rated waterproof sealing, these connectors ensure reliable power transmission even in harsh environments. They are commonly used in marine, automotive, outdoor equipment, and industrial automation applications.

1. Electrical Specifications

• Rated Current: 25A
• Rated Voltage: 500V AC / DC
• Contact Resistance: ≤ 5mΩ
• Insulation Resistance: ≥ 2000MΩ (at 500V DC)
• Dielectric Strength: ≥ 2000V AC/min (1 minute)
• Number of Poles: 2, 3, 4, 5, 7, or 9 pins (optional)

2. Mechanical Specifications

• Connector Type: Male Plug (with pins) and Female Socket (with sockets)
• Wire Connection Type: Solder / Screw
• Cable Diameter: 6-12mm (adjustable with provided gaskets)
• Durability: ≥ 500 mating cycles
• Locking Mechanism: Threaded coupling with self-locking anti-vibration design

3. Environmental Specifications

• Protection Rating: IP68 (dust-tight and protected against prolonged immersion under pressure)
• Temperature Range: -40°C to +105°C
• Corrosion Resistance: Salt spray tested for 48 hours
• Flammability Rating: UL94-V0 (flame-retardant materials)
• UV Resistance: High resistance to UV radiation for outdoor use

4. Material Specifications

• Housing Material: High-strength nylon PA66 (fire-resistant, impact-resistant)
• Contact Material: Copper alloy with silver-plated finish for low resistance and anti-oxidation properties
• Sealing Gaskets: High-grade silicone rubber for long-term water and dust resistance
• Coupling Nut: Zinc alloy with surface treatment to resist wear and corrosion

5. Dimensional Specifications

• Plug Diameter: 20mm
• Overall Length: ~75mm (assembled)
• Panel Cutout Size (for Female Socket): Ø20.5mm
• Mounting Thread for Panel: M20 x 1.5
• Weight: Approximately 80g per connector set

6. Key Features

• Waterproof Design: The IP68 rating ensures complete protection against dust and submersion in water up to 1 meter for prolonged periods.
• High Current Capacity: Rated for 25A, suitable for heavy-duty applications.
• Threaded Coupling: Provides secure connections that are vibration and shock-resistant.
• Versatile Applications: Suitable for indoor and outdoor environments, including harsh industrial and marine settings.
• Easy Installation: Available in solder and screw types for flexible and quick assembly.

7. Applications

• Marine and Offshore: Boats, underwater lighting, and other marine electrical systems.
• Industrial Automation: Robotics, CNC machines, power tools, and sensors.
• Renewable Energy: Solar and wind power systems.
• Outdoor Equipment: Street lighting, security cameras, and billboards.
• Automotive and Railways: Electric vehicles and railway signal systems.