Key Advantages
- Heavy-Duty Bayonet Locking: The SK28 series utilizes a precision-engineered quick-lock mechanism, requiring only a 90-degree turn to achieve a secure, vibration-proof connection in high-stress industrial environments.
- High-Density Multi-Pin Layout: Supporting an extensive range from 2, 3, 4, 7, 9, 10, 12, 16, 17, 20, 24, 26 Pins, the SK28 allows for the integration of massive hybrid power and data lines within a single 28mm interface, optimizing panel space.
- Certified IP67 Sealing Integrity: Equipped with multi-layer industrial gaskets, this waterproof circular connector provides complete protection against dust and temporary water immersion, ensuring reliability in rainy or wash-down conditions.
- Superior EMI/RFI Shielding: The nickel-plated zinc alloy housing provides a robust 360-degree electromagnetic shield, protecting sensitive data transmissions from interference in noisy factory settings or telecommunication hubs.
- Extreme Mechanical Durability: Built with a thickened metal shell and gold-plated contacts, the SK28 maintains low contact resistance over 500+ mating cycles, resisting corrosion in humid or coastal industrial zones.
Connector drawings
| Male Plug With Cable Clamping Plates |
Female Plug With Cable Clamping Plates |
 |
 |
| Male Plug With Angled Back Shell And Cable Clamping Plates |
Female Plug With Angled Back Shell And Cable Clamping Plates |
|
|
| Square Flange Panel Male Receptacle |
Square Flange Panel Female Receptacle |
 |
|
| Pins |
2
|
3 |
4 |
7
|
9 |
10
|
12
|
16 |
17
|
20
|
24 |
26 |
|
Insulator Front View
|
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
| Rated current(A) |
50 |
50 |
25 |
25 |
25×4
5×5
|
25 |
10 |
10 |
10 |
5 |
5 |
5 |
|
Contact diameter(mm)
|
φ3.5×2 |
φ3.5×3 |
φ2.5×4 |
φ2.5×7 |
φ2.5×4
φ1×5
|
φ2.5×10 |
φ1.5×12 |
φ1.5×16 |
φ1.5×17 |
φ1×20 |
φ1×24 |
φ1×26 |
|
Operating voltage(AC.V)
|
500 |
500 |
500 |
500 |
500 |
500 |
500 |
500 |
500 |
400 |
400 |
400 |
|
Pressure resistance
(AC.V) 1 min
|
1500 |
1500 |
1500 |
1500 |
1500 |
1500 |
1500 |
1500 |
1500 |
1200 |
1200 |
1200 |
|
Contact resistance(mΩ)
|
0.5 |
0.5 |
1 |
1 |
1×4
5×5
|
1 |
2.5 |
2.5 |
2.5 |
5 |
5 |
5 |
|
Insulation resistance (MΩ)
|
2000 |
Versatile Application Scenarios
- Heavy Industry: Main power and control links for large CNC centers, industrial furnaces, and robotic welding stations.
- Railway & Transit: Vibration-resistant connectors for locomotive electronics, signaling systems, and trackside equipment.
- Aviation & UAVs: High-capacity interconnects for ground support equipment and large-scale drone control units.
- Outdoor Infrastructure: Weatherproof connections for 5G base stations, solar tracking arrays, and wind turbine monitors.
- Professional Audio/Video: Heavy-duty power distribution for outdoor concert LED walls and professional mobile broadcasting vans.
FAQ
Q: Is the SK28 fully compatible with the WY28?
A: Yes, the STA SK28 matches the WY28 standard's mounting hole and pin layout exactly, serving as a high-quality alternative.
Q: Can the SK28 handle high-power transmission?
A: Absolutely. The SK28 high-power versions are designed to transmit significant current, making them suitable for motor power inputs.
Q: Does Staconnector provide custom cable harnesses?
A: Yes, Shenzhen Sta Electronic offers customized OEM cable assemblies with specialized shielding and various cable lengths.
