Key Advantages
High Current Capacity: Features specialized contact configurations capable of handling up to 50A rated current, ideal for demanding power distribution applications in heavy machinery or industrial equipment.
Maximum Pin Versatility: Offering configurations from 2 pins up to an ultra-high density 26 pins, the SD28 series can consolidate complex wiring looms into a single, reliable connection point.
Industrial Ruggedization: Built with a durable chrome-plated zinc alloy shell, these connectors provide excellent resistance to impact, corrosion, and EMI, ensuring longevity in harsh factory automation settings.
Guaranteed Environmental Seal: The IP65 waterproof rating ensures complete protection against ingress from dust and water jets, making the SD28 suitable for applications requiring routine washdowns or outdoor exposure.
Premium Material Reliability: Utilizes gold-plated brass contacts and high-temperature PPS insulators to ensure minimal signal loss, prevent oxidation, and withstand extreme operating conditions from -40°C to +85°C.
Connector drawings
| Male Plug With Cable Clamping Plates |
Female Plug With Cable Clamping Plates |
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| Male Plug With Angled Back Shell And Cable Clamping Plates |
Female Plug With Angled Back Shell And Cable Clamping Plates |
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| Square Flange Panel Male Receptacle |
Square Flange Panel Female Receptacle |
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|
| Coupling Type |
Threaded Locking Mechanism |
| IP Rating |
IP65 Waterproof & Dustproof |
| Material (Shell) |
Zinc Alloy (Chrome Plated) |
| Insulator Material |
PPS Thermoplastic (High Temp 260℃) |
| Contact Material |
Brass with Gold Plating |
Pin
|
2
|
3 |
4 |
7
|
8 |
9 |
10
|
10B |
12
|
16 |
17
|
20
|
24 |
26 |
|
Front view
|
 |
 |
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| Rated Current |
50A |
50A |
25A |
25A |
25A |
25×4A
5×5A
|
25A |
10A |
10A |
10A |
10A |
5A |
5A |
5A |
|
Contact Diameter（mm）
|
φ3.5×2 |
φ3.5×3 |
φ2.5×4 |
φ2.5×7 |
φ2.5×8 |
φ2.5×4
φ1×5
|
φ2.5×10 |
φ1.5×10 |
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 |
500 |
500 |
400 |
400 |
400 |
|
Withstand Voltage (AC.V) 1 min
|
1500 |
1500 |
1500 |
1500 |
1500 |
1500 |
1500 |
1500 |
1500 |
1500 |
1500 |
1200 |
1200 |
1200 |
|
Contact resistance
(mΩ)
|
0.5 |
0.5 |
1 |
1 |
1 |
1×4
5×5
|
1 |
2.5 |
2.5 |
2.5 |
2.5 |
5 |
5 |
5 |
|
Insulation resistance(MΩ)
|
2000 |
2000 |
2000 |
2000 |
2000 |
2000 |
2000 |
2000 |
2000 |
2000 |
2000 |
2000 |
2000 |
2000 |
|
Wire Gauge (mm²/AWG)
|
≤10/7 |
≤10/7 |
≤4/11 |
≤4/11 |
≤4/11 |
≤4/11
≤0.75/18
|
≤4/11 |
≤2/14 |
≤2/14 |
≤2/14 |
≤2/14 |
≤0.75/18 |
≤0.75/18 |
≤0.75/18 |
Versatile Application Scenarios
Heavy Industrial Power: Main power feeds for large motors and machinery.
Rail Transit: Inter-car connections and signaling systems in robust environments.
Complex Control Systems: High-density I/O connections for PLC systems and switchgear.
Outdoor Data Acquisition: Sealed interfaces for environmental monitoring stations.
Military & Defense (Industrial Use): Rugged COTS solutions for ground support equipment.
FAQ
Q: What is the maximum current the SD28 series can handle?A: The SD28 series offers specific 2 and 3-pin configurations rated for a high capacity of up to 50 Amps.
Q: Can I get both high current and high pin count in a single connector?A: Yes, certain configurations mix different contact sizes to support both high current power lines and multiple low-current signal lines simultaneously.
Q: Are these connectors compatible with harsh chemical washdown procedures?A: The IP65 rating and chrome plating offer good chemical resistance. For specific chemical compatibility, please consult our material datasheets based on your specific application environment.
